Carrier Access CMG Router RFC2833 Options Signals, Payload Type, Repeat Count, Repeat Interval

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Voice Channels

VOIP Algorithm Preference Order - Defines the order preference of voice coding algorithms for VoIP calls, on the specified voice channel(s). Up to 6 algorithms can be listed, in order of preference. This list limits the acceptable codecs for a particular voice channel to those specified. This can be used to limit voice channels that have a modem or fax machine attached to use only G.711. Default settings list all algorithms, selections can be changed to none.

RFC2833 Options

Signals

<disable> - Disable signaling in RTP payloads. Default. <abcd> - Use abcd signaling in RTP payloads.

Payload Type

<default> - Will be the value of the DTMF relay telephone event payload type. Default. <number> - Range between 96-127.

Repeat Count

Set the number of initial RTP message repeats at the time of signal transition. Range is 0-10 repeats. Default is 2.

Note: a repeat of 2 times, in essence is a message, followed by 2 repeats.

Repeat Interval

Set the interval of RTP messages at the time of transition in milliseconds. Range is 1-50 milliseconds, with a default of 5.

Refresh Interval

Set the periodic refresh interval of RTP signaling states. Range is 500-4000 milliseconds, with a default of 4000.

3-46 CMG Router - Release 2.7