5-5
Cisco VG248 Analog Phone Gateway Software Configuration Guide
OL-1209-02
Chapter 5 Integrating Cisco CallManager with Voice Mail Systems Using SMDI
Choosing a Configuration Option
Basic Configuration
In the basic configuration (see
Figure 5-1
), you can use a single VG248 device to
connect up to 48 voice channels to a voice mail system. This configuration
enables you to use your existing voice mail system and integrate it with
Cisco CallManager using SMDI.
When using the VG248 in this configuration, you have a more flexible failover
system than when using a single Cisco CallManager server for SMDI integration.
When connecting SMDI directly to Cisco CallManager, if that
Cisco CallManager system fails, the SMDI link goes down. The link cannot
automatically be switched or transferred to another Cisco CallManager system.
However, if you are using the VG248 and the primary Cisco CallManager system
fails, the VG248 automatically switches to its backup Cisco CallManager system,
and the SMDI link remains.
Configuration Tips
When configuring the VG248 using the basic configuration, refer to these tips.
Note, however, that this is not a complete list of the items you must configure;
these are tips specific to the basic configuration. Refer to the
“Configuring SMDI
Settings on the VG248” section on page 5-19
for a description of all SMDI
configuration tasks.
•
The VG248 should be set to forward MWI commands to Cisco CallManager.
See the
“Forwarding MWIs to Cisco CallManager” section on page 5-24
for
details.
•
If the VG248 is set to forward MWI commands to Cisco CallManager, you
must set the MWI directory numbers in Cisco CallManager. See the
“Identifying the Directory Number for Setting MWI on Cisco CallManager”
section on page 5-26
and
“Identifying the Directory Number for Clearing
MWI on Cisco CallManager” section on page 5-27
.