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Configure Voice Services

The Adaptive Services PIC supports the compressed real-time transport protocol (RTP) on the interface type vsp-fpc/pic/port. This enables voice over IP traffic to use low-speed links more effectively, by compressing the 40-byte IP/UDP/RTP header down to 2 to 4 bytes in most cases.

The voice services feature uses a bundle configuration similar to link services interfaces. For more information, see Configure Multilink and Link Services Logical Interface Properties. To configure voice services interface properties, include the following statements at the [edit interfaces] hierarchy level: 

[edit interfaces]

interface-name { 

    encapsulation ppp;

    unit logical-unit-number {

        family mlppp { 

            bundle vsp-fpc/pic/port;

        }

    }

}

vsp-fpc/pic/port {

    unit logical-unit-number {

        encapsulation mlppp;

        family inet { 

            address address;

        }

        compression {

            rtp {

                f-max-period number;

                port {

                    minimum port-number;

                    maximum port-number;

                }

                queues [ queue-numbers ];

            }

        }

    }

}

Voice services do not require a separate service rules configuration.

This chapter contains the following sections:

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