Table of Contents
Cisco SIP Proxy Server Integration Guide for Cisco Unity Connection Release 10.x
Task List to Create the Integration
Integrations with Multiple Phone Systems
Planning How the Voice Messaging Ports Will Be Used by Cisco Unity Connection
The Number Voice of Messaging Ports to Install
The Number of Voice Messaging Ports That Will Answer Calls
The Number of Voice Messaging Ports That Will Dial Out
Considerations for a Cisco Unity Connection Cluster
When Both Cisco Unity Connection Servers Are Functioning Normally
When Only One Cisco Unity Connection Server Is Functioning
Programming the Cisco SIP Proxy Server Phone System
Configure the SIP Gateway Servicing Cisco Unity Connection for the SIP Integration
Creating a New Integration with the Cisco SIP Proxy Server Phone System
Adding New User Templates for Multiple Integrations
Appendix: Compatibility of Phone System Components
Appendix: Documentation and Technical Assistance
Cisco Unity Connection Documentation
Obtaining Documentation and Submitting a Service Request
Cisco Product Security Overview
Cisco SIP Proxy Server Integration Guide for Cisco Unity Connection Release 10.x
This document provides instructions for integrating a Cisco SIP Proxy Server phone system with Cisco Unity Connection.
Integration Tasks
Before doing the following tasks to integrate Cisco Unity Connection with a Cisco SIP Proxy Server phone system, confirm that Cisco Unity Connection is ready for the integration by completing the applicable tasks in the Installation Guide for Cisco Unity Connection.
The following task list describes the process for creating the integration.
Task List to Create the Integration
Use the following task list to integrate Cisco Unity Connection with the Cisco SIP Proxy Server phone system.
1. Review the system and equipment requirements to confirm that all phone system and Cisco Unity Connection server requirements have been met. See the “Requirements” section.
2. Plan how the voice messaging ports will be used by Cisco Unity Connection. See the “Planning How the Voice Messaging Ports Will Be Used by Cisco Unity Connection” section.
3. Program the Cisco SIP Proxy Server phone system. See the “Programming the Cisco SIP Proxy Server Phone System” section.
4. Set up the SIP gateway that services Cisco Unity Connection. See the “Configure the SIP Gateway Servicing Cisco Unity Connection for the SIP Integration” section.
5. Create the integration. See the “Creating a New Integration with the Cisco SIP Proxy Server Phone System” section.
6. Test the integration. See the “Testing the Integration” section.
7. If this integration is a second or subsequent integration, add the applicable new user templates for the new phone system. See the “Adding New User Templates for Multiple Integrations” section.
Requirements
The Cisco SIP Proxy Server integration supports configurations of the following components:
- A Cisco SIP Proxy Server phone system.
- Cisco SIP Proxy Server-enabled phones (for example, SIP-enabled Cisco IP Phone 7960 or Pingtel xpressa).
The SIP phones must use the REFER method for call transfers.
- SIP-enabled gateways (for example, (Cisco AS5300 Access Server, Cisco 2600 series router, or Cisco 3600 series router) for access to the PSTN.
For details on compatibility of the phone system components with the integration, see the “Appendix: Compatibility of Phone System Components” section.
- Cisco Unity Connection installed and ready for the integration, as described in the Installation Guide for Cisco Unity Connection at http://www.cisco.com/en/US/products/ps6509/prod_installation_guides_list.html.
- A license that enables the applicable number of voice messaging ports.
Integration Description
The Cisco SIP Proxy Server integration uses the SIP proxy server to set up communications between the voice messaging ports on the Cisco Unity Connection server and the applicable end point (for example, a SIP-enabled phone). The communications occur through:
- An IP network (LAN, WAN, or Internet) to all SIP-enabled devices connected to it.
- A SIP-enabled gateway to the PSTN and all phones connected to it.
Figure 1 shows the connections.
