Cisco Unified Communications Manager Architecture

A Cisco Unified Communications deployment relies on Cisco Unified Communications Manager (CUCM) (formerly known as Cisco Unified CallManager) for its call-processing and call-routing functions. Understanding the role that CUCM plays in a converged network from a system, software, and hardware perspective is necessary for successfully installing and configuring CUCM. This lesson introduces and describes the role, architecture, hardware and software requirements, and the licensing model of the...

Example Basic IP Telephony Call

Figure 1-4 illustrates a user at phone A placing a call to phone B. At the beginning of a call, a user at IP phone A picks up the handset, and a message is sent to CUCM letting CUCM know that the device has gone off-hook. CUCM responds to this stimulus by replying with a message that tells the device to play the dial tone file that is stored in the flash memory of the phone. The user at phone A hears the dial tone and begins dialing the phone number of phone B. SCCP phones send their digits to...

License Unit Reporting

License unit reports can be run to verify the number of licenses consumed and available for future expansion. Use the following procedure to generate a license unit report Step 1 Choose System > License > License Unit Report. Step 2 The License Unit Report window displays as shown in Figure 1-11. This window displays the number of phone licenses and number of node licenses, in these categories License files (CCMxxxxx.lic) are uploaded to the publisher (license server). To upload a license...

Chapter Summary

The following list summarizes the key points that were discussed in this chapter In many call scenarios, it is required to manipulate the calling and called (dialed) string before routing the call. CUCM digit manipulation configuration main elements are external phone number mask, digit prefix and stripping, transformation masks, translation pattern, and significant digits. A CUCM external phone number mask designates the fully qualified E.164 address for the user's extension and is used to...

Call Park

The call park feature enables a user to park a call so that it can be retrieved from another telephone in the CUCM cluster. An active call can be parked to a call park extension by pressing the Park softkey. When the Park key is pressed, the LCD screen displays the call park number for 10 seconds by default. This phone number can be dialed from another phone in the system, thus redirecting the call. The call park feature works within a CUCM cluster. Each CUCM in a cluster must have its own call...

CUCM Hardware Software and Clustering

CUCM Release 6.0 is a complete hardware and software solution that works as a network appliance. A network appliance is a closed system that supports only Cisco-authorized applications and utilities. Goals of the appliance model are to simplify the installation and upgrade of the system and to hide the underlying operating system. An appliance-based model makes it possible for an administrator to install, implement, and manage a CUCM server without requiring knowledge of or having access to the...

CUVA Installation

CUVA installation includes the following steps Step 1 Verify hardware requirements. Step 2 Verify software requirements. Step 3 Install CUVA software and hardware. Table 19-3 displays the recommended installation requirements to install CUVA. Table 19-3 CUVA Installation Requirements Table 19-3 CUVA Installation Requirements 1.9 GHz or higher Pentium IV or compatible processor (Streaming SIMD Extensions support required) 2.4 GHz or higher Pentium IV or compatible processor (Streaming SIMD...

Private Line Automatic Ringdown

Private line automatic ringdown (PLAR) is used when a phone should dial a predefined number as soon as the phone goes off-hook. PLAR is typically used with button-free security phones in elevators and stairways. Implement PLAR in CUCM by following these steps Step 1 Configure a translation pattern where the pattern is empty (null string pattern), and put it into a partition. Step 2 Configure the number to be dialed by the PLAR-enabled phone in the called-party transformation mask of the...

CUVA Verification Tools

Verify the association of CUVA and the IP phone or Cisco IP Communicator from the status displayed on the CUVA application window. When the CUVA application is started, it will show icons for the Cisco VT Camera in the middle, Cisco IP Communicator on the left, and an IP phone on the right. A successful CAST association is indicated by a green line, and an unsuccessful connection is indicated by a broken red line. Figure 19-8 shows an example of a successful and unsuccessful connection. The...

Call Coverage

Call coverage is part of the dial plan. It ensures that all incoming calls are answered. The following call-coverage features are typically implemented for individuals Call forwarding If the called phone does not answer the call, the call should be forwarded to another phone or voice mail. Shared lines A shared line is a directory number (DN) that is assigned to more than one device, allowing the call to be accepted on more than one phone. Call pickup Call pickup allows a call that is ringing...

