AA Greetings Prompts

AA greetings, also referred to as AA prompts, are similar to voice-mail greetings, discussed earlier. AA prompts are the messages that a caller hears when they are routed to the AA. As with voice mail, administrators and subscribers with the proper permissions can record and personalize an AA greeting. Unlike a voice mailbox, AA offers the capability to change the greeting based upon the day or a specific time of day. By changing the content of a prompt a business can personalize the AA script...

Activate and Download the Practice Exam

Once the exam engine is installed, you should then activate the exam associated with this book, as follows Step 1. Start the Boson Exam Engine (BEE) software from the Start menu. Step 2. The first time you start the software, it should ask you to either log in or register an account. If you do not already have an account with Boson, select the option to register a new account. (You must register in order to download and use the exam.) Step 3. Once you are registered, the software might prompt...

Activating Other Exams

The exam software installation process, and the registration process, only has to happen once. Then, for each new exam, only a few steps are required. For instance, if you also bought the CCENT CCNA ICND1 Official Exam Certification Guide and the CCNA ICND2 Official Exam Certification Guide, you could follow the steps listed in the last page or so to install the software and activate the exam associated with this book. Then, for the practice exam associated with the ICND1 book and ICND2 book,...

Answers to the Do I Know This Already Quizzes and QA Sections

Both the hardware platform and the license come into play here. The hardware platform has a maximum mailbox limit and the license determines the number of mailboxes that can be configured within the platform's maximum limit. 12. B. Starting a backup is a manual process for Cisco Unity Express. An administrator must log in to the GUI and click the Start Backup button to begin the process. 7. D. While port module port is a valid dial-peer configuration, it is used for routing over a...

Assign Ports to VLANs

Now that the VLANs exist, you can assign the necessary ports to each VLAN. Based on the diagram shown earlier in Figure 3.10, the DHCP server will need to join the data VLAN. You will configure FastEthernet 0 20 (connecting to the router Cisco Unified Communications Manager Express CME device) in the next section when you set up routing between VLANs. Example 3.12 assigns FastEthernet 0 10 on SwitchA to VLAN 50. Example 3.12 Assigning Switchport to a VLAN SwitchA configure terminal...

Call Processing Layer

The call processing layer is responsible for just that processing calls and all the functionality that goes with them. When a user picks up their phone handset, the call processing layer gets involved to generate a dial tone. Each digit that is dialed is then analyzed and processed. The ring signal is then generated at the remote device and the call is connected. As the users converse, if one of them presses the Transfer button, for example, the call processing layer steps in to process this...

CCNA Voice Exam Updates Version

Over time, reader feedback allows Cisco Press to gauge which topics give our readers the most problems when taking the exams. Additionally, Cisco may make small changes in the breadth of exam topics or in emphasis of certain topics. To assist readers with those topics, the author creates new materials clarifying and expanding upon those troublesome exam topics. As mentioned in the introduction, the additional content about the exam is contained in a PDF document on this book's companion website...

Change password

The recorded name, also called the spoken name, is used by Cisco Unity Express to identify this mailbox to other subscribers on the system. The next step in the self-enrollment process is to record your personal greeting that will be played to callers that are transferred to your voice mail. The final step for self-enrollment is to select a password that you will use to log in to Cisco Unity Express via the TUI. Note Although the tutorial prompts for a password, the PIN is the value that is...

Cisco 7906G and 7911G

Whereas the Cisco 3911 might typically be used in a break room or lobby, the Cisco 7906G and 7911G (shown in Figure 2.5) add enough features that they could be considered for a typical network end user. These single-line phones provide the following key features Inline power support Can receive power using the Ethernet cable as a source Onscreen softkey support Four onscreen softkeys for features such as hold, transfer, and redial Basic XML service support Provides a scrollable, three-line...

Cisco 7985G

The Cisco 7985G model represents the first integrated video and VoIP phone solution from Cisco. Although video could have been integrated into the 797X series, the natural sitting posture of most people would give an unflattering up the nose view when using VoIP capabilities. To remedy this, the Cisco 7985G places the camera and video screen at eye level, as shown in Figure 2.8. Courtesy of Cisco Systems, Inc. Unauthorized use not permitted. The Cisco 7921G phone brings 802.11 wireless and VoIP...

Cisco Configuration Assistant Tool

Cisco simplified the management of the SBCS suite by designing a management interface that is powerful, intuitive, and complete. The Cisco Configuration Assistant (CCA) is a GUI configuration tool that simplifies the customization of any preconfigured system parameters that cannot be left to system defaults. The CCA is aware of the components that make up the SBCS suite and will poll a new system to determine which of the components have been applied to a particular setup. The CCA facilitates...

Cisco Unity Express

The Unity Express option represents the smallest Unity solution you can add to your network. Unity Express runs from either a flash module or hard drive that can be added to a variety of Cisco router platforms. The flash module version of Unity Express is added as an Advanced Integration Module (AIM) card, which plugs in to the motherboard of the router. The hard drive version of Unity Express installs as a network module. Although the flash Unity Express version does not consume a network slot...

Cisco Unity Products

Cisco has designed the Cisco Unity product line to encompass everything dealing with messaging. Whereas traditional phone systems are geared to deliver messages to telephone handsets, Cisco Unity allows you to deliver messages to a variety of clients. This allows VoIP network users to unify (thus the name) all messaging into a single point of access. For example, fax messages, voice mail, and e-mail can all be delivered to a single inbox. The Cisco Unity product line comes in three different...

