Table 4-3-10 Instruction of Media
Options
Definition
Premature Media
Some ISDN links send empty media frames before the call is in ringing or progress state. The SIP
channel will then send 183 indicating early media which will be empty - thus users get no ring
signal. Setting this to "yes" will stop any media before we have call progress (meaning the SIP
channel will not send 183 Session Progress for early media). Default is 'yes'. Also make
sure that the SIP peer is configured with progressinband=never. In order for 'noanswer'
applications to work, you need to run the progress() application in the priority before the app.
directmedia
Redirect the RTP media stream to go directly from the caller to the callee or not.
TOS for SIP Packets
Sets type of service for SIP packets
TOS for RTP Packets
Sets type of service for RTP packets
Sip Account Security
This analog gateway support TLS protocl for encrypting calls. On the one hand, it can work as TLS server, generate
the session keys used for the secure connection. On the other hand, it also can be registered as a client, upload
the key files provied by the server.
Figure 4-4-1 TLS settings
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