References

For additional information, refer to these resources CUCM Features and Services Guide, Release 6.0(1) http www.cisco.com en US CUCM Administration Guide, Release 6.0(1) http www.cisco.com en US docs Cisco Unified Communications SRND Based on CUCM 6.x http Figure 17-18 SIP Trunk Presence Group I- Destination Address is an SRV Destination Port* MTP Preferred Originating Codec* Presence Group* SIP Trunk Security Profile* Rerouting Calling Search Space Out-Of-Dialog Refer Calling Search Space...

Lightweight Directory Access Protocol

LDAPv3 directories typically store data that does not change often, such as employee information and user privileges on the corporate network. The information is stored in a database that is optimized for a high number of read and search requests and occasional write and update requests. Integration between voice applications and a corporate LDAPv3 directory is a common task for many enterprise IT organizations. LDAPv3 directory services are leveraged to enable user lookups from IP phones....

CUCM Cluster

Clustering allows the network to scale to several thousands of endpoints, provides redundancy in case of network or server failure, and provides a central point of administration. Figure 1-5 displays a Publisher database synchronizing database components to all the other servers in the cluster. The servers running the CCM.exe process are performing call processing, and the other servers are taking on special roles described in later chapters of this book. CUCM clustering creates scalability by...

Presence Enabled Speed Dials and Lists

Users are more mobile than ever in the current working environment. Users work from home, the office, airport lounges, and so on. To communicate with others efficiently, it is helpful to know their current availability. How can the user be reached (phone, instant messaging IM , or e-mail), and are they ready to communicate Cisco Unified Communications solutions feature presence information that identifies user availability, preference, and status. This level of presence information requires a...

Cisco LAN Switches

Cisco Catalyst switches can provide three primary features to assist the IP telephony In-line power In-line power capabilities allow a Cisco Catalyst switch to send power over Ethernet to a Cisco IP Phone or other in-line power-compatible devices (wireless access points) without the need for an external power supply. In-line power is commonly referred to as Power over Ethernet (PoE). There are currently two popular types of PoE delivery used in Cisco IP Telephony (CIPT). IEEE 802.3af-compliant...

And Vanity Numbers

911 is a single number to call for medical, fire, and police emergencies in the United States and Canada. Calls to 911 are routed to a public safety answering point (PSAP). The PSAP is the first-tier triage call center for emergency calls. PSAP operators dispatch medical, fire, and police resources as necessary. Emergency calls have to be sent to a local PSAP through the local gateway. In a multisite deployment, all emergency calls are placed to the same number, but they need to be routed...

Endpoint Configuration Tools and Elements Overview

There are four ways to add IP phones to CUCM Bulk Administration tool (BAT) Tool for Auto-Registered Phone Support (TAPS) Auto registration allows Cisco IP Phones to be added to CUCM without the administrator having to first compile a list of MAC address for the endpoints. Auto registration automatically populates phone configuration data, so it is impossible to migrate phone settings from the existing phone system. Configuration changes can be made to the phone using CUCM Administration. CUCM...

Translation Patterns

CUCM uses translation patterns to manipulate digits before routing a call. The translation pattern can also be used to block certain patterns. Translation patterns are useful to manipulate the caller ID of incoming PSTN calls to allow the users to quickly return phone calls using the redial and missed-calls functionality. The caller ID from the PSTN may include only 10 digits while the system requires 11 digits prefixed with an access code of 9 to properly route outgoing calls. The translation...

Calling Privileges

Calling privileges control the available components of a call-routing database that are accessible to an endpoint. The primary application is the implementation of CoS. CoS is usually used to control telephony charges by blocking costly service numbers. Many organizations block international calls for most users and restrict long-distance dialing on common-area phones. CoS is also used to protect the privacy of some users. Executive managers may allow only those calls that have gone through...

CUCM Single Site Deployment

As illustrated in Figure 2-1, the Single-Site model for CUCM consists of a CUCM cluster located at a single site, or metropolitan-area network (MAN), with no telephony services provided over a WAN. All CUCM servers, applications, and digital signal processor (DSP) resources are located in the same physical location. An enterprise would typically deploy the Single-Site model over a LAN or MAN, which carries the voice traffic within the site. In this model, calls beyond the LAN or MAN use the...

