Specifications

Integrating Voice Mail with Cisco Unified SRST
How to Integrate Voice Mail with Cisco Unified SRST
156
Cisco Unified Survivable Remote Site Telephony Version 4.0 System Administrator Guide
Figure 11 How Numbers Are Extracted from Tokens
Sets of tags and tokens or patterns activate a voice-mail system when
• A user presses the message button on a phone (pattern direct command).
• An internal extension attempts to connect to a busy extension and the call is forwarded to voice mail
(pattern ext-to-ext busy command).
• An internal extension fails to connect to an extension and the call is forwarded to voice mail
(pattern ext-to-ext no-answer command).
• An external trunk call reaches a busy extension and the call is forwarded to voice mail (pattern
trunk-to-ext busy command).
• An external trunk call reaches an unanswered extension and the call is forwarded to voice mail
(pattern trunk-to-ext no-answer command).
Prerequisites
• FXO hairpin-forwarded calls to voice-mail systems must have disconnect supervision from the
central office. For further information, see the FXO Answer and Disconnect Supervision document.
• To configure patterns that your voice-mail system will interpret correctly, you must know how the
system routes voice-mail calls and interprets DTMF tones (see the “Call Routing Instructions Using
DTMF Digit Patterns” section on page 155).
You can find information about how Cisco Unity handles voice-mail calls in the How to Transfer a
Caller Directly into a Cisco Unity Mailbox document. Additional call-handling information can be
found in the “Subscriber and Operator Orientation” chapters of any Cisco Unity system
administration guide book.
For other voice-mail systems, see the analog voice mail integration configuration guide or
information about the system’s call handling.
SUMMARY STEPS
1. vm-integration
2. pattern direct tag1 {CGN | CDN | FDN} [tag2 {CGN | CDN | FDN}]
[tag3 {CGN | CDN | FDN}] [last-tag]
3. pattern ext-to-ext busy tag1 {CGN | CDN | FDN} [tag2 {CGN | CDN | FDN}]
[tag3 {CGN | CDN | FDN}] [last-tag]
4. pattern ext-to-ext no-answer tag1 {CGN | CDN | FDN} [tag2 {CGN | CDN | FDN}]
[tag3 {CGN | CDN | FDN}] [last-tag]
88979
ext. 1000
(cgn=calling number)
ext. 2000
ext. 3000
(fdn=forwarding number)
(cdn=called number)
1000 calls 2000
pattern ext-to-ext busy # cdn # 2 = pattern ext-to-ext busy # 3000 # 2
pattern ext-to-ext busy # fdn 2000 # 2
pattern ext-to-ext busy # cgn # 2 = pattern ext-to-ext busy # 1000 # 2
1000 is forwarded
Cisco
CallManager
# 2 = pattern ext-to-ext busy #
IP IP