Integrating Voice Mail with Cisco Unified SRST
How to Integrate Voice Mail with Cisco Unified SCCP and SIP SRST
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Cisco Unified SCCP and SIP SRST System Administrator Guide
OL-13143-04
Redirecting to Cisco Unified Communications Manager Gateway
Note
The following task is required for voice-mail systems with BRI or PRI access.
In addition to supporting message buttons for retrieving personal messages, Cisco Unified SCCP SRST
allows the automatic forwarding of calls to busy and unanswered numbers to voice-mail systems.
Voice-mail systems with BRI or PRI access can log in to the calling phone’s mailbox directly. For this
to happen, some Cisco Unified CM configuration is recommended. If your voice-mail system supports
Redirected Dialed Number Identification Service (RDNIS), RDNIS must be included in the outgoing
SETUP message to Cisco Unified CM to declare the last redirected number and the originally dialed
number to and from configured devices and applications.
Step 1
From any page in Cisco Unified CM, click
Device
and
Gateway
.
Step 2
From the Find and List Gateways page, click
Find
.
Step 3
From the Find and List Gateways page, choose a device name.
Step 4
From the Gateway Configuration page, check
Redirecting Number IE Delivery - Outgoing
.
Configuring Call Forwarding to Voice Mail
Note
The following task is required for voice-mail systems with FXO or FXS access.
In addition to supporting message buttons for retrieving personal messages, Cisco Unified SCCP SRST
allows the automatic forwarding of calls to busy or unanswered numbers to voice-mail systems. The
forwarded calls can be routed to almost any location in the voice-mail system. Typically, calls are
forwarded to a location in the called number’s mailbox where the caller can leave messages.
Call Routing Instructions Using DTMF Digit Patterns
Cisco Unified SCCP SRST call-routing instructions are required so that forwarded calls can be sent to
the correct voice mailboxes. These instructions consist of DTMF digits configured in patterns that match
the dial sequences required by the voice-mail system to get to a particular voice-mail location. For
example, a voice-mail system may be designed so that callers must do the following to leave a message:
1.
Dial the central voice-mail number (1101) and press #.
2.
Dial an extension number (6000) and press #.
3.
Dial 2 to select the menu option for leaving messages in the extension number’s mailbox.
For Cisco Unified SCCP SRST to forward a call to a busy or unanswered number to extension 6000’s
mailbox, it must be programmed to issue a sequence of 1101#6000#2. As shown in
Figure 3
, this is
accomplished through the
voicemail
and
pattern
commands.