Hold Reversion

When a call is put on hold with the Hold softkey and the duration exceeds the holdreversion timeout limit, CUCM generates alerts to the phone to remind the user to handle the call. Hold reversion is illustrated in Figure 16-8. Initial Call ----Hold Reversion -Second Call Initial Call ----Hold Reversion -Second Call The types of alerts that are generated at the phone for reverted calls depend on the capabilities of the phone device. CUCM provides the following alerts when the Hold Reversion...

Uniform OnNet Dial Plan Example

A dial plan should be designed so that all extensions within the system are reached in a uniform way. A fixed number of digits is used to reach a given extension from any on-net origination point. Uniform dialing is desirable because of the simplicity it presents to users. A user does not have to remember different ways to dial a number when calling from various locations. Table 11-1 is an example of a four-digit uniform on-net dial plan. Various sites in Table 11-1 were assigned numbers in the...

Call Pickup

The purpose of the call pickup feature is to enable a group of users who are seated near each other to cover incoming calls as a group. When a member of the group receives a call and is not available to answer it, any other member of the group can pick up the call from his own phone by using the PickUp softkey. Call pickup Enables users to pick up incoming calls on any telephone within their own group. When the users press the PickUp softkey, CUCM automatically dials the appropriate call-pickup...

Transformation Examples

Multiple transformations might take place when placing a phone call. Using external phone number masks instructs the call-routing component to use the external phone number of a calling station rather than its DN for caller ID information. The external phone number mask is applied on an individual line basis through the Directory Number Configuration screen on the device. The route pattern matched for an outgoing call can apply another set of calling-party transformations before extending the...

IP Phone Services

Typical IP phone services that might be supplied to a phone include weather information, stock quotes, and news. Deployment of Cisco Unified IP Phone services occurs using the HTTP protocol from standard web servers, such as the Apache web services. A user can access a service from the supported phone model in two ways. The user can press the Services button, or the user can use a preconfigured phone button. When the user presses the Services button, the phone uses its HTTP client to load a...

Cisco Unity Configuration

Cisco Unity SCCP integration requires the following tasks Step 2 Start the Integration wizard. Step 3 Create a new SCCP CUCM integration. Locate and start the Cisco Unity Telephony Integration Manager (UTIM) on the Cisco Unity server. This program is part of the Cisco Unified Integration and Configuration Assistant (CUICA) wizard, but the program can also be launched by clicking the Manage Integrations icon in the Unity program group. CUICA is shown in Figure 18-17. Click the Create Integration...

GB hard disk

Minimum requirements for CUCM 6 are the same as for Cisco Unified CallManager Version 5, but only specific MCS models are approved. The 7800 series servers are available in the -H or -I variants. -H stands for Hewlett-Packard, and -I stands for IBM server platforms. The 7825 server is a 19-inch or 23-inch rack-mountable server that provides a single SATA hard drive and one power supply. The 7835 server improves reliability and performance by including hot-swappable SCSI hard drives, hardware...

Cisco Unity Overview

Cisco Unity is a voice messaging system that does voice mail, Unified Messaging, and fax integration. Cisco Unity also has text to speech (TTS) capabilities that allow e-mail and faxes (requires third-party fax server) to be listened to over the telephone. Voice messages can be checked over e-mail with a Unified Messaging license on Cisco Unity. Cisco Unity integrates with IBM Lotus Notes and Microsoft Outlook e-mail clients to create a unified inbox. A unified inbox consists of e-mail, voice...

License File Request Process

Figure 1-8 displays the license file request process, which includes these steps 1. The customer places an order for CUCM. 2. The manufacturing database scans the Product Authorization Key (PAK) and records it against the sales order. 3. The product (CD or paper claim certificate) is physically delivered to the customer. 4. The customer registers the product at http www.cisco.com go license or a public web page and provides the MAC address of the publisher device that will become the license...

Call Hunting

CUCM call-hunting implementation is composed of the following components Phone DNs or voice-mail ports are assigned to line groups. Line groups are assigned to hunt lists. A hunt list can have one or more line groups. Line group hunt options and distribution algorithms can be specified to define how call hunting should be performed for the members of the line group. Hunt lists are assigned to hunt pilots. A hunt list is an ordered list of one or more line groups. Hunt pilots are the numbers...

