TELES VoIP Box BRI Series, Reference Manual

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5 Additional VoIP parameters
VoIPBox DSL / VoIPBox BRI – version 21.0.009 Page 108
5.8 Compression parameters
The following parameters are for RTP multiplexing, which ag-
gregates RTP packets (voice user data) for individual VoIP calls
into a packet. The header (for Ethernet, IP, UDP and RTP) is
sent only once for all calls instead of for each individual call.
The relationship between header and payload benefits the
payload when several calls occur simultaneously. This com-
pression does not result in any loss in voice quality.
This feature is possible with a TELES peer and requires the fol-
lowing entries in the VoIP profile:
Table 5.10 Customized parameters: VoIP compression
VoIP Compression Parameters
VoipAggOwnDataPort=<port>
VoipAggOwnDataPort=29500
Enter the own port number used for aggregated packets. Default: 29500.
VoipAggRemoteDataPort=<port>
VoipAggRemoteDataPort=29500
Enter the port for the VoIP peer that is used for aggregated packets (compressed data).
Default: 29500.
VoipAggRemoteRtpPort=<port>
Enter the port for the VoIP peer that is the first RTP port. The next port is always the cor-
responding RTCP port. The port that is two numbers higher will be used for the next VoIP
channel. Default 29000.
VoipAggRemoteRtpPortSpacing=<count>
Defines the space between the ports used for the peer’s individual RTP streams (default
2).