Command Syntax Conventions

The conventions used to present command syntax in this book are the same conventions used in the IOS Command Reference. The Command Reference describes these conventions as follows Boldface indicates commands and keywords that are entered literally as shown. In actual configuration examples and output (not general command syntax), boldface indicates commands that are manually input by the user (such as a show command). Italics indicate arguments for which you supply actual values. Vertical bars...

Communications System Suite

Chapter 11 Introducing the Smart Business Communications System Chapter 12 Configuring and Maintaining the UC500 Series for Voice Unified Communications and the Smart Business Communications System This section provides an introduction to the concept of Unified Communications and explains how the Smart Business Communications System (SBCS) is positioned to deliver it to the small-medium business (SMB) market. Components of the Smart Business Communications System This section introduces the...

Configure and Verify VTP

Rather than start with VTP configuration, you first need to understand the command to verify VTP. This is necessary because you never want to introduce into the network a switch that has an existing VTP configuration (otherwise, the existing VLAN database of your organization could be overwritten, causing a massive network outage). The command to verify VTP operation is show vtp status, which is shown in Example 3.1 on SwitchA. Example 3.1 The show vtp status Output Example 3.1 The show vtp...

Configuring a Router Based DHCP Server

We have currently made it up to Step 4 in the preceding IP phone boot process. The phones in our network now need to receive IP address and TFTP server information. In the network design scenario used in this chapter, we are using the WAN branch router as the DHCP server. Using a router as a DHCP server is a somewhat common practice in some small and midsized networks. Once you move into larger organizations, DHCP services are typically centralized onto server platforms. Either DHCP option is...

Configuring Analog Voice Ports

Similar to Ethernet, when you connect a cable to an analog voice port on a router, it just works (provided there is a signal coming from the other end). The router receives the electrical signals from the line and processes them normally. In addition to normal call processing, there are a few settings you can tune on each interface type to change the way it operates with the other end of the connection. This section describes configuration options for Foreign Exchange Station (FXS) ports and...

Configuring Intercom

Intercom configurations are common in traditional phone systems. This feature allows an administrative assistant and executive to work closely together by having a speakerphone tether between them. Technically, the way intercom deployments work is through a speed-dial and auto-answer speed-dial configuration. If the administrative assistant presses the button configured as an intercom, it speed dials the executive's phone, which auto-answers the call on muted speakerphone. To establish two-way...

Configuring VoIP Dial Peers

Looking at the scenario shown in Figure 8.7, the POTS dial peers now provide connectivity to the legacy voice equipment. However, CME_A and ROUTER_B are divided by an IP WAN connection that the legacy voice equipment must cross to achieve end-to-end communication. Figure 8.7 Dial Peer Configuration Scenario Figure 8.7 Dial Peer Configuration Scenario To accomplish this connectivity, you must use VoIP dial peers, because you are crossing an IP-based network. Example 8.11 configures the necessary...

Contents at a Glance

Chapter 3 Chapter 4 Chapter 5 Chapter 6 Perspectives on Voice Before Convergence 5 Perspectives on Voice After Convergence 31 Unified Voice Using Cisco Unified Communications Manager Express 55 Connecting IP Phones to the LAN Infrastructure 57 Installing Cisco Unified Communications Manager Express Basic Cisco CME IP Phone Configuration 133 Configuring Cisco Unified CME Voice Productivity Features Connecting via Gateways and Trunks 213 Configuring and Verifying Gateways and Trunks 245 Voice...

Creating Communities

Now, with a preliminary understanding of the concept of a CCA community, you are poised to create your own. Creating your own community will go a long way toward cementing your understanding of the concept and its parameters. To create a new CCA community, you must seed the new community discovery process. In that process, you need to decide how you will detect the members of your new CCA community. The default method involves selecting a central seed device, usually your UC520, and using its...

Default Auto Attendant Scripts

A call is routed from Cisco Unified CME or Cisco Unified Communications Manager to the Cisco Unity Express AA. When the call arrives at the Cisco Unity Express AA, a Cisco Unity Express script is activated. This script determines the treatment the caller will receive. For example, assume that a caller dials 404.555.1050 and is routed to a Cisco Unity Express AA. The caller hears Welcome to the automated attendant. To enter the phone number of the person you are trying to reach, press 1. To...

Definitions of Key Terms

Define the following key terms from this chapter, and check your answers in the glossary. analog signal loop start signaling ground start signaling glare dual-tone multifrequency (DTMF) pulse dialing pulse-amplitude modulation (PAM) pulse-code modulation (PCM) time-division multiplexing (TDM) channel associated signaling (CAS) common channel signaling (CCS) robbed bit signaling (RBS) Super Frame (SF) Extended Super Frame (ESF) Q.931 local loop private branch exchange (PBX) key system VoIP Why...

Deploying the SBCS Suite for Up to 48 Users

Although no more difficult than deploying the SBCS suite for 8 or 16 users, the design for a system that supports up to 48 users is a bit different. As is the case in the deployment of every SBCS design, the UC520 is the heart of the design. The UC520 chassis that supports 32 or 48 users comes in a rack-mount form factor and does not come with an integrated wireless option. Typically, PSTN connectivity for an office of this size will be a channelized T1 E1 however, high-density FXO models of...