Cisco IP Phones Boot Sequence

The Cisco IP Phone has a standard startup process consisting of several steps. The steps are illustrated in Figure 7-2 and outlined as follows Step 1 PoE The Cisco IP Phone obtains power from the switch. The switch continuously sends a small voltage on the transmit pins. The voltage sent by the switch is then looped back in hardware from the IP phone back to the switch's receiving pins. The switch has now detected an in-line power-requiring device, and the Cisco switch generates the port's...

Conferencing

The CUCM supports hardware and software conference bridges. The software-based conference bridge, implemented as a CUCM service, supports only conferences, using a single audio codec (G.711 or Cisco wideband). Some hardware conference bridges can support multiple low bit-rate (LBR) stream types such as G.729, Global System for Mobile Communications (GSM), G.723, and iLBC. A mixed-mode conference is a conference in which multiple audio codecs are used for different audio streams. A mixed-mode...

Cisco Unity Subscriber Configuration

Each phone user who needs a mailbox in Cisco Unity requires a subscriber account created in the Cisco Unity System Administrator (SA). To add a subscriber, follow these steps Step 1 Navigate to the Cisco Unity Admin web page and log in. Step 2 Click the Subscriber hyperlink, which is displayed in Figure 18-25. Step 3 Click the + sign to add a new subscriber. Step 4 Configure the following settings Last Name, Display Name and Extension, and so on. Step 5 Click the floppy disk icon to save. The...

CUCM Licensing

Licensing is implemented in CUCM beginning with Release 5.0. Administration of license management is done through CUCM GUI administration, allowing accurate tracking of active device registrations compared to the license units that have been purchased. License enforcement occurs at the time of phone provisioning and CUCM service activation. The publisher is the only licensing server. The licensing server is the logical component that keeps track of the licenses purchased and the licenses used....

Presence Configuration

The CUCM Presence configuration procedure includes the following three steps Step 1 Enable Presence-enabled speed dials a. Customize phone button templates to include Presence-enabled speed dial buttons. b. Apply phone button templates to phones. c. Configure Presence-enabled speed dial buttons. d. Apply subscribe calling search space to phones. Step 2 Enable Presence-enabled call lists. Enable the BLF for Call Lists enterprise parameter Step 3 Allow Presence subscriptions through SIP trunks....

Presence Policies

CUCM Presence has multiple ways of limiting Presence information. Presence-enabled speed dials are configured statically by the CUCM administrator and cannot be configured or modified directly by a user. The administrator maintains control of the monitored Presence entities for each watcher. Subscribe calling search spaces (CSS) also apply to Presence-enabled speed dials. Access control for Presence-enabled call and directory lists can be provided by partitions and subscribe CSSs and by...

Do Not Disturb

The Do Not Disturb (DND) feature enables a user to turn off the ringer for an incoming call. The default ringer settings beep and flash. DND allows users to reconfigure the ringer settings when the DND softkey is pressed (beep, ring, both, or neither). This DND softkey is pressed directly on the Cisco Unified IP Phone and configured via the DND options from the User Options web pages. When DND is enabled, all new incoming calls with normal priority honor the DND settings for the device....

Partitions and Calling Search Spaces

Cucm Partition And Css

A partition is a group of dialable patterns with similar accessibility. Any dialable pattern can be assigned to a partition. All phone numbers are in the null partition by default, and all devices have access to the null partition. As soon as a phone number is assigned to a different partition, the devices in the network will not be able to access that phone number without the configuration of a calling search space (CSS). A CSS defines which partitions are accessible to a particular device. A...

Timeof Day Call Routing

Time-of-day routing can be implemented in CUCM by applying time and date attributes to partitions using time schedules and time periods. Time periods define time ranges or dates and are grouped into time schedules. Time schedules are then assigned to partitions. A CSS that includes a partition that is associated with a time schedule has access only to the partition if the current date and time match the time and date information specified in the time schedule that is associated with the...

Media Gateway Control Protocol Gateways

MGCP is a plain-text protocol used by call-control devices to manage IP telephony gateways. MGCP (IETF RFC 2705) is a master slave protocol that allows a call-control device (CUCM) to take control of a specific port on a gateway. MGCP has the advantage of centralized gateway administration and provides for scalable IP telephony solutions. CUCM controls the MGCP state of the configured ports of the gateway. MGCP allows centralized administration of the dial plan and gives CUCM per-port control...

