User's Manual

OpenMobility SIP Installation, Administration and Maintenance
Aastra DeTeWe Doc-ID: pm-0504 28.11.2006 Page: 32 (52)
• Explicit MWI Subscription
Some Media Server such as the Asterisk support Message Waiting
Indication (MWI) based on /15/. A MWI icon will be presented on a Aastra
Phone 142 if the user has received a voice message on his voice box
which is supported by the Media Server. If Explicit MWI Subscription is
enabled the OMM sends explicit for each PP a MWI Subscription
message to the Proxy or Outbound Proxy Server.
• RTP Port Base
Each RFP needs a continuous port area of 68 UDP ports for RTP voice
streaming. The RTP Port Base is the start port number of that area.
Default is 16320.
• Preferred Codec 1 – 5
Specifies a customized codec preference list which allows you to use the
preferred Codecs. The Codec 1 has the highest and Codec 5 the lowest
priority.
• Silence Suppression
Allows to configure whether Silence Suppression is preferred or not.
• DTMF Out-of-Band
The OMM supports DTMF based on /9/.
• DTMF Payload Type
If Out-of-Band is enabled the Payload Type specify the payload type
which is used for sending DTMF events based on /9/.