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Design Guide for Cisco Unity Release 5.x
OL-14619-01
Cisco Unified Communications Manager Authentication and Encryption for Cisco Unity Voice
Messaging Ports (SCCP Integrations Only)
6-12
Packetization (SCCP Integrations Only) 6-17
Integrating with Cisco Unified Communications Manager Express (by Using SCCP or SIP) 6-17
Multiple Cisco Unified Communications Manager Express Version Support 6-18
Multiple Cisco Unified Communications Manager Express Routers Integrating with a Single
Cisco Unity Server
6-19
Integrating Cisco Unity with Cisco Survivable Remote Site Telephony (Cisco SRST) 6-19
Integrating by Using SIP 6-22
Supported SIP Integrations 6-23
Cisco Unity Failover with SIP Trunks 6-23
SIP Compliance 6-23
Integrating with Circuit-Switched Phone Systems by Using PIMG or TIMG Units 6-24
Description of PIMG Integrations 6-24
Description of TIMG Integrations 6-26
Setup and Configuration 6-27
Firmware Updates 6-27
Serial Integrations 6-27
Increasing Port Capacity 6-28
Cisco Unity Failover 6-28
Cisco Unity Failback 6-29
Multiple Integration Support/Branch Office Consolidation 6-29
Integrating with Multiple Phone Systems 6-30
Requirements for Integrations with Multiple Phone Systems 6-31
Using SCCP Phone Systems with Other Integrations 6-31
Notes for PIMG Integrations 6-31
Optional Integration Features 6-32
Alternate Extensions 6-32
Alternate MWIs 6-33
Centralized Voice Messaging 6-34
CHAPTER
7 Cisco Unity Failover and Standby Redundancy 7-1
Comparison of Cisco Unity Failover and Standby Redundancy 7-1
Failover 7-1
Configuring Failover When Cisco Unity Servers Are Separated by a Firewall 7-2
Installing Exchange 2003 on the Cisco Unity Secondary Server in a Voice Messaging Configuration
with Failover
7-2
Requirements for Spanning a Cisco Unity Failover Pair Across Redundant Data Centers 7-2
Standby Redundancy 7-2