Determine the time of day

If open, play a prompt allowing the caller to choose which subscriber to be transferred to. Press 1 to talk to John Smith. Press 2 to talk to Jane Doe. If closed, transfer the caller to an off-premises number. This can be accomplished by using Cisco Unity Express Editor to create a custom script, with each task described previously performed by software steps in the script. Whereas this example demonstrates a very basic script, Cisco Unity Express Editor has the capability to create very...

Dial by Name and Dial by Extension

When a caller is redirected to the AA, they are given the option to be transferred to a subscriber. To identify the desired subscriber, the caller can choose to spell the subscriber's name or enter the subscriber's extension. With the spell-by-name function, the administrator has the option to require callers to use either last name first or first name first. For example, a search for John Smith using the last-name-first configuration would result in the caller entering Smith John on the phone...

Do I Know This Already Quiz

The Do I Know This Already quiz allows you to assess whether you should read this entire chapter or simply jump to the Exam Preparation Tasks section for review. If you are in doubt, read the entire chapter. Table 8.1 outlines the major headings in this chapter and the corresponding Do I Know This Already quiz questions. You can find the answers in Appendix A, Answers to the 'Do I Know This Already ' Quizzes. Table 8.1 Do I Know This Already Foundation Topics Section-to-Question Mapping Table...

Enabling the Cme Gui

Cisco provides a graphical user interface (GUI) that allows you to manage some of the CME basic functions through a web interface. These basic functions include configuring and managing ephones, ephone-dns, some system and voice-mail functions, and reports. Note After being in the Cisco world for some time, you will definitely get the feeling that real Cisco techs use the command-line interface (CLI). Seeing the CME GUI will only reinforce that feeling although it does enable you to configure...

Exam Preparation Tasks

Illustrates the wired connections to an analog phone List of informational signaling types Two methods used to deliver signaling with digital circuits Specific signaling time slot for T1 and E1 circuits using CCS List The components of the PSTN 22 List The components of the PSTN 22

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Windows version Windows XP SP1 or later, or Windows Vista Ultimate You can obtain the CCA software from the following URL http tinyurl.com 5cn884. You will be asked to provide your Cisco.com login. Note The preceding URL is actually substantially longer but was shortened for your convenience. This URL directs you to version 1.6 of the CCA tool the latest version available as of the time of this writing. For those reading this book that may be a bit more adventurous, it is well worth your time...

Gateway and Trunk Concepts

At this point, you now have the knowledge to assemble, configure, and operate a VoIP network internal to your organization. At some point, this voice network will have to grow beyond itself and connect to other voice networks, perhaps most importantly the PSTN. This chapter is dedicated to describing the methods you can use to connect your VoIP network to other networks. The chapter begins by discussing the process of converting spoken audio into packets. From there, this chapter discusses the...

General Delivery Mailboxes

Unlike the subscriber mailbox, a general delivery mailbox (GDM) is assigned to a group of people. For example, a GDM is created and assigned to the customer service department. The delivery of a message to the GDM is similar to the delivery of a message to a subscriber mailbox. An extension number associated with the GDM is configured to forward to Cisco Unity Express if this extension is busy or is not answered. A caller is redirected to the GDM greeting. This greeting may state, Thank you for...

About the Authors

Cioara, CCIE No. 11727, works in many facets of the Cisco networking realm. As an author, he has written multiple books for Cisco Press and Exam Cram. As an instructor, he teaches at Interface Technical Training (http www.interfacett. com) in Phoenix, Arizona. Likewise, Jeremy has recorded many E-Learning titles at CBTNuggets (http www.cbtnuggets.com). Finally, Jeremy is the CIO of AdTEC Networks and works as a network consultant focusing on Cisco network and Voice over IP (VoIP)...

How This Book Is Organized

Although this book could be read cover-to-cover, it is designed to be flexible and allow you to easily move between chapters and sections of chapters to cover just the material that you need more work with. If you do intend to read all the chapters, the order in the book is an excellent sequence to use. The core chapters, Chapters 1 through 12, cover the following topics Chapter 1, Perspectives on Voice Before Convergence This chapter discusses what would be known as the traditional telephony...

IIUC Exam Topics

Table I.1 lists the exam topics for the 640-460 IIUC exam. This table also lists the book parts in which each exam topic is covered. Describe the components of the Cisco Unified Communications Architecture Describe the function of the infrastructure in a UC environment Describe the function of endpoints in a UC environment Describe the function of the call processing agent in a Describe the function of messaging in a UC environment Describe the function of auto attendants and IVRs in a UC envi-...

Integrated Messaging

With Cisco Unity Express, a subscriber has the option of using the TUI, VoiceView Express, or their e-mail client to retrieve messages. Integrated messaging provides access to voice-mail messages via an e-mail client and allows a subscriber to treat voice-mail messages similarly to e-mail messages. Using an IMAP-capable e-mail client, a subscriber has the option of adding an IMAP e-mail account to their existing e-mail client. This allows the subscriber's e-mail client to access both the...

Internet Low Bitrate Codec One Codec to Rule Them

The VoIP industry has long desired a compressed codec that can be as universally supported as G.711. Unfortunately, most of the existing compressed codecs are either proprietary in nature, do not deliver on quality requirements, or are unable to meet bandwidth demands. All of that is changing with the creation of the Internet Low Bitrate Codec (iLBC). iLBC was developed in 2000 as a nonproprietary, high-quality, bandwidth-savvy codec that industry-wide vendors could use when communicating...

