Cisco Systems OL-14619-01 manual How an Integration Works

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Chapter 6 Integrating Cisco Unity with the Phone System

How an Integration Works

Cisco Unity can integrate with one or more phone systems at the same time. For details, see the Multiple Phone System Integration Guide for Cisco Unity 5.0 at http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_installation_and_configuration_g uides_list.html.

Circuit-switched phone systems can integrate with Cisco Unity by using one of the following integration methods:

PIMG/TIMG integrations

PIMG or TIMG units are media gateways between circuit-switched phone

 

systems and IP networks. On the circuit-switched phone system side, there are

 

digital (feature-set), analog, and T1-CAS interfaces. On the IP side, there is a

 

SIP interface, which is how Cisco Unity communicates with the PIMG unit.

 

PIMG/TIMG units are the preferred method for integrating with

 

circuit-switched phone systems.

 

 

Voice card integrations

Voice cards connect circuit-switched phone systems and Cisco Unity through

 

analog lines. Voice cards must be installed in the Cisco Unity server or in an

 

expansion chassis that is connected to the Cisco Unity server.

 

Support for voice cards is slowly being phased out, and voice cards are now

 

only supported when Windows 2000 Server is installed on the Cisco Unity

 

server. For information on the voice cards supported for use with Cisco Unity,

 

see Supported Hardware and Software, and Support Policies for Cisco Unity

 

Release 5.x at

 

http://www.cisco.com/en/US/products/sw/voicesw/ps2237/prod_installation

 

_guides_list.html.

 

 

For detailed information on integrating Cisco Unity with a specific phone system, see the applicable Cisco Unity integration guide at http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_installation_and_configuration_g uides_list.html.

How an Integration Works

An integration depends on the following components to be successful:

•Lines and cables necessary to make physical connections (in circuit-switched phone systems) or a network connection (in Cisco Unified Communications Manager (CM) (formerly known as Cisco Unified CallManager) and SIP proxy servers). For more information, see the “Lines and Cables to Make Physical Connections” section on page 6-3.

•Settings in the phone system and in Cisco Unity. For more information, see the “Settings in the Phone System and in Cisco Unity” section on page 6-7.

•Call information exchanged by the phone system and Cisco Unity. For more information, see the “Call Information Exchanged by the Phone System and Cisco Unity” section on page 6-7.

•Call control (signals used to set up, monitor, and tear down a call) to determine and control the status of the call. For more information, see the “Call Control” section on page 6-8.

Design Guide for Cisco Unity Release 5.x

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Contents Design Guide for Cisco Unity Americas HeadquartersDesign Guide for Cisco Unity Release N T E N T S Workstations Authentication Centralized Voice Messaging Configuration Viii Audience Document ConventionsSupport Policy for Optional Third-Party Software Cisco Product Security Overview Xii Product Area Design or Feature Documentation Design Guide OverviewDesign Guide for Cisco Unity Bridge at Page Design Guide Overview Design Guide for Cisco Unity Release Cisco Unity Concepts How Cisco Unity WorksUnified Messaging Voice MessagingHardware Components of a Cisco Unity System One or More Cisco Unity Servers Cisco Unity Supported Platforms List atNetwork Connection Optional for Some Configurations Voice Messages Are Stored in Domino or Exchange Where Cisco Unity Stores DataSoftware Components of a Cisco Unity System DominoExchange Enabling Cisco Unity Servers to Communicate with One Another Networking Guide for Cisco Unity at Some Configuration Settings Are Stored in the Registry Name Resolution Availability of Network ResourcesDomain Controller Access and Availability Availability of Message Store ServersUsing Firewalls with Cisco Unity Sizing and Scaling Cisco Unity ServersStorage Capacity for Voice Messages Number of Voice PortsAudio Codecs How Codecs Affect the File Size of Voice MessagesAudio Codec TTS, TTY, Pocket PCs, and Hand-Held ComputersInteroperability Among Multiple Voice-Messaging Systems Quality RatingDeployment Models Unified Messaging with Customer-Provided Infrastructure Voice Messaging with Customer-Provided Infrastructure Multi-Site WAN with Distributed MessagingPhysical Placement and Network Infrastructure Considerations for Customer-Provided Infrastructure Active Directory ConsiderationsDesign Guide for Cisco Unity Release Exchange Considerations All Versions Exchange Considerations That Apply Only Exchange Considerations for Cisco-Provided, Dedicated Infrastructure OL-14619-01 Overview of Cisco Unity with Domino and Notes Maximum Number of Cisco Unity Subscribers Domino Address Book TerminologyChanges That csAdmin Makes to the Domino Address Book Element NameChanges That csClient Makes to the Mail File Server Placement Windows Domains and Domino DomainsAuthentication Active Directory Accounts and PermissionsCisco Unity Subscribers and Domino Users Domino PermissionsDomino Clusters Message Routing Client Access LicensesCisco Unity and the Domino Address Book Backing Up and Restoring DataUnified Messaging, No Domino Cluster Unified Messaging ConfigurationsServers Requirements and Recommendations Criteria for a Supported Configuration Voice Messaging ConfigurationUnified Messaging, Domino Cluster Deploying Cisco Unity for Lotus Domino Deployment Tasks for Unified Messaging Configurations Administrative Access and ControlNetwork Services Establishing Support PoliciesOperational Tasks Design Guide for Cisco Unity Release Integrating Cisco Unity with the Phone System OverviewHow an Integration Works Integration with Cisco Unified Communications Manager Lines and Cables to Make Physical ConnectionsDigital Integration with Digital Pimg Units Dtmf Integration with Analog Pimg Units Timg Integration LAN/WANDtmf Integration with Voice Cards Serial Integration with Voice CardsSettings in the Phone System and in Cisco Unity Connections for a Serial Integration by Using Voice CardsCall Control General Integration Issues Feature Sccp SIPIntegrating Cisco Unity with the Phone System Option Considerations Cisco Unified Communications Manager Security Features DescriptionDescription When Data Is Encrypted Setting EffectSettings for Individual Voice Messaging Ports Disabling and Re-Enabling SecurityPacketization Sccp Integrations Only Sccp SIP Cisco 11 Cisco Unified Communications Manager Fallback with Pstn Cisco Unity to a branch office will fail Integrating by Using SIP Cisco Unity Failover with SIP Trunks Supported SIP IntegrationsSIP Compliance Description of Pimg Integrations Dtmf Integration with Analog Pimg Units Description of Timg Integrations Setup and Configuration Firmware Updates Serial IntegrationsIncreasing Port Capacity Cisco Unity FailoverCisco Unity Failback Multiple Integration Support/Branch Office ConsolidationIntegrating with Multiple Phone Systems Using Sccp Phone Systems with Other Integrations Requirements for Integrations with Multiple Phone SystemsReasons to Use Alternate Extensions Optional Integration FeaturesAlternate Extensions How Alternate Extensions WorkAlternate MWIs MWIs for Extensions on a Non-Integrated Phone SystemCentralized Voice Messaging OL-14619-01 OL-14619-01 Cisco Unity Failover and Standby Redundancy FailoverStandby Redundancy Cisco Unity Failover and Standby Redundancy Cisco Unity Failover and Standby Redundancy Diagram of a Standby Redundancy Configuration Pstn WANOL-14619-01 Voice-Recognition Access to Cisco Unity OL-14619-01 Migrating to Cisco Unity from Another Voice-Messaging System Migrating to Cisco Unity from Another Voice-Messaging System D E IN-2 IN-3 IN-4
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