CUCM Transformation Masks

Dialing transformations allow the call-routing component to modify either the calling (initiator) or called (destination) digits of a call. Transformations that modify the calling number (automatic number identification, ANI) are calling-party transformations transformations that modify the dialed digits (dialed number identification system, DNIS) are called-party transformations. Transformation masks use mask operations that allow the suppression of leading digits, the modification or...

Class of Service Approaches

CoS applications in CUCM can be summarized as two distinctly separate implementations the traditional approach and the line-device approach. This section investigates the difference between these two approaches and explains the advantages of using the linedevice approach. Figure 13-22 shows a simple single-site CoS deployment with four distinct classes of service. Four partitions and four CSSs have been created. The route patterns for each call type have been put into their respective...

Route Filters

Route filters can be used only with the route pattern to match certain elements or special numbers of a numbering plan. A route filter applied to a pattern not containing the wildcard is ignored. The logical expression entered with the route filter can be up to 1024 characters, excluding the Not-Selected fields. For large-scale deployments, use explicit route patterns rather than the wildcard and route filters. This practice also facilitates management and troubleshooting because all patterns...

Multisite WAN with Centralized Call Processing

The Multisite WAN with Centralized Call Processing model consists of a centralized CUCM cluster that provides services for many sites and uses the IP WAN to transport IP telephony traffic between the sites. The IP WAN also carries call-control signaling between the CUCM cluster at the central site and the IP phones at the remote sites. Figure 2-2 illustrates a typical centralized call-processing deployment, with a CUCM cluster at the central site and an IP WAN with QoS enabled to connect all...

Media Resource Support

CUCM offers software-based media resources. Start the IP Voice Media Streaming application to activate the following The following media resources are available only in hardware Audio conferencing and MTP media resources can also be offered by hardware media resources. MoH is a special case. Because of the potential WAN bandwidth utilization of MoH, the multicast streams of the server are normally scoped at the headquarters. Survivable Remote Site Telephony (SRST) can stream one media resource...

MGCP Configuration Server

When you are using the Configuration Server feature, the gateway- and interface-specific MGCP configuration commands are provided by CUCM in the form of an Extensible Markup Language (XML) configuration file that is downloaded by the Cisco IOS gateway from the CUCM TFTP server. This is the recommended approach to integrate Cisco IOS MGCP gateways with CUCM. The Cisco IOS gateway dynamically loads the necessary MGCP configuration commands from the XML file downloaded from the TFTP server. When...

Endpoint Basic Configuration Elements

There are mandatory and optional configuration details. It is advisable to never use any of the default mandatory items. Three examples of this are the call manager group, region, and location. The device pool and region do not need to be specified, but they are mandatory. The default values will not work in most environments, but they can be modified. Instead of modifying the default values, these elements can be copied, renamed, and reconfigured. Rename the elements in a way that allows the...

Network and Feature Services

A CUCM cluster can consist of up to 20 servers. Each server can fulfill different tasks, such as running a TFTP or DHCP server, being the database publisher, processing calls, providing media resources, and so on. Depending on the usage of a server, different services have to be activated on the system. There are two types of services on CUCM servers Network services Network services are automatically activated and are required for the operation of the server. Network services cannot be...

CUCM User Interface Options

CUCM 5.x and 6.x operate on an appliance model where access to the system is possible only through CUCM GUIs and the CUCM CLI. The available interfaces are shown in Figure 4-1 and described in Table 4-1. CUCM Administration and User Interface Options l lil l> CUCM User Options CISCO For Cisco Unified Communications Solutions 11111111 Cisco Unified Serviceability CISCO For Cisco Unified Communications Solutions 11111111 CUCM Administration CISCO For Cisco Unified Communications Solutions...

Clustering over the IP WAN

Cluster Cisco Cucm Wan

Cisco supports CUCM clusters over a WAN. Characteristics include the following Applications and CUCM of the same cluster distributed over the IP WAN. IP WAN carries intracluster server communication and signaling. Two to four sites for local failover (two CUCM servers per site) Up to eight sites for remote failover across the IP WAN (one CUCM server per site) The cluster design, as illustrated in Figure 2-4, is useful for customers who require more functionality than the limited feature set...

