Avaya G250 Administration page 120

Configuring VoIP QoS
Use the ip rtp non-tcp-mode command to set the header compression mode.
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When set to ietf, the command performs IP header compression according to IPHC
RFCs. When set to non-ietf, the command performs IP header compression
compatible with other vendors, which do not strictly follow the RFCs. The default header
compression mode is non-ietf.
Note:
IETF mode is not compatible with non-IETF mode.
Note:
Use the ip rtp port-range command to configure the range of UDP ports for RTP.
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G350-001(config-if:Dialer 1)# ip rtp compression-connections 48
Done!
G350-001(config-if:Dialer 1)# ip tcp compression-connections 48
Done!
G350-001(config-if:Dialer 1)# ip rtp max-period 512
Done!
G350-001(config-if:Dialer 1)# ip rtp max-time 20
Done!
G350-001(config-if:Dialer 1)# ip rtp non-tcp-mode ietf
Done!
G350-001(config-if:Dialer 1)# ip rtp port-range 40000 50000
Done!
2. Use the ip rtp header-compression command to enable RTP, TCP, and UDP header
compression on the current interface. The compression method employed is IPHC.
G350-001# interface dialer 1
G350-001(config-if:Dialer 1)# ip rtp header-compression
Done
Note:
Once header compression is enabled, any change to a header compression
Note:
parameter goes into effect immediately.
To disable IPHC-type RTP, TCP, and UDP header compression on an interface, use the no ip
rtp header-compression command in the interface context.
120 Administration for the Avaya G250 and Avaya G350 Media Gateways