Key Topic

CME_Voice(config-telephony) create cnf-files CNF file creation is already On Updating CNF files CNF files update complete At this point, the CME router does not have any configured IP phones, so it generates only generic configuration files. These generic configuration files allow IP phones to reach the CME router and download the necessary firmware files, but not much else. Once you configure the router to support IP phones, the CME router generates a unique configuration file for each phone...

Keyswitch Model

Using a keyswitch model of configuration mirrors the TDM keyswitch environment, which provided shared numbers to the phones supported by the system. Figure 4.4 illustrates a keyswitch model design. x1001 x1001 x1001 x1002 x1002 x1002 x1003 x1003 x1003 Figure 4.4 Cisco Unified CME Keyswitch Model x1001 x1001 x1001 x1002 x1002 x1002 x1003 x1003 x1003 Figure 4.4 Cisco Unified CME Keyswitch Model The receptionist is not included in the design in Figure 4.4 because keyswitch environments typically...

Licensing and Models for Cisco Unified CME

Table 4.3 Cisco Unified Communications Manager Express Feature Licenses Table 4.3 Cisco Unified Communications Manager Express Feature Licenses Alas, all is not free in the world of IP telephony. To legally operate a Cisco Unified CME system, you must purchase three types of licenses IOS license The CME router must be licensed to run a version of Cisco IOS that is capable of supporting the CME software. Feature license The feature license (also known as seat license) grants the CME router the...

Live Reply and Live Record

The live reply feature allows a subscriber to use the received caller identification number (Automatic Number Identification ANI ) and place a phone call to that caller during voice-mail message playback. For example, assume that John Smith receives a voice mail from his business associate Bill at 404-555-1212. During the call, John decides to invoke the live reply feature and call Bill back. The live reply feature will use Bill's ANI or originating number (404-555-1212) and generate a call to...

Mailbox Login Passwords and PINs

A password and PIN are associated with a user during the user creation in Cisco Unity Express or during an import of CME users. The system administrator has the option to generate a random value, leave the value blank, or specify a value for both the password and PIN. Both the system administrator and the user have the option of changing the password and PIN after the user has been created, as long as the change falls within the defined system defaults set by the administrator. Table 9.11 lists...

Message Management and Playback

After a message has been left in a subscriber's mailbox or a GDM, the recipient has several options on how to treat the message. The following list summarizes these options. Play and restart Allows the subscriber to hear the message content and restart the playback from the beginning of the message at any time during playback. Fast forward and rewind Allow the subscriber to quickly move ahead or backward though a message by 3-second intervals. Skip Allows the subscriber to interrupt playback of...

Message Notifications User Level

After the administrator has enabled and configured message notification on a system-wide basis, all users that require this feature must be given permission to use this option. This requires that the administrator enable message notification for each user on a peruser and per-group basis. At the user level, Cisco Unity Express can be configured to call a phone number or send an e-mail to alert the subscriber of the received message. Each subscriber mailbox supports six device types that can be...

Message Types

Five message types can be found in a subscriber mailbox or GDM Broadcast message A message that is sent to all subscribers on the Cisco Unity Express and potentially all other Cisco Unity Express modules that have been networked together. To send a broadcast message, the subscriber must be a member of the broadcast group. Expired message A message that has been in a mailbox past the retention date. Cisco Unity Express will not delete this message, but will prompt the subscriber to delete or...

Message Waiting Indicator

A message waiting indicator (MWI) provides a mechanism to alert a subscriber that a new message has arrived in a mailbox. To provide this alert, Cisco Unity Express, in conjunction with Cisco Unified CME or Cisco Unified Communications Manager, uses both a red light (located on the handset of an IP phone) and a flashing envelope that appears in the phone display window next to the line button. When a new message arrives in a mailbox, Cisco Unity Express sends an alert to Cisco Unified CME or...

P

Packet voice DSP modules (PVDMs), 227 loss, 289-290 voice, converting, 218-221 paging PAM (pulse-amplitude modulation), 13 parameters, IP phones, 165-170 park slot command, 188 parking calls, 187-188, 190 PBX (private branch exchange) systems, 5, 23 permissions, Cisco Unity Express, 321322 personal settings, configuring, 349 PFO (power failover) feature, 440 physical voice characteristics, configuring, 249-258 PINs (personal identification numbers) PLAR (Private Line Automatic Ringdown),...

Voice Mail with Cisco Unity Express

Chapter 9 Cisco Unity Express Concepts Chapter 10 Cisco Unity Express Configuration What Is Cisco Unity Express This section introduces Cisco Unity Express. It discusses the hardware and software components that make up Cisco Unity Express and the role that Cisco Unity Express plays in Cisco Unified Communications solutions. Features and Functions of Cisco Unity Express Voice Mail This section describes the subscriber and caller voice-mail features that are available on the Cisco Unity Express...

Phone firmware information

The Cisco Unified CME router has been configured with the correct firmware information only for the Cisco 7940, 7960, 7970, and 7971 IP Phone models, so the XMLDefault.cnf.xml file displays only these firmware images. If you were to connect a Cisco IP phone to the network at this point, it would boot, retrieve the correct VLAN information, get its IP address, contact the TFTP server, and download the generic configuration and firmware files. If you were to look at one of these devices, the...

Preconfigured Basic Voice Platform

Built on top of the system's strong out-of-the-box foundation is a preconfigured phone switch with basic services. Without any configuration, a small business can be up and running with a basic phone system in minutes. Simply plugging in telephones and connecting a telephone line to the system's built-in FXO ports will provide a business with all that is necessary to make and receive calls. Even more impressive is the fact that the UC520's out-of-the-box phone configuration can provide basic...

