Manual

5
Cisco Unified Communications Manager Express SIP Trunk Integration Guide for Cisco Unity Connection Release 9.x
OL-20348-01
Planning How the Voice Messaging Ports Will Be Used by Cisco Unity Connection
Planning How the Voice Messaging Ports Will Be Used by
Cisco Unity Connection
Before programming the phone system, you need to plan how the voice messaging ports will be used by
Cisco Unity Connection. The following considerations will affect the programming for the phone system
(for example, setting up the hunt group or call forwarding for the voice messaging ports):
• The number of voice messaging ports installed.
For a Cisco Unity Connection cluster, each Cisco Unity Connection server must have enough ports
to handle all voice messaging traffic in case the other server stops functioning.
• The number of voice messaging ports that will answer calls.
• The number of voice messaging ports that will only dial out, for example, to send message
notification, to set message waiting indicators (MWIs), and to make telephone record and playback
(TRAP) connections.
The following table describes the voice messaging port settings in Cisco Unity Connection that can be
set on Telephony Integrations > Port of Cisco Unity Connection Administration.
The Number Voice of Messaging Ports to Install
The number of voice messaging ports to install depends on numerous factors, including:
• The number of calls Cisco Unity Connection will answer when call traffic is at its peak.
Table 1 Settings for the Voice Messaging Ports
Field Considerations
Enabled Check this check box.
Server (When a Cisco Unity Connection cluster is configured) Select the
name of the Cisco Unity Connection server that you want to handle
this port.
Assign an equal number of answering and dial-out voice messaging
ports to the Cisco Unity Connection servers so that they equally share
the voice messaging traffic.
Answer Calls Check this check box.
Caution All voice messaging ports connecting to the Cisco
Unified CM server must have the Answer Calls box
checked. Otherwise, calls to Cisco Unity Connection may
not be answered.
Perform Message Notification Check this check box to designate the port for notifying users of
messages.
Send MWI Requests Check this check box to designate the port for turning MWIs on and
off.
Allow TRAP Connections Check this check box so that users can use the phone as a recording
and playback device in Cisco Unity Connection web applications.