Version 5.2/5.4 59 January 2009
Troubleshooting Guide 10. IP Voice Mail and Unified Messaging
10.4 Message Waiting Indication Does Not Function
Table 10-4: MWI for Voice Mail Troubleshooting
Possible Cause Solution
1.
The IP voice mail system does
not send SIP NOTIFY
messages to the device.
Use Syslog or Wireshark to verify that the device receives
SIP NOTIFY messages from the IP voice mail system (for
example, if you are implementing Microsoft Exchange
Server 2007, the MWI service is provided by Geomant's
MWI2007 application and therefore, the NOTIFY is sent
from this application). The NOTIFY message should include
the following headers:
Messages-Waiting: yes or no
Message-Account: Extension number@GW IP address
Voice-Message: number of waiting message
If NOTIFY messages are not received from the IP voice mail
system, report this problem to the IP voice mail system
administrator.
2.
The Message Waiting
Inidication (MWI) digit pattern is
not configured when using
DTMF voice mail interface.
Ensure that the parameter EnableMWI is set to 1 and that
the digit patterns of the MWI on and off codes are
configured (using the Web interface's 'Voice Mail Setting
page - Web path SW Ver. 5.2: Protocol Management menu
> Advanced Applications submenu > Voice Mail; Web path
SW Ver. 5.4 and later: Configuration tab > Advanced
Applications menu > Voice Mail Settings), according to the
PBX's requirements.
3.
The MWI parameters are not
configured correctly when using
QSIG voice mail interface.
Ensure that the following parameters are configured as
follow:
ISDNIBehavior = 1073741824 (for Integer coding) or 0
(for Object Identifier coding)
SubscriptionMode = 1
EnableMWI = 1
DefaultNumber = ’serveduser’
4.
MWI is not enabled on the
device when using SMDI voice
mail interface.
Ensure that the parameter EnableMWI is set to 1.
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