Preconfigured Data Security and VPN Templates

The UC520 chassis, also known as the UC500 Series for Small Business, delivers tremendous value to small businesses right out of the box. The engineering might of an enterprise business is delivered to the small business by simply attaching the UC520 chassis to the small business's network. Many of the features found in enterprise class network equipment and the engineering know-how of large IT organizations have been rolled into this product out of the box. Starting with the system's delivery...

Public Distribution Lists

A public distribution list is a collection of subscribers that is available to all Cisco Unity Express subscribers to use as a distribution list. For example, a public distribution list called everyone is created upon Cisco Unity Express installation. This public distribution list contains all Cisco Unity Express subscribers. Once a message is addressed to this public distribution list, all subscribers defined in Cisco Unity Express will be able to access the message. A public distribution list...

Q

QoS (quality of service), 222, 288-298 questions, final preparation tools, 469-471 Real-time Transport Control Protocol (RTCP), 227-229 Real-time Transport Protocol (RTP), 223, 227-229 bandwidth, calculating codecs, 222-225 voice, video, and data traffic, 289-291 restore factory default command, 403 router-based DHCP servers, IP phones, 92-93 call processing, 272-276 CME, configuring, 90 DHCP, configuring, 139-140 digit manipulation, 277-287 huntstop command, 151 ISR, 310 Requirements, Cisco...

Requirements for Voice Video and Data Traffic

The different traffic types that cross your network every day each have their own QoS requirements. Some of these requirements may be very loose the network would essentially need to fail for the application to stop working. Other requirements may be very tight, requiring high-speed connectivity with low delay for the application to work successfully. This section describes general goals for voice, video, and data. Tip There are a plethora of QoS software utilities available that will analyze...

Review All the Key Topics

Review the most important topics in the chapter, noted with the key topics icon in the outer margin of the page. Table 3.5 lists and describes these key topics and identifies the page number on which each is found. . ' ' ' Table 3.5 Key Topics for Chapter 3 . ' ' ' Table 3.5 Key Topics for Chapter 3 Protocol used by Cisco IP phones to negotiate PoE requirements with a Cisco switch Understanding the 802.3af Power over Ethernet standard Method used to deliver voice VLAN to Cisco IP phones...

Sccp

SCCP (more often called Skinny), the only Cisco-proprietary protocol of the four signaling protocols, is used to control Cisco IP phones and other Cisco endpoint devices (such as the ATA 186 188). Skinny functions as a stimulus response protocol similar to MGCP. Any interaction with a Cisco IP phone (such as lifting the handset, dialing a digit, and so on) causes the IP phone to send Skinny messages to the call processing software, which then responds with a Skinny message instructing the...

SIP Trunking on the UC520

The UC520 is capable of supporting SIP trunks for PSTN connectivity. SIP trunking is configured via the Voice dialog box, similar to configuring FXO ports as you did in the prior section. If you have ever had to configure SIP trunks with a PSTN carrier, you know that in many cases it can be challenging. Although SIP is a standard, the configuration from one carrier to the next can vary widely. From differences in authentication to methods for negotiating codecs, there is a long list of items...

Source IP Address Information

Before the Cisco Unified CME router can respond to the Cisco IP phones it is supporting, it must know what source IP address to use when communicating. This is specified using the command ip source-address from the telephony service configuration mode. Based on the network diagram shown earlier in Figure 4.1, the CME router should use the source IP address 172.16.1.1, which also acts as the default gateway for the Cisco IP phones in the network, as follows CME_Voice(config-telephony) ip...

Step 4 Add It All Together

When you have all the values from the first three steps, you can add them together in a final equation Total_Bandwidth Packet_Size * Packets_Per_Second Now remember, you're after the total bandwidth per call. So, first you need to add together the values from Steps 1-3 to form the packet size. For example, if you were using the G.729 codec with a 20-ms sample size over an Ethernet network, the packet size would be as follows + 20 bytes (voice payload) + 20 bytes (IP header) + 8 bytes (UDP...

Strategies for Exam Preparation

Strategies for exam preparation will vary depending on your existing skills, knowledge, and equipment available. Of course, the ideal exam preparation would consist of building a small voice lab with a Cisco Unified Communications Manager Express 2801 Integrated Services Router and Cisco Unity Express capabilities, a switch, and a few IP phones, which you could then use to work through the configurations as you read through this book. However, not everyone has access to this equipment, so the...

Subscriber Mailboxes

A user mailbox, also referred to as a subscriber mailbox, is typically assigned to one individual. That person personalizes and customizes the user mailbox to meet their individual needs. For example, a subscriber mailbox is created and assigned to John Smith. John's phone is configured to forward to this subscriber mailbox if his extension is busy or he does not answer. When a caller is redirected to John's subscriber mailbox, a greeting is played to the caller. This greeting, created by John,...

The Cisco VoIP Structure

The OSI reference model was designed to create standard methods of connecting and communicating across data networks. In the realm of voice, similar connection models exist to describe voice communications. Cisco has developed a type of model to describe the Unified Communications system, shown in Figure 2.1. Voice Mail Conference Call Call Center Apps 911 Services Apps Unified Communications Manager Express Unified Communications Manager Express Figure 2.1 Cisco Voice Unified Communications...

