Cisco Systems OL-14619-01 manual Centralized Voice Messaging

6-12

Contents

Cisco Unified Communications Manager Authentication and Encryption for Cisco Unity Voice

Messaging Ports (SCCP Integrations Only)

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
	Cisco Unity Failover and Standby Redundancy 7-1
C H A P T E R 7
	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
	Design Guide for Cisco Unity Release 5.x
vi		OL-14619-01