Cisco CP-7911G-CH1 System Administrator Manual page 236

Information About Integrating Voice Mail with Cisco Unified SCCP SRST
Figure 1
IP
IP
IP
Figure 2
IP
IP
IP
Both configurations allow phone message buttons to remain active and calls to busy or unanswered
numbers to be forwarded to the dialed numbers' mailboxes.
Calls that reach a busy signal, calls that are unanswered, and calls made by pressing the message button
are forwarded to the voice-mail system. To make this happen, you must configure access from the dial
peers to the voice-mail system and establish routing to the voice-mail system for busy and unanswered
calls and for message buttons.
If the voice-mail system is accessed over FXO or FXS, you must configure instructions (DTMF patterns)
for the voice-mail system so that it can access the correct voice-mail system mailbox. If your voice-mail
system is accessed over BRI or PRI, no instructions are necessary because the voice-mail system can
log in to the calling phone's mailbox directly.
Cisco Unified SCCP and SIP SRST System Administrator Guide
236
Cisco Unified Communications Manager Fallback with BRI or PRI
Cisco Unified
SRST gateway
BRI/PRI
WAN failure
WAN
Cisco Unified Communications Manager Fallback with PSTN
FXS
PSTN
WAN failure
WAN
Integrating Voice Mail with Cisco Unified SRST
Cisco Unified
Communications
Manager
gateway
Voice-mail server
Cisco Unified
Communications
Manager gateway
FXO
Voice-mail server
Cisco Unified
Communications
Manager
Cisco Unified
Communications
Manager
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