Music on Hold

CUCM may be configured to provide MoH. The MoH feature has two main requirements An MoH server must provide the MoH audio stream sources. CUCM must be configured to use the MoH streams provided by the MoH server when a call is placed on hold. The integrated MoH feature enables users to place on-net and off-net callers on hold with music instead of the default one on hold. The MoH source makes music available to any on-net or off-net device placed on hold. On-net devices include Cisco IP Phones...

Hardening Cisco IP Phones

The IP phone is a target for attacks, just like all other components of the network. IP phone endpoints should be protected in a similar manner to servers in the environment. IP phones have default settings that make them vulnerable to attacks. There are several options available to harden IP phones and thus protect them against various attacks and infiltration methods. The product-specific configuration parameters of Cisco IP Phones are set by default to achieve the greatest functionality but...

CUCM Installation and Upgrade Overview

Cucm Upgrade Process

CUCM can be upgraded from the various previous releases of Windows Server-based CUCM or appliance-based CUCM. Cisco CallManager Releases 3x and earlier for Windows Server have to be upgraded to Release 4.1(3) or later before upgrade to 6.0(1) is possible. Appliance-based CUCM releases earlier than 5.1(1) have to be upgraded to Release 5.1(1) before upgrade to 6.0(1) is possible. Figure 3-1 displays the various upgrade path options available for CUCM 6.0(1). Figure 3-1 CUCM Upgrade Paths Windows...

Manual Configuration

Manually adding new IP phones to the network is often tedious, but it can constitute a large part of day-to-day voice network management. Provisioning a Cisco SIP Phone is just like provisioning a SCCP phone. The configuration procedure consists of these high-level steps Step 1 Add the IP phone. Step 2 Configure the phone. Step 3 Configure one or more DNs. To manually add an IP phone to CUCM, go to Device > Phone and click the Add New button. Select the phone type (in Figure 9-24, a 7960 was...

Presence Support in CUCM

CUCM Presence is natively supported by CUCM, with no extra products or servers required. It allows an interested party (watcher) to monitor the real-time status of a DN (Presence entity). A watcher subscribes to the status information of one or more Presence entities. The status information of a Presence entity can be viewed using Presence-enabled speed dials or Presence-enabled lists call lists such as placed, received, or missed calls and public directory lists. The status can be one of the...

SIP Third Party IP Phone Support in CUCM

CUCM supports RFC 3261-compliant third-party SIP phones. Support for third-party SIP phone features varies greatly from Cisco SIP IP Phone features. Third-party phones have only RFC 3261 SIP Version 2 support, whereas Cisco SIP Phones have many Cisco SCCP features that have been rewritten to work in a native SIP protocol stack. Two different types of third-party SIP phones can be added to CUCM. Third-party SIP phones may be added as basic or advanced phones. Third-party SIP basic phones support...

CUCM User Accounts

Several CUCM features require user accounts for authentication purposes. These features include an administrative web page, user web pages, and the following applications Cisco Unified Attendant Console Cisco Unified Extension Mobility Cisco Unified Manager Assistant (CUMA) Cisco IP Phones can browse corporate and personal directories to find the directory number of a user. CUCM is provisioned with a user's first and last name to provide this directory-browsing functionality. CUCM IP phone...

CUVA Communication Flows

CUVA leverages several communications protocols, as detailed in Table 19-1. Table 19-1 CUVA Communication Protocols Table 19-1 CUVA Communication Protocols Allows communication between the Cisco IP Phone and associated software, such as CUVA. TCP source and destination port 4224. CAST is used between CUVA and the IP phone to build an association. The PC discovers the IP phone, using Cisco Discovery Protocol (CDP). CAST is also used to send signaling information for video streams from the IP...

CUCM Path Selection

Homeschool Daily Log Sheets

Path selection is an essential dial plan element. After matching an entry in the call routing table, CUCM has to select how and where to route the call. Most CUCM calls are routed across IP trunks or gateways. CUCM allows multiple paths to be configured for a route pattern for resiliency purposes. Figure 11-11 shows a scenario in which a user has dialed a long-distance PSTN number starting with an access code of 9, 1 for the long-distance operator, 408 for the area code, followed by 526 for the...