UC520 24 32 and 48User Use Case

In comparison to the 8- and 16-user UC520 models, which are 1.5U in height, come in a desktop form factor, and utilize an external power supply, the UC520 chassis for 24, 32, and 48 users is a rack-mountable 2U device with an integrated power supply. This chassis is orderable in several preconfigured options based on the number of users to be supported and the PSTN interfaces required. The PSTN options available in these models are scaled for a denser user deployment and include options for FXO...

UC520 8 and 16User Use Case

The UC520 chassis for 8 and 16 users is a 1.5U device with an external power module. This device comes in desktop form factor but can be mounted in a standard 19-inch rack with an add-on rack-mount kit for the chassis and its external power supply. It is order-able in several configurations based on the user count supported (either 8 or 16), whether an integrated wireless AP is desired, and the type of PSTN connectivity desired (either Basic Rate Interface BRI or Foreign Exchange Office FXO )....

Understanding Analog Connections

Topic As mentioned before, analog connections are single-connection circuits, typically used in a small business. A router typically uses Foreign Exchange Station (FXS) analog interfaces to connect to analog devices such as telephones, fax machines, and modems. Foreign Exchange Office (FXO) analog interfaces are used to connect to the PSTN central office (CO) or to a legacy PBX system. The number of incoming FXO connections from the PSTN directly impacts the number of concurrent PSTN phone...

Understanding Router Call Processing and Digit Manipulation

Understanding how the router processes dialed digits is critical to accurately implementing dial peers. There are two primary rules to guide you in your dial peer strategy The most specific destination pattern always wins. Once a match is found, the router immediately processes the call. This section presents examples of these rules in action. Example 8.15 shows the dial peers for a router. Example 8.15 Sample Dial-Peer Configuration 1 dial-peer voice 1 voip destination-pattern 555 1-3 session...

Understanding RTP and RTCP

When you walk into the VoIP world, you encounter a whole new host of protocol standards. Think of the Real-time Transport Protocol (RTP) and Real-time Transport Control Protocol (RTCP) as the protocols of voice. RTP operates at the transport layer of the OSI model on top of UDP. Having two transport layer protocols is a bit odd, but that's exactly what is happening here. UDP provides the services it always does port numbers (that is, session multiplexing) and header checksums (which ensure that...

Understanding the CCA Interface

Becoming familiar with the CCA interface is a key step toward mastering the configuration of the UC500 series. With that in mind, it is necessary to introduce you to the layout of the GUI and its diverse menus and icons. This section first presents the overall layout of the CCA interface at a high level and then briefly introduces the icons and options available to you in the CCA toolbar and feature bar. The best way to get a feel for the way a geographic area is laid out is to go up to a high...

Understanding the Enemy

Before you can deploy QoS successfully, you need to know what you are fighting against. The following are the three enemies of your VoIP traffic Lack of bandwidth Multiple streams of voice and data traffic are competing for a limited amount of bandwidth. Delay The time it takes a packet to move from the original starting point to the final destination delay comes in three forms Fixed delay Delay values that you cannot change for example, it takes a certain amount of time for a packet to travel...

Use a restriction table

Message notification must be enabled at the system level in order for a subscriber to use this feature. The administrator also has the option of which type of message is considered valid to trigger a notification, an urgent message, or all received messages. When a phone call is generated to alert the subscriber of a new received message, the subscriber has the option of logging into the mailbox during the received notification call, if allowed by the administrator. Otherwise, the notification...

User and Group Administration

User and group administration options are located under the Configure menu along the top of the Cisco Unity Express GUI home page. These pages are used to configure attributes for a specific user or group. The following is a list of common administrator tasks that can be accomplished for subscriber accounts and groups Reset passwords and PINs Configure name information Associate a phone Assign a primary extension Assign an E.164 address Assign a language Enable configure message notification...

VLAN Trunking Protocol

Without a doubt, the VLAN Trunking Protocol (VTP) is poorly named. You have already learned about the trunking protocol used today 802.1Q. A better name for VTP might be VLAN Replication Protocol, because that is exactly what it does. As you begin to configure your network to support VLANs, it can become quite tedious to create the same VLANs on every switch in your organization. For example, if you wanted to create VLAN 20, you would have to telnet or SSH to every switch that could have a port...

Voice Call Legs

To accurately configure dial peers, you must first understand the concept of call legs. A call leg represents a connection to or from a voice gateway from a POTS or VoIP source. For example, Figure 8.5 illustrates a voice connection scenario. Figure 8.5 Voice Connection Call Legs As illustrated in Figure 8.5, the phone on the left (extension 1101) makes a call to the phone on the right (extension 2510). For this call to pass through successfully, four call legs must exist Call leg 1 The...

Voice Mail Features

Integrated voice mail and auto-attendant solution with Cisco Unity Express Integration with Cisco Unity Voice Mail and Cisco Unity Unified Messaging, or third-party voice mail integration (H.323, SIP, or dual-tone multifrequency DTMF ) This and other upcoming chapters will discuss many of these features in depth. Figure 4.1 displays the network diagram built in the previous chapter. The Cisco Unified CME router in the upper right of Figure 4.1 provides connectivity to the PSTN (allowing for...

Voice Profile for Internet Mail

Voice Profile for Internet Mail (VPIM) is a feature that allows one voice-mail system to exchange messages with another voice-mail system. In the past, if a subscriber of one voice-mail system wanted to forward a message to a subscriber of another voice-mail system, the sending system had to place a call to the receiving system and play the message in real time. This means that a real-time medium must be available between the two voice-mail systems, such as a public switched telephone network...