Figure 1 Connections Between the Cisco SIP Proxy Server Phone System and Cisco Unity Connection
Call Information
The proxy server integration sends the following information in the SIP message with calls forwarded:
- In the Diversion header, the extension of the called party
- In the Diversion header, the reason for the forward (the extension is busy, does not answer, or is set to forward all calls)
- In the From header, the extension of the calling party (for internal calls) or the SIP URL of the calling party (if it is an external call and the system uses caller ID)
Cisco Unity Connection uses this information to answer the call appropriately. For example, a call forwarded to Cisco Unity Connection is answered with the personal greeting of the user. If the phone system routes the call to Cisco Unity Connection without this information, Cisco Unity Connection answers with the opening greeting.
Integration Functionality
The Cisco SIP Proxy Server integration with Cisco Unity Connection provides the following features:
- Call forward to personal greeting
- Call forward to busy greeting
- Caller ID
- Easy message access (a user can retrieve messages without entering an ID; Cisco Unity Connection identifies a user based on the extension from which the call originated; a password may be required)
- Identified user messaging (Cisco Unity Connection identifies a user who leaves a message during a forwarded internal call, based on the extension from which the call originated)
- Message waiting indication (MWI)
Integrations with Multiple Phone Systems
When Cisco Unity Connection is installed as Cisco Business Edition—on the same server with Cisco Unified Communications Manager—Cisco Unity Connection cannot be integrated with multiple phone systems at one time.
When Cisco Unity Connection is not installed as Cisco Business Edition, Cisco Unity Connection can be integrated with multiple phone systems at one time. For information on and instructions for integrating Cisco Unity Connection with multiple phone systems, see the Multiple Phone System Integration Guide for Cisco Unity Connection Release 10.x at http://www.cisco.com/en/US/products/ps6509/products_installation_and_configuration_guides_list.html.
Planning How the Voice Messaging Ports Will Be Used by Cisco Unity Connection
Before programming the phone system, you need to plan how the voice messaging ports will be used by Cisco Unity Connection.
Unlike other integrations, the hunt group mechanism for a Cisco SIP Proxy Server integration is implemented on the Cisco Unity Connection server. Within a port group, each incoming call hunts for an available voice messaging port among all the ports in a round-robin (or circular) fashion. If a voice messaging port in the port group is set not to answer calls or is not enabled, a call reaching that port may receive a busy signal.
The following considerations will affect the programming for the phone system (for example, setting up the hunt group or call forwarding for the voice messaging ports):
For a Cisco Unity Connection cluster, each Cisco Unity Connection server must have enough ports to handle all voice messaging traffic in case the other server stops functioning.
- The number of voice messaging ports that will answer calls.
- The number of voice messaging ports that will only dial out, for example, to send message notification, to set message waiting indicators (MWIs), and to make telephone record and playback (TRAP) connections.
The following table describes the voice messaging port settings in Cisco Unity Connection that can be set on Telephony Integrations > Port of Cisco Unity Connection Administration.
The Number Voice of Messaging Ports to Install
The number of voice messaging ports to install depends on numerous factors, including:
- The number of calls Cisco Unity Connection will answer when call traffic is at its peak.
- The expected length of each message that callers will record and that users will listen to.
- The number of users.
- The number of calls made for message notification.
- The number of MWIs that will be activated when call traffic is at its peak.
- The number of TRAP connections needed when call traffic is at its peak. (TRAP connections are used by Cisco Unity Connection web applications to play back and record over the phone.)
- The number of calls that will use the automated attendant and call handlers when call traffic is at its peak.
- Whether a Cisco Unity Connection cluster is configured. For considerations, see the “Considerations for a Cisco Unity Connection Cluster” section.
It is best to install only the number of voice messaging ports that are needed so that system resources are not allocated to unused ports.
The Number of Voice Messaging Ports That Will Answer Calls
The calls that the voice messaging ports answer can be incoming calls from unidentified callers or from users. Assign all of the voice messaging ports to answer calls.
You can set voice messaging ports to both answer calls and to dial out (for example, to send message notifications).
If your system is configured for a Cisco Unity Connection cluster, see the “Considerations for a Cisco Unity Connection Cluster” section.
