Installation, Administration and Maintenance
Aastra Telecom Page: 31 (47)
you have a Session Border Controller in your network, then you
would normally set its address here. Optional.
• Outbound Proxy Port
The proxy port on the proxy server to which the OMM sends all
SIP messages. Optional.
• 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 an Aastra DECT 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
Used to configure whether Silence Suppression is preferred or
not.
• DTMF Out-of-Band
The OMM supports DTMF based on Section 1.3 reference /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 Section
1.3 reference /9/.
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