Voice View Express

VoiceView Express provides an alternative to TUI access. Unlike the TUI, which requires a subscriber to dial into his or her voice mailbox, VoiceView Express operates as an IP phone service. IP phone services are XML-based web pages that Cisco IP Phones are capable of rendering. If an IP phone has been configured to allow VoiceView Express, a subscriber can log in to their mailbox, check messages, administer messages, send messages, and configure mailbox options, all from the display screen of...

W Z

WAN branch office SBCS deployment, 430-431 wizards, Cisco Unity Express Initialization, 385-391 WLAN controllers, 444 x separators, 152-154 Get online access to 5,000+ Books and Videos FREE TRIAL GET STARTED TODAY www.informit.com safaritrial Only Safari lets you search across thousands of best-selling books from the top technology publishers, including Addison-Wesley Professional, Cisco Press, O'Reilly, Prentice Hall, Que, and Sams. Master the latest tools and techniques In addition to gaining...

Who Should Read This Book

The primary purpose is to tremendously increase your chances of passing the CCNA Voice certification exam. The secondary purpose is to provide the information necessary to deploy a VoIP solution using Cisco Unified Communication Manager Express (CME) or the Smart Business Communications System (SBCS). Cisco's new exam approach provides an avenue to write the book with both a real-world and certification-study approach at the same time. As you read through...

Working with Shared Line and Overlay Options

At this point, you know have the knowledge to assign individual extensions to IP phones using the button command. This gives you the ability to configure a PBX model environment in which each phone has a unique extension number. However, because Cisco designed the CME product line for small-to-midsized business environments, you will eventually encounter the need to configure a keyswitch or hybrid model system that uses shared lines. Configuring a basic shared line in CME is easy. Simply assign...

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Factory defaults, restoring Cisco Unity Express, 403 auto-attendant, 335-341 voice mail, 321-335 communications, 34 licenses, 112 fields Access Code, 455 Digest Authentication, 462 Number of Digits Per Extension, 455 File Transfer Protocol (FTP), 365 files final preparation study plans, 472-473 tools, 469-471 firmware, load files, 122-124 fixed delay, 288 FL-CCME-96 licenses, 112 flash memory, 119 FLP (Fast Link Pulse), 64 Foreign Exchange Office (FXO), 19, 109 ports, 252-253 Foreign Exchange...

Using Digit Manipulation

Digit manipulation is the process of adding or removing digits from a dialed number to help a call reach an intended destination. You have already seen a few of the digit manipulation commands during the discussion of the automatic digit stripping feature of POTS dial peers (such as the no digit-strip and forward-digit commands). Before we look at some practical examples, Table 8.6 shows a list of common digit manipulation commands you can use on a Cisco router. Table 8.6 Common Digit...

Practical Scenario 1 PSTN Failover Using the prefix Command

One of the benefits of using VoIP communication over traditional telephony is the ability to have more than one path to a destination. A common scenario encountered is that shown in Figure 8.12. The organization shown in Figure 8.12 would prefer to use the IP WAN as its primary communication path between Arizona and Texas. However, if the IP WAN should fail, calls between the offices should use the PSTN as their communication path. One of the benefits of using VoIP is the merging of voice...

Memory Tables Answer

Table 5.2 Separators for Use with the button Command Table 5.2 Separators for Use with the button Command Normal ring Line rings normally on incoming call and handset light flash- Call waiting beep, no ring The line ringer is suppressed on incoming call, but the handset light still flashes. Call waiting beeps are allowed during Feature ring The line performs a triple ring on incoming calls. This can be useful as a distinctive ring feature. Monitor mode The line does not ring for incoming calls...

Supporting Auto Registration and Auto Assignment of IP Phones

Since its 4.0 version, CME has supported auto-registration of Cisco IP phones by default. This allows IP phones with no ephone configuration in the CME running configuration to automatically register with the CME router. The CME router does not automatically create an ephone entry in the running configuration however, the registered phones can be verified by using the show ephone command, as shown in Example 5.24. Example 5.24 Auto-Registered Ephone Verification Example 5.24 Auto-Registered...

Command Line Interface Versus Graphical User Interface Administrator Management

Traditionally, the CLI has been the preferred method of accessing and configuring Cisco devices, such as Cisco routers and switches. However, Cisco Unity Express runs on a Linux-based operating system, so the CLI of Cisco Unity Express is vastly different from the CLI of traditional Cisco devices. To use the Cisco Unity Express CLI, the administrator must first open a Telnet session (using a Telnet client) to either the hostname or the IP address of the Cisco ISR router that houses Cisco Unity...

Cisco Unity Express Configuration

This section examines the configuration needed for Cisco Unity Express to communicate with Cisco Unified CME. This includes the final Cisco Unity Express CLI configurations and the Cisco Unity Express web initialization. The CME CLI configurations needed for interoperability between Cisco Unified CME and Cisco Unity Express are also discussed. Cisco Unity Express Post-Installation Configuration After an installation or upgrade of Cisco Unity Express software, the system will run the...

Memory Tables

Table 5.2 Separators for Use with the button Command Separator Character Function Table 5.3 restart Versus reset Commands Command Used For Phone line changes Speed dial changes DHCP scope changes Date and time changes Firmware changes Locale changes Changes to button (services, messages, directories) URLs Voice mail number changes Table 7.2 Audio Codec Bandwidth and MOS Values Table 7.2 Audio Codec Bandwidth and MOS Values Table 8.3 Wildcards You Can Use with the destination-pattern Command...

Configuring Digital Voice Ports

Cisco provides digital T1 and E1 ports in the form of Voice and WAN Interface Cards (VWIC) for routers. These cards offer you the flexibility to configure them for a data connection or a voice connection. Unlike analog interfaces, you must configure digital interfaces before they will operate correctly, because the router does not know the type of network you will be using. As discussed in Chapter 7, Gateway and Trunk Concepts, there are two types of voice network configurations you can use T1...

Understanding the PSTN

Pstn Connections

All the signaling standards and communication methods discussed in the previous section typically focus around the connection to one, massive voice network known as the public switched telephone network (PSTN). If you have ever made a call from a home telephone, you have experienced the results of the traditional telephony network. This network is not unlike many of the data networks of today. Its primary purpose is to establish worldwide pathways allowing people to easily connect, converse,...

Cisco Unity Express Troubleshooting

For Cisco Unity Express to provide voice-mail and auto-attendant services, several pieces need to work together. For this reason, troubleshooting requires that you isolate where the problem exists by asking the questions, What is working and What is not working Asking these questions will help to determine if the root problem exists in one of the following areas Cisco Unity Express configuration This section asks these questions and examines some of the most common issues and troubleshooting...

Private Line Automatic Ringdown

Although not directly related to dial-peer configuration, Private Line Automatic Ringdown (PLAR) configurations rely heavily on existing dial peers to complete a call. Ports configured with PLAR capabilities automatically dial a number as soon as the port detects an off-hook signal. The most obvious use for PLAR configurations is emergency phones in locations such as company elevators or parking garages. The configuration in Example 8.13 designates x1101 (shown in Figure 8.8) as a PLAR...

Configure and Verify 8021Q Trunks

Now that VTP is set, you need to configure the 802.1Q trunks between the switches. Looking back at Figure 3.10, you can see that SwitchA and SwitchB connect on FastEthernet 0 24. To configure trunking on the port, you can use the switchport mode command. This command has a number of parameters, as shown in Example 3.4. Example 3.4 Options Available for the switchport mode Command Example 3.4 Options Available for the switchport mode Command SwitchA(config) interface fastEthernet 0 24...

Where It All Began Analog Connections

Electrical Analog Waveform

In 1877, Thomas Edison created a brilliant device known as a phonograph, shown in Figure 1.1. Figure 1.1 Replica of Edison's Phonograph Figure 1.1 Replica of Edison's Phonograph This device was able to record sounds by pressing a needle into a cylinder covered with tinfoil on a rhythmic basis as a person spoke into a sound collecting horn. The phonograph could then play back this sound by moving the needle at a steady speed back over the indentions made in the tinfoil. This archaic form of...

CCA Telephony Smart Assist Features

Interwoven throughout the CCA tool are several macros that walk you through the process of provisioning devices in an SBCS community. There are macros that assist in deciding several questions What type of roles should a given switch port be assigned. Should spanning tree be turned on or off on this port What should the native VLAN be To someone new to the field of networking, these questions might be a challenge to answer. There are macros for a brand-new wireless SSID and others that help...

Af Power over Ethernet

802.3af PoE is similar to Cisco Inline Power but uses a slightly different detection mecha nism. Rather than using a FLP tone to detect an unpowered PoE device, 802.3af uses a small DC current that is constantly applied to the line. Non-PoE devices are not harmed by this DC current. An 802.3af-capable device will be equipped with a resistor that returns a specific level of resistance to the line. When the switch detects this resistance level, it will know how much power to send to the attached...

Using Cisco AutoQoS

Deploying QoS can be complex (which is why there's a difficult CCVP exam dedicated just to the topic). To help ease the learning curve for QoS, Cisco created a mechanism called AutoQoS, which allows you to enable a variety of QoS mechanisms with very little QoS knowledge. AutoQoS ended up working so well out of the box that many network administrators who have full knowledge of the QoS capabilities and configuration on Cisco devices use it. AutoQoS has moved to this acclaimed status because it...

The Process of Converting Voice to Packets

Harry Nyquist (and many others) created a process that allows equipment to convert analog signals (flowing waveforms) into digital format (1s and 0s). It is important to understand this process as it will guide your configuration of sample sizes, Digital Signal Processor (DSP) resources, and codecs. The origin of the digital conversion process takes us back to the 1920s, a far throw from our VoIP world. The Bell Systems Corporation was trying to find a way to deploy more voice...

Cisco Unity Express Module Comparison

Table 9.3 lists capacity differences between the four Cisco Unity Express hardware platforms. Table 9.3 Cisco Unity Modules and Capabilities Table 9.3 Cisco Unity Modules and Capabilities Voice Ports Simultaneous Voice Sessions Support for a Cisco Unity Express module is dependant upon the model of Cisco ISR it is installed in and the IOS version the router is running. Table 9.4 lists the router support and minimum IOS version for each module. Table 9.4 Router and Minimum IOS Required Table 9.4...

Foreign Exchange Station Ports

FXS ports connect to end stations, that is, typical analog devices such as telephones, fax machines, and modems (shown in Figure 8.1). When you are getting ready to configure your FXS voice ports, the best place to start is to find out what voice ports your router is equipped with. You can do this quickly by using the show voice port summary command, as shown in Example 8.1. Example 8.1 Identifying Voice Ports Using show voice port summary Example 8.1 Identifying Voice Ports Using show voice...