The Number of Voice Messaging Ports That Will Dial Out
Ports that will only dial out can do one or more of the following:
- Notify users by phone, pager, or email of messages that have arrived.
- Turn MWIs on and off for user extensions.
- Make a TRAP Unity Connection so that users can use the phone as a recording and playback device in Cisco Unity Connection web applications.
If your system is configured for a Cisco Unity Connection cluster, see the “Considerations for a Cisco Unity Connection Cluster” section.
Considerations for a Cisco Unity Connection Cluster
If your system is configured for a Cisco Unity Connection cluster, consider how the voice messaging ports will be used in different scenarios.
When Both Cisco Unity Connection Servers Are Functioning Normally
- A hunt group is configured on the phone system to distribute calls equally to both Cisco Unity Connection servers.
- The network is configured to send incoming calls first to the subscriber server, then to the publisher server if no answering ports are available on the subscriber server.
- Both Cisco Unity Connection servers are active and handle voice messaging traffic for the system.
- In Cisco Unity Connection Administration, the voice messaging ports are configured so that an equal number of voice messaging ports are assigned to each Cisco Unity Connection server. This guide directs you to assign the voice messaging ports to their specific server at the applicable time.
- The number of voice messaging ports that are assigned to one Cisco Unity Connection server must be sufficient to handle all of the voice messaging traffic for the system (answering calls and dialing out) when the other Cisco Unity Connection server stops functioning.
If both Cisco Unity Connection servers must be functioning to handle the voice messaging traffic, the system will not have sufficient capacity when one of the servers stops functioning.
If all the voice messaging ports are assigned to one Cisco Unity Connection server, the other Cisco Unity Connection server will not be able to answer calls or to dial out.
When Only One Cisco Unity Connection Server Is Functioning
- The hunt group on the phone system sends all calls to the functioning Cisco Unity Connection server.
- The functioning Cisco Unity Connection server receives all voice messaging traffic for the system.
- The number of voice messaging ports that are assigned to the functioning Cisco Unity Connection server must be sufficient to handle all of the voice messaging traffic for the system (answering calls and dialing out).
- The functioning Cisco Unity Connection server must have voice messaging ports that will answer calls and that can dial out (for example, to set MWIs).
If the functioning Cisco Unity Connection server does not have voice messaging ports for answering calls, the system will not be able to answer incoming calls. Similarly, if the functioning Cisco Unity Connection server does not have voice messaging ports for dialing out, the system will not be able to dial out (for example, to set MWIs).
Programming the Cisco SIP Proxy Server Phone System
If you use programming options other than those supplied in the following procedure, the performance of the integration may be affected. Do the following procedure.
To Program the Cisco SIP Proxy Server Phone System
Step 1 Install and set up the Cisco SIP Proxy Server as described in the server documentation: Task List to Create the Integration
Step 2 For a Cisco Unity Connection cluster, identify the Cisco Unity Connection servers with a fully qualified domain name (FQDN), and configure a DNS server to resolve the FQDN to the IP addresses and SIP ports of the Cisco Unity Connection server.
Step 3 Program each phone to forward calls to <the contact line name>@<SIP proxy server>, the voice messaging line name that users will use to contact Cisco Unity Connection.
Step 4 If Cisco Unity Connection will authenticate with the Cisco SIP Proxy Server, enter a user record for the contact line name that Cisco Unity Connection will use.
Configure the SIP Gateway Servicing Cisco Unity Connection for the SIP Integration
To configure the SIP gateway for the SIP integration with Cisco Unity Connection, do the following three procedures.
To Configure Application Session on the SIP Gateway
Step 1 On the VoIP dial-peer servicing Cisco Unity Connection, use the following command:
Step 2 Create a destination pattern that matches the voice messaging port numbers. For example, if the system has voice messaging ports 1001 through 1016, enter the dial-peer destination pattern 10xx.
Step 3 Repeat Step 1 and Step 2 for all remaining VoIP dial-peers servicing Cisco Unity Connection.
To Disable the SIP Media Inactivity Timer
Step 1 On the gateway, go into the gateway configuration mode by entering the following command:
Step 2 Disable the RTCP timer by entering the following command:
Step 3 Exit the gateway configuration mode by entering the following command:
To Enable DTMF Relay for SIP Calls by Using Named Telephony Events
Step 1 On the gateway, go into dial-peer configuration mode and define the VoIP dial peer by entering the following command:
Step 2 Configure the SIP protocol on the gateway by entering the following command:
Step 3 Enable DTMF relay using NTE RTP packets by entering the following command:
Step 4 Configure the type of payload in the NTE packet by entering the following command:
Creating a New Integration with the Cisco SIP Proxy Server Phone System
After ensuring that Cisco SIP Proxy Server phone system and Cisco Unity Connection are ready for the integration, do the following procedure to set up the integration and to enter the port settings.
Step 1 Sign in to Cisco Unity Connection Administration.
Step 2 In Cisco Unity Connection Administration, expand Telephony Integrations, then select Phone System.
Step 3 On the Search Phone Systems page, under Display Name, select the name of the default phone system.
Step 4 On the Phone System Basics page, in the Phone System Name field, enter the descriptive name that you want for the phone system.
Step 5 If you want to use this phone system as the default for TRaP connections so that administrators and users without voicemail boxes can record and playback through the phone in Cisco Unity Connection web applications, check the Default TRAP Switch check box. If you want to use another phone system as the default for TRaP connections, uncheck this check box.
Step 7 On the Phone System Basics page, in the Related Links drop-down box, select Add Port Group and select Go.
Step 8 On the New Port Group page, enter the applicable settings and select Save.
Select the name of the phone system that you entered in Step 4.
Select Port Group Template and select SIP in the drop-down box.
Enter a descriptive name for the port group. You can accept the default name or enter the name that you want.
If you want Cisco Unity Connection to authenticate with the Cisco SIP Proxy Server, check this check box.
Enter the name that Cisco Unity Connection will use to authenticate with the Cisco SIP Proxy Server.
Enter the password that Cisco Unity Connection will use to authenticate with the Cisco SIP Proxy Server.
Enter the voice messaging line name that users will use to contact Cisco Unity Connection and that Cisco Unity Connection will use to register with the Cisco SIP Proxy Server.
Select the SIP transport protocol that Cisco Unity Connection will use.
Enter the IP address (or host name) of the primary Cisco SIP Proxy Server that you are integrating with Cisco Unity Connection.
Enter the IP port of the primary gateway that you are connecting to Cisco Unity Connection. We recommend that you use the default setting.
Step 9 On the Port Group Basics page, do the following substeps if there is a secondary Cisco SIP Proxy Server. Otherwise, continue to Step 10.
a. On the Edit menu, select Servers.
b. On the Edit Servers page, under SIP Servers, select Add.
c. Enter the following settings for the secondary Cisco SIP Proxy Server and select Save.
d. Repeat Step 9b. and Step 9c. for any remaining secondary Cisco SIP Proxy Servers.
e. On the Edit menu, select Port Group Basics.
Step 10 On the Port Group Basics page, in the Related Links drop-down box, select Add Ports and select Go.
Step 11 On the New Port page, enter the following settings and select Save.
Enter the number of voice messaging ports that you want to create in this port group.
Note For a Cisco Unity Connection cluster, you must enter the total number of voice messaging ports that will be used by all Cisco Unity Connection servers. Each port will later be assigned to a specific Cisco Unity Connection server.
Select the name of the phone system that you entered in Step 4.
Select the name of the port group that you added in Step 8.
Step 12 On the Search Ports page, select the display name of the first voice messaging port that you created for this phone system integration.
Note By default, the display names for the voice messaging ports are composed of the port group display name followed by incrementing numbers.
Step 13 On the Port Basics page, set the voice messaging port settings as applicable. The fields in the following table are the ones that you can change.
Step 16 Repeat Step 13 through Step 15 for all remaining voice messaging ports for the phone system.
Step 17 If another phone system integration exists, in Cisco Unity Connection Administration, expand Telephony Integrations, then select Trunk. Otherwise, skip to Step 21.
Step 18 On the Search Phone System Trunks page, on the Phone System Trunk menu, select New Phone System Trunk.
Step 19 On the New Phone System Trunk page, enter the following settings for the phone system trunk and select Save.
Step 20 Repeat Step 18 and Step 19 for all remaining phone system trunks that you want to create.
Step 21 In the Related Links drop-down list, select Check Telephony Configuration and select Go to confirm the phone system integration settings.
If the test is not successful, the Task Execution Results displays one or more messages with troubleshooting steps. After correcting the problems, test the Unity Connection again.
Step 22 In the Task Execution Results window, select Close.
Testing the Integration
To test whether Cisco Unity Connection and the phone system are integrated correctly, do the following procedures in the order listed.
If any of the steps indicate a failure, see the following documentation as applicable:
- The installation guide for the phone system.
- Troubleshooting Guide for Cisco Unity Connection Release 10.x, available at http://www.cisco.com/en/US/docs/voice_ip_comm/connection/10x/troubleshooting/guide/10xcuctsgx.html.
- The setup information earlier in this guide.
To Set Up the Test Configuration
Step 1 Set up two test extensions (Phone 1 and Phone 2) on the same phone system that Cisco Unity Connection is connected to.
Step 2 Set Phone 1 to forward calls to the Cisco Unity Connection pilot number when calls are not answered.
Caution The phone system must forward calls to the Cisco Unity Connection pilot number in no fewer than four rings. Otherwise, the test may fail.
Step 3 To create a test user for testing, in Cisco Unity Connection Administration, expand Users, then select Users.
Step 4 On the Search Users page, select the display name of a user to use for testing. The extension for this user must be the extension for Phone 1.
Step 5 On the Edit User Basics page, uncheck the Set for Self-enrollment at Next Login check box.
Step 6 In the Voice Name field, record a recorded name for the test user.
Step 8 On the Edit menu, select Message Waiting Indicators.
Step 9 On the Message Waiting Indicators page, select the message waiting indicator. If no message waiting indication is in the table, select Add New.
Step 10 On the Edit Message Waiting Indicator page, enter the following settings.
Step 12 On the Edit menu, select Transfer Rules.
Step 13 On the Transfer Rules page, select the active option.
Step 14 On the Edit Transfer Rule page, under Transfer Action, select the Extension option and enter the extension of Phone 1.
Step 15 In the Transfer Type field, select Release to Switch.
Step 17 Minimize the Cisco Unity Connection Administration window.
Do not close the Cisco Unity Connection Administration window because you will use it again in a later procedure.
Step 18 Sign in to the Real-Time Monitoring Tool (RTMT).
Step 19 On the Unity Connection menu, select Port Monitor. The Port Monitor tool appears in the right pane.
Step 20 In the right pane, select Start Polling. The Port Monitor will display which port is handling the calls that you will make.
To Test an External Call with Release Transfer
Step 1 From Phone 2, enter the access code necessary to get an outside line, then enter the number outside callers use to dial directly to Cisco Unity Connection.
Step 2 In the Port Monitor, note which port handles this call.
Step 3 When you hear the opening greeting, enter the extension for Phone 1. Hearing the opening greeting means that the port is configured correctly.
Step 4 Confirm that Phone 1 rings and that you hear a ringback tone on Phone 2. Hearing a ringback tone means that Cisco Unity Connection correctly released the call and transferred it to Phone 1.
Step 5 Leaving Phone 1 unanswered, confirm that the state of the port handling the call changes to “Idle.” This state means that release transfer is successful.
Step 6 Confirm that, after the number of rings that the phone system is set to wait, the call is forwarded to Cisco Unity Connection and that you hear the greeting for the test user. Hearing the greeting means that the phone system forwarded the unanswered call and the call-forward information to Cisco Unity Connection, which correctly interpreted the information.
Step 7 On the Port Monitor, note which port handles this call.
