Voice Config

Using Dial Peer Wildcards

As you have seen in the previous few sections, configuring dial peers (and destination patterns) without using wildcards would be extremely time consuming. By far, the most commonly used wildcard is the dot (.), which represents any dialed digit. There are a few other wildcards in addition to this that you will find useful in your configurations. Table 8.3 provides a description for these wildcards. Table 8.3 Wildcards You Can Use with the destination-pattern Command Table 8.3 Wildcards You Can...

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...

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...

Layer 3Multilayer Switching

This final form of inter-VLAN routing uses a router integrated into a switch. This is most often called a Layer 3 or multilayer switch. The concepts are the same as the previous router-on-a-stick design however, the router is now internal to the switch. To facilitate routing within the switch, you must configure switched virtual interfaces (SVIs), as shown in Figure 3.13. SVIs are virtual interfaces supported on Layer 3 switches that route traffic for their assigned VLAN number. As soon as the...

The Cisco Learning Network

Cisco provides a wide variety of CCNA Voice preparation tools at a Cisco Systems website called the Cisco Learning Network. The Cisco Learning Network includes Quick Learning Modules, interviews with Cisco's Portfolio Manager for Voice Certifications, documents that give you a sneak peek at what's included in the Instructor Lead Training Course, and blogs and discussion forums to help you on your way. To use the Cisco Learning Network, you do not need to have a registered login at Cisco.com but...

Where It All Began Analog Connections

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...

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...

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...

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...

Configuring After Hours Call Blocking

In the traditional telephony realm, there have been many recorded incidents of unauthorized phone calls being placed after-hours, when most, if not all, staff has left for the evening. To prevent this, you can implement after-hours call blocking on CME. After-hours call blocking allows you to define ranges of times specified as after-hours intervals. You can then list number patterns that are disallowed during those intervals. If a user places a call during the after-hours time range that...

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...

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...

Unified Voice Using Call Manager Express

Chapter 3 Connecting IP Phones to the LAN Infrastructure Chapter 4 Installing Cisco Unified Communications Manager Express Chapter 5 Basic Cisco CME IP Phone Configuration Chapter 6 Configuring Cisco Unified CME Voice Productivity Features Connecting and Powering Cisco IP Phones To provide a centralized power system, the Cisco IP phones must receive their power from a centralized source using Power over Ethernet (PoE). This section discusses the different options for PoE and the selection...

Configuring Call Transfer

Transferring calls represents another common function in voice networks. To transfer a call, hit the Trnsfer softkey while on an active call. (Note that this is not a typo Trnsfer without the a is correct.) When you do, you will hear another dial tone, at which point you can dial the phone number to which you want to transfer your active call. What happens from there depends on the transfer method configured on the CME router. There are two transfer methods available Consult Consult transfer...

Trunking CME to Other VoIP Systems

As VoIP becomes more popular, businesses will prefer to use interoffice connectivity over data networks rather than the PSTN, due to long-distance cost savings and bandwidth efficiency (VoIP calls can use less bandwidth than traditional PSTN). The singleoffice CME deployment will need to connect with other offices or providers over the VoIP network, as illustrated in Figure 7.6. Cisco Unified Communications Manager System Figure 7.6 Interoffice VoIP Connectivity Cisco Unified Communications...

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...

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...

Do I Know This Already Quiz Qpo

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 3.1 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 3.1 Do I Know This Already Foundation Topics Section-to-Question Mapping Table...

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...

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...

Do I Know This Already Quiz Szi

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...

The Role of Digital Signal Processors

Cisco designed its routers with one primary purpose in mind routing. Moving packets between one location and another is not a very processor-intensive task, thus Cisco routers are not equipped with the kind of memory and processing resources typical PCs are equipped with. For example, from a router's perspective, having 256 MB of RAM is quite a bit. From a PC's perspective, 256 MB will barely help you survive the Microsoft Windows boot process. Moving into the realm of VoIP, the network now...

Configuring Music on Hold

What voice network would be complete without the sound of music coming through handsets on hold everywhere CME has the ability to stream Music on Hold (MoH) from specified WAV or AU audio files that you copy to the flash memory of the router. CME can stream this audio either in multiple unicast streams (which is more resource intensive) or in a single multicast stream (which is less resource intensive, but requires a multicast network configuration). In addition, CME can stream the MoH using...

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...

