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disable dtmf

Hello,

how can I disable dtmf signals for a specific call (route pattern/dial-peer, stc)?

Thanks,

1 REPLY
Silver

Re: disable dtmf

If you are using high bandwidth codec, like g711, then the dtmf digits will be transmitted as part of the RTP stream and hence you cannot disable it.

If you use a low bandwidth codec, like g729, there are chances that the dtmf signals can get distored during compression/decompression and hence the gateway will need to be setup to relay dtmf signals out of band. If you do not configure dtmf-relay on the gateways, that might help in this situation. That is not actually disabling dtmf, because the dtmf can still be transmitted via the RTP stream and there are chances that the dtmf is still clear even after the codec compression.

DTMF relay is not enabled by default in gateways.

Regards,

Anