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Chapter 6 Integrating Cisco Unity with the Phone System

Integrating with Cisco Unified Communications Manager Express (by Using SCCP or SIP)

Table 6-5	Differences Between SCCP and SIP Integration Methods

Feature		SCCP	SIP

Communication method		Cisco Unity-CM TSP	SIP trunk

Failover		Supported	Not supported

Use of SCCP and SIP phones		Supported	Some SCCP phones may require
			use of a media termination point
			(MTP)

Support for Cisco Unified CM		All versions	Versions 5.x and later
versions

Cisco Unified CM versions 5.x		Supported	Supported
and later

Cisco Unified CM		Supported	Not supported
authentication and encryption

First/last redirecting number		Supported	Supported

QOS		Supported	Supported

For information on the compatibility of Cisco Unity and Cisco Unified CM Express versions with the Cisco Unity-CM TSP and the SIP trunk, see the following documents at http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_device_support_tables_list.html:

•SCCP Compatibility Matrix: Cisco Unity, the Cisco Unity-CM TSP, Cisco Unified Communications Manager, and Cisco Unified Communications Manager Express

•SIP Trunk Compatibility Matrix: Cisco Unity and Cisco Unified Communications Manager

For information on how to integrate Cisco Unity with Cisco Unified CM Express, 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.

For more information on using the SIP protocol to integrate Cisco Unity with Cisco Unified CM Express, see the “Integrating by Using SIP” section on page 6-22.

Multiple Cisco Unified Communications Manager Express Version Support

A single Cisco Unity server can support multiple versions of Cisco Unified CM Express. The version of the Cisco Unity-CM TSP or SIP trunk being used must support all versions of Cisco Unified CM Express integrated with Cisco Unity. See the following documents at http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_device_support_tables_list.html:

•SCCP Compatibility Matrix: Cisco Unity, the Cisco Unity-CM TSP, Cisco Unified Communications Manager, and Cisco Unified Communications Manager Express

•SIP Trunk Compatibility Matrix: Cisco Unity and Cisco Unified Communications Manager

	Design Guide for Cisco Unity Release 5.x
6-18	OL-14619-01

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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 PermissionsDomino Clusters Domino PermissionsCisco Unity Subscribers and Domino Users Message Routing Client Access LicensesCisco Unity and the Domino Address Book Backing Up and Restoring DataServers Requirements and Recommendations Unified Messaging ConfigurationsUnified Messaging, No Domino Cluster Unified Messaging, Domino Cluster Voice Messaging ConfigurationCriteria for a Supported Configuration 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 Digital Integration with Digital Pimg Units Lines and Cables to Make Physical ConnectionsIntegration with Cisco Unified Communications Manager 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 SIP Compliance Supported SIP IntegrationsCisco Unity Failover with SIP Trunks 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