Configuring Paging

Paging is similar to the intercom concept however, it provides only a one-way automatic path for communication. This is useful to allow broadcast messages, such as emergency notifications or to notify employees of holding calls. The CME paging system works by designating an ephone-dn as a paging number. Calls to the DN of this ephone-dn will broadcast to the IP phones that you have assigned to this paging group. Figure 6.8 illustrates this concept. Paging Group 80 Paging Group 81 Figure 6.8...

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...

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...

Understanding and Configuring EphoneDNs

An ephone-dn in its simplest form is just a directory number that can be assigned to one or more buttons on one or more Cisco IP phones. You can configure each ephone-dn you create as either a single- or dual-line mode ephone-dn. Here's the difference Single-line ephone-dn In single-line mode, the ephone-dn is only able to make or receive one call at a time. If a call arrives on an ephone-dn where there is already an active call, the caller will receive a busy signal. Dual-line ephone-dn In...

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...

Installing Unified CME on a Cisco Router

One advantage of Cisco IOS is the ease of installation and upgradability. To perform an IOS installation or upgrade, you can set up a TFTP server on your PC, download IOS from Cisco.com, and then enter a command similar to the following Assuming your TFTP server is working correctly and assigned the IP address 172.16.2.5, the single BIN IOS file would copy over. Once you reboot the router, you would be running the new IOS version. Installing Cisco Unified CME is not quite as simple. Rather than...

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...

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...

Practical Scenario 4 Using Translation Profiles

The digit manipulation commands discussed thus far allow you to perform minor translations to a number. For example, you could add some digits using the prefix command or ensure digits do or do not get stripped with the forward-digit command. The num-exp command allows you to make the biggest changes of all, but these changes are applied globally to the router, which may not give you the flexibility all situations require. Translation profiles are useful to address these needs. If you find...

Understanding the PSTN

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,...

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...

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...

Setting the Clock of a Cisco Device with NTP

The final task to prepare the network infrastructure to support a Cisco VoIP network is to set the time. Having an accurate time on Cisco devices is important for many reasons. Here is a quick list of just some of the reasons why you want an accurate clock on your network devices Allows Cisco IP phones to display the correct date and time to your users Assigns correct date and time to voice-mail tags Gives accurate times on Call Detail Records (CDRs), which are used to track calls on the...

Additional Applications

Many applications exist in addition to the three core applications just mentioned. The following are brief descriptions of the most common additional applications that corporations install in their VoIP environments Cisco Unified MeetingPlace Provides a multimedia conference solution that gives you the capability to conference voice, video, and data into a single conference call. For example, multiple offices could participate in a conference call using IP phones, live video feeds, and instant...

Interactive Voice Response Auto Attendant

IVR provides prompt and collect features, meaning it can play a recorded message to a user and request that the user press a key in response. These types of systems can be used to provide a variety of information to callers. For example, a bank could use an IVR system to provide balances or transfer options for callers through an automated system. The most popular use of IVR is an auto-attendant application. An auto attendant can allow callers to direct themselves to the correct person or...

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...

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...

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...

Configuring CDRs and Call Accounting

Who made that call That question could arise for many reasons. Perhaps the entire police and fire departments arrive at the front door of your company because of an emergency call originating from your business. Perhaps management is reviewing the recent long distance bill and came across an international call to Aruba that was four hours in length. Whatever the reason, you can find the answer by looking through the archived Call Detail Records (CDRs), as long as you have configured the CME...

Example 615 The show logging Command Output

Syslog logging enabled 12 messages dropped, 1 messages rate-limited, 0 flushes, 0 overruns, xml disabled, filtering disabled Console logging level debugging, 168 messages logged, xml disabled, filtering disabled Jun 18 01 57 08.987 SYS-5-CONFIG_I Configured from console by Jeremy on vty0 172.30.3.28 Jun 18 01 57 48.640 VOIPAAA-5-VOIP_CALL_HISTORY CallLegType 1, ConnectionId B71427FB3C1011DD80EEB6A01B061E9, SetupTime 18 57 17.970 ARIZONA Tue Jun 17 2008, PeerAddress 1503, PeerSubAddress ,...

Do I Know This Already Quiz Lbi

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 10.1 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 10.1 Do I Know This Already Foundation Topics Section-to-Question Mapping...

Cisco Unified Communications 500 Series

When you think of the UC500 series (shown in Figure 2.2), think key system replacement. Figure 2.2 Cisco Unified Communications 500 Series with Eight-Port Expansion Switch Figure 2.2 Cisco Unified Communications 500 Series with Eight-Port Expansion Switch This small box is designed to fit right into the small business market as an all-in-one product. I (Jeremy) have to admit when I first saw this product, my mouth dropped open. It is the perfect data and voice product combination. Note While...

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...

Cisco Unified Communications Manager Express

When businesses outgrow the 48-phone limitation of the UC500 system, the next step is to move into a Cisco Unified CME system, which is scalable to 250 IP phones, depending on the router platform on which you choose to run CME. Table 2.2 breaks down current CME platform limitations. Table 2.2 Unified Communications Manager Express Platform Limitations Table 2.2 Unified Communications Manager Express Platform Limitations Cisco 1861 Integrated Services Router Cisco IAD2430 Integrated Access...

Cisco Unified Communications Manager Express Overview

When Cisco first entered the IP telephony space, it did so with its flagship CallManager product line. CallManager was a dedicated server or servers that was a custom fit for medium to large businesses deploying thousands of phones at a single site or multiple locations. Although CallManager (now known as Cisco Unified Communications Manager) provided a cost-effective solution for these larger businesses, the startup price was far beyond the range that was affordable by small businesses. As the...

Understanding Internet Telephony Service Providers

Since a new generation of VoIP communication has arrived, a new generation of telephony service provider has emerged. Internet telephony service providers (ITSP) allow your business to connect to the PSTN using VoIP communication, as shown in Figure 7.9. By allowing you to use VoIP trunks to the PSTN, the ITSP is able to provide cheaper rates (per call and long distance) than traditional TSPs. Using an ISTP also provides the benefit of bundling both your voice and data connection over a single,...

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...

CCNA Voice Official Exam Certification Guide

Jeremy Cioara, CCIE No. 11727 Michael J. Cavanaugh, CCIE No. 4516 Kris A. Krake, CCIE No. 10229 Copyright 2009 Cisco Systems, Inc. Cisco Press logo is a trademark of Cisco Systems, Inc. Published by Cisco Press 800 East 96th Street Indianapolis, IN 46240 USA All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written...

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...

About the Technical Reviewers

Alex Hannah is a Cisco Certified Systems Instructor for Global Knowledge USA, specializing and teaching the Advanced IP Communications product line. He is president of Hannah Technologies, LLC, a Richmond, Virginia-based Cisco consulting firm specializing in Cisco Advanced IP Communications and application development using Microsoft technologies. He holds a bachelor's degree in Information Systems from Virginia Commonwealth University.

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...

Internet Low Bitrate Codec One Codec to Rule Them All

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...

Graphical User Interface Subscriber Management

Like the administrator's Cisco Unity Express GUI, subscribers can open Microsoft Internet Explorer, version 6 or higher, and type http CUE-Server, where CUE-Server is either the IP address of Cisco Unity Express or a hostname that can be resolved to an IP address. The subscriber will enter their username and password to log in to the GUI. Note The password entered here is the password that is configured in Cisco Unity Express, not the PIN. The password is used for GUI authentication, while the...

Configuring Call Park

Typically, when you place a call on hold, you can retrieve the call only from the original phone where you placed the call on hold. Shared-line systems bend the rules a little by allowing you to retrieve the call from any phone with the same shared line assignment. The call park feature takes this one step further by allowing you to retrieve the call from any phone in the organization. Call park parks the caller on hold at an extension rather than on a specific line. Any IP phone that is able...

VLAN Concepts

When VLANs were introduced a number of years ago, the concept was so radical and beneficial that it was immediately adopted into the industry. Nowadays, it is rare to find any reasonably sized network that is not using VLANs in some way. VLANs allow you to break up switched environments into multiple broadcast domains. Here is the basic summary of a VLAN A VLAN A Broadcast Domain An IP Subnet There are many benefits to using VLANs in an organization, some of which include the following...

Associating Ephones and EphoneDNs

Linking ephones and ephone-dns is probably the most confusing section of the CME configuration because there are so many options. You can assign ephone-dns by using the button command from ephone configuration mode. The basic syntax of this command is as follows button < physical button> < separator> < ephone-dn> Example 5.8 demonstrates the basic use of the button command. Example 5.8 Assigning Ephone-DN 2 to Button 1 on Ephone 1 CME_Voice(config) ephone 1 CME_Voice(config-ephone)...

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...

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 )....

Configuring Call Pickup

Michael works in the sales department at Widget Things, Inc. Being the newest member to the group, he works the late shift, covering calls from 10 30 a.m. to 7 30 p.m. Around 6 00 p.m., the last coworker leaves and Michael handles all the incoming calls alone. Unfortunately, many of Widget Things' customers have the direct contact information for other sales employees, so a typical evening for Michael consists of running around answering phone calls coming in on the IP phones of the five other...

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...

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...

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...

Cisco Unity Express Software

The Cisco Unity Express module comes from Cisco preloaded with a Linux operating system and the currently shipping version of Cisco Unity Express software. The Linux operating system is not field configurable. The Cisco Unity Express software, on the other hand, can be upgraded in the field. Cisco Unity Express software can be broken down into three different categories Cisco Unity Express voice-mail and auto-attendant software Cisco Unity Express optional IVR software Cisco Unity Express PC...

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...

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...

Mailbox Storage

Mailbox storage defines how much of the Cisco Unity Express storage space can be used to hold received messages. Cisco Unity Express breaks storage down into two categories overall storage space for Cisco Unity Express, and the space allocated on a per-user basis. The overall Cisco Unity Express storage space is defined in minutes of recorded voice and is determined by the hardware platform of Cisco Unity Express. For example, an NM-CUE has 6000 minutes of storage space available to the sum of...

Cisco Unity Express Licensing

Cisco Unity Express licensing is determined by three factors The IP PBX type that will connect to Cisco Unity Express The Cisco Unity Express module type the license file will be loaded on The number of mailboxes required for the site that the Cisco Unity Express will be serving Table 9.8 lists the Cisco Unity Express licensing available when connecting to Cisco Unified CME. Table 9.8 License Packages for Cisco Unified Communications Manager Express Table 9.8 License Packages for Cisco Unified...

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...

Holiday prompt

The Welcome prompt is the first prompt a caller hears when connected to the AA script. This is typically the message that the business wants the caller to hear regardless of the day or time the call is received. For example, this message may be personalized to state Thank you for calling the ABC Company, the worldwide leader in widget manufacturing. By default, this prompt states Welcome to the automated attendant. After the Welcome prompt has been played, Cisco Unity Express consults the...

Practical Scenario 3 Specific POTS Lines for Emergency Calls

As organizations move more to VoIP connections, they are finding cost-saving benefits by eliminating traditional telephony connections at remote offices in favor of centralizing all PSTN calls (and toll charges) at a central site. Figure 8.14 illustrates this type of network design. This type of call routing allows an organization to get higher call volume from a single location, which typically allows the organization to negotiate cheaper long-distance rates with its PSTN carrier. Note Some...

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...

The Cisco Mobility Express System

In the SBCS suite, the needs for wireless voice and for wireless data connectivity are addressed with the Cisco 521 Wireless Express Access Point. Depending on the wireless coverage and manageability requirements of a particular design, the system can be managed and extended with the Cisco 526 Wireless Express Mobility Controller. As indicated earlier in this chapter, basic wireless requirements in the SBCS suite can be addressed by ordering the integrated wireless option in the UC520 8- and-16...

Figure 129 CCA Feature Bar

The five main menus in the feature bar, listed next, group together related tasks that you, as an administrator, will perform in your day-to-day activities Setup This set of features is used to do basic configuration for the members of the SBCS family and to enable them to be managed by the CCA tool. Configure This set of features is used to manage individual ports and devices. Monitor This feature set includes most of the tools to monitor the utilization and health of the system....

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...

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...

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...

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...

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...

Network Troubleshooting with the CCA Tool

From time to time, a network will experience problems. The CCA tool provides the means for you to troubleshoot such problems. The tools available are found in one of three places within the CCA interface the Event Notification dialog box, the Health dialog box, or the Troubleshoot menu of the feature bar. Most commonly, your process of troubleshooting will take you to the Event Notification dialog box first. This dialog box is activated by clicking the Event Notification icon in the toolbar...

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...

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,...

Cisco 791479157916 Expansion Modules

You can use the Cisco 791X expansion modules to provide additional lines to the 796X and 797X IP Phone series. The modules add up to 15 expansion lines (7914) or 24 expansion lines (7915 7916) with each module. You can add up to two expansion modules per IP phone. Figure 2.11 shows a 7916 expansion module attached to a 7970G Cisco IP Phone. Figure 2.11 Cisco 7970G with 7916 Expansion Module Figure 2.11 Cisco 7970G with 7916 Expansion Module

Powering the IP Phone Using a Power Patch Panel or Coupler

Many companies already have a significant investment in their switched network. To upgrade all switches to support PoE would be a significant expense. These organizations may choose to install intermediary devices, such as a patch panel, that are able to inject PoE on the line. The physical layout for this design is demonstrated in Figure 3.4. Figure 3.4 Design for Power Patch Panels or Inline Couplers Figure 3.4 Design for Power Patch Panels or Inline Couplers By using the power patch panel,...