Installation guide

Phone System Overview 209
Configuring Identified Subscriber Messaging
The messaging system uses identified subscriber messaging (ISM) to enable internal callers to leave messages for
subscribers when their calls are forwarded to the messaging system from another extension.
The messaging system plays the recorded name of the calling subscriber before the message.
To configure identified subscriber messaging
1. In the Navigation Pane, click System > Switch > Switch Information.
See the Switch > Information table and your phone system documentation for detailed information about
Integration options.
2. In the Integration options field, type one of the following:
3. Click Save.
Related Topics
Configuring Integration Options
Mapping or Routing Trunks
Activating General Tone Detection
Configuring Phone System Soft Keys
Phone System Overview
Settings
Phone System
configuration
Description
ism=1
Unsecured mode Internal callers hear the subscriber greeting before being
prompted to leave a message. The message is identified as
originating from the subscriber box of the extension where the
call is made. A subscriber using another extension enters a
personal ID and security code, the messaging system identifies
the call as originating from the subscriber’s extension.
ism=2
Secured mode The messaging system prompts the calling subscriber for a
security code and does not play the greeting of the called
subscriber.
ism=0
Disabled The messaging system considers all messages to be from
unidentified callers.
ISVM=n
1,n2
Integrated Soft key
Visual Menu
DTU phones with soft keys remain in soft key mode only when
the messaging system detects user input within a specified
length of time. Set the length of time using the ISVM=n1,n2
setting as follows:
Valid entries for n1 and n2 are 1 to 100 seconds. Type -1 to
prevent soft keys from timing out. For example, to set the Start
timer to 30 seconds and the Play timer to infinity, type
ISVM=30,-1. To disable soft keys type ISVM=0.