Manual

Cisco Unified Communications Manager Express SIP Trunk Integration Guide for Cisco Unity Connection Release 9.x

OL-20348-01

Integration Description

Call Information

The phone system sends the following information with forwarded calls:

• The extension of the called party

• The extension of the calling party (for internal calls) or the phone number of the calling party (if it

is an external call and the system uses caller ID)

• The reason for the forward (the extension is busy, does not answer, or is set to forward all calls)

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 Unified CM Express SIP trunk 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 automatically 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 Unified Communications Manager Business

Edition (CMBE)—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 Unified CMBE, Cisco Unity Connection can be

integrated with two or more 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 9.x at

http://www.cisco.com/en/US/products/ps6509/products_installation_and_configuration_guides_list.ht

ml.