Step 8 Leave a message for the test user and hang up Phone 2.
Step 9 In the Port Monitor, confirm that the state of the port handling the call changes to “Idle.” This state means that the port was successfully released when the call ended.
Step 10 Confirm that the MWI on Phone 1 is activated. The activated MWI means that the phone system and Cisco Unity Connection are successfully integrated for turning on MWIs.
Step 1 From Phone 1, enter the internal pilot number for Cisco Unity Connection.
Step 2 When asked for your password, enter the password for the test user. Hearing the request for your password means that the phone system sent the necessary call information to Cisco Unity Connection, which correctly interpreted the information.
Step 3 Confirm that you hear the recorded name for the test user (if you did not record a name for the test user, you will hear the extension number for Phone 1). Hearing the recorded name means that Cisco Unity Connection correctly identified the user by the extension.
Step 5 After listening to the message, delete the message.
Step 6 Confirm that the MWI on Phone 1 is deactivated. The deactivated MWI means that the phone system and Cisco Unity Connection are successfully integrated for turning off MWIs.
Step 8 On the Port Monitor, confirm that the state of the port handling the call changes to “Idle.” This state means that the port was successfully released when the call ended.
To Set Up Supervised Transfer on Cisco Unity Connection
Step 1 In Cisco Unity Connection Administration, on the Edit Transfer Rule page for the test user, in the Transfer Type field, select Supervise Transfer.
Step 2 In the Rings to Wait For field, enter 3.
Step 4 Minimize the Cisco Unity Connection Administration window.
Do not close the Cisco Unity Connection Administration window because you will use it again in a later procedure.
Step 1 From Phone 2, enter the access code necessary to get an outside line, then enter the number outside callers use to dial directly to Cisco Unity Connection.
Step 2 On the Port Monitor, note which port handles this call.
Step 3 When you hear the opening greeting, enter the extension for Phone 1. Hearing the opening greeting means that the port is configured correctly.
Step 4 Confirm that Phone 1 rings and that you do not hear a ringback tone on Phone 2. Instead, you should hear the indication your phone system uses to mean that the call is on hold (for example, music).
Step 5 Leaving Phone 1 unanswered, confirm that the state of the port handling the call remains “Busy.” This state and hearing an indication that you are on hold mean that Cisco Unity Connection is supervising the transfer.
Step 6 Confirm that, after three rings, you hear the greeting for the test user. Hearing the greeting means that Cisco Unity Connection successfully recalled the supervised-transfer call.
Step 7 During the greeting, hang up Phone 2.
Step 8 On the Port Monitor, confirm that the state of the port handling the call changes to “Idle.” This state means that the port was successfully released when the call ended.
Adding New User Templates for Multiple Integrations
When you create the first phone system integration, this phone system is automatically selected in the default user template. The users that you add after creating this phone system integration will be assigned to this phone system by default.
However, for each additional phone system integration that you create, you must add the applicable new user templates that will assign users to the new phone system. You must add the new templates before you add new users who will be assigned to the new phone system.
For details on adding new user templates, or on selecting a user template when adding a new user, see the “User Templates” section in “User Attributes” chapter of the System Administration Guide for Cisco Unity Connection Release 10.x. The guide is available at
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/10x/administration/guide/10xcucsagx/10xcucsag030.html
Appendix: Compatibility of Phone System Components
Testing has shown compatibility of the following phone system components with Cisco Unity Connection in a SIP integration.
Documentation Conventions
The Cisco SIP Proxy Server Integration Guide for Cisco Unity Connection Release 10.x uses the following conventions.
The Cisco SIP Proxy Server Integration Guide for Cisco Unity Connection Release 10.x also uses the following conventions:
Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the document.
Cisco Unity Connection Documentation
For descriptions and URLs of Cisco Unity Connection documentation on Cisco.com, see the Documentation Guide for Cisco Unity Connection. The document is shipped with Cisco Unity Connection and is available at http://www.cisco.com/en/US/products/ps6509/products_documentation_roadmaps_list.html.
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.
Cisco Product Security Overview
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