Information Technology Reference
In-Depth Information
Two further DNs (15 and 16) are then configured that correspond to the MWI numbers that Unity dials to turn MWIs on and off.
In this example, DN 7780 is configured as the MWI on number, and DN 7781 is configured as the MWI off number using the
mwi on
and
mwi off
commands, respectively.
Next, the
ephone-dn
command is used to configure the directory number associated with each of the voicemail ports (in turn). In this
example, four ephone-dns are configured to allow the routing of a maximum of four voicemail calls to the Unity system at one time.
Three things to notice about the configuration of the four voicemail ephone-dns is that each points to the same extension (7777), that
they each have a different preference (0 to 3), and that the
no huntstop
command is configured (with the exception of the last ephone-
dn).
The
preference
and
no huntstop
commands ensure that CME can hunt through the ephone-dns until it finds a free port.
An ephone is then associated with each voice port using the
ephone
and
button
commands.
Under each of the four ephones is the
vm-device-id
id-string
command. This allows the Unity voicemail ports to register with the
CME using a device ID instead of a MAC address. In this example, the device IDs that Unity must be configured with to register with
CME are CiscoUM-VI1 to Cisco-UM-VI4.
In a deployment with multiple CMEs and a centralized Cisco Unity system, it is necessary to configure MWI relay between the CME
system at the central site (which is directly integrated with Cisco Unity) and the CME systems at the remote sites. The following
example shows configuration for MWI relay on the central site CME:
telephony-service
ip source-address
10.1.1.1
mwi relay
mwi expires
99999
voicemail
7777
The
mwi relay
command configures CME to relay MWI notification to remote CME systems and IP phones, and the
mwi expires
command configures the expiration timers for registration for MWI client to server in seconds.