Voice Mail Integration

CUCM can integrate with Cisco Unity via either Skinny Client Control Protocol (SCCP) or Session Initiation Protocol (SIP). Cisco Unity telephony integrations are configured with the Cisco Unity Telephony Integration Manager (UTIM). In addition to the option of adding multiple clusters by adding additional integrations for each new CUCM cluster in Cisco Unity, CUCM supports Annex M.1, Message Tunneling for Q Signaling (Q.SIG), which allows administrators to enable Q.SIG on intercluster trunks...

IP Phone Auto Registration

Auto Registration Cucm

Auto registration allows CUCM to issue extension numbers to new IP phones, which is similar to the way in which the DHCP server issues IP addresses. With auto registration configured and enabled, when a new IP phone boots and attempts to register with CUCM for the first time, CUCM issues an extension number from a configured range. After CUCM issues the extension, it adds the phone to its configuration database with the used device ID (MAC address) and the assigned extension. If a specific...

LDAPv3 Synchronization Configuration

The LDAPv3 synchronization configuration procedure includes the following steps Step 1 Add CUCM directory user and assign administrator access rights in the LDAPv3 directory (depends on LDAPv3 directory server). Step 2 Activate the Cisco DirSync service. Step 4 Configure the LDAPv3 directory. The synchronization is performed by a feature service called Cisco DirSync. DirSync has to be activated on the publisher server. The Cisco DirSync service has some configurable service parameters that you...

CUCM Initial Configuration

After you install CUCM, some initial configuration has to be done before starting to deploy endpoints. This initial configuration includes the items in Table 5-1. Table 5-1 Publisher Server Required Services Table 5-1 Publisher Server Required Services Basic network settings have already been configured during installation, but some of them should be revisited (use of external NTP and DNS servers), and network settings that are not configurable during installation (for example, enabling DHCP...

Integrating CUCM with a Cisco Unity Voice Mail System

Seven steps are required to prepare CUCM to integrate with a Cisco Unity voice-mail system using SCCP, as follows Step 1 Configure MWI On and MWI Off. Step 2 Configure the voice-mail ports. Step 3 Configure the line group. Step 4 Configure the hunt list. Step 5 Configure the hunt pilot. Step 6 Configure the voice-mail pilot. Step 7 Configure the voice-mail profile. NOTE Steps 2 and 3 can be performed by using the Cisco Voice Mail Port wizard. The Cisco Voice Mail Port wizard allows quick...

Call Routing

CUCM automatically knows how to route calls to internal destinations within the same cluster, because it is configured with the DNs of its associated devices. This can be compared to directly connected networks at a router in IP routing. Route patterns must be configured to route calls to the PSTN. This is equivalent to static routes in an IP router. The call routing table of CUCM is built on registered devices and statically entered route patterns that point to external destinations. Figure...

Device Settings

Phone Button Template Cucm

Device settings include default settings, profiles, templates, and common device configurations that can be assigned to the device or device pool. Some of the common elements in device settings are described over the next few pages. Figure 9-8 displays the options that are available from the Device Settings submenu. ,, 11,, I,. Cisco Unified CM Administration For Cisco Unified Communications Solutions System - CaD Routing Med Resources Voice Mai - > evice - I AppDcatian - User Management *...

CUCM Digit Prefix and Stripping

The Digit Prefix feature prepends digits to a number. Any phone keypad digits from 0 to 9, and the * and digits, can be prepended to the calling or called numbers. The Digit Prefix feature can be applied to a calling-party or a called-party number and configured under the corresponding transformation setting in the route-pattern, route-list, or translation-pattern configuration. Figure 12-6 displays the calling- and called-party prefix configuration available at the route-pattern, route-list,...

Configuration for Cisco Unity Integration

Voice-mail ports must be configured in both CUCM and Cisco Unity. The number of ports needed depends on system load and on the number of subscribers. The name of the voice-mail ports configured in CUCM must match the CallManager Device Name Prefix parameter configured on Cisco Unity. MWI On and Off codes must be configured on both CUCM and Cisco Unity. These MWI on and off codes must be identically configured. The MWI On and Off codes are extension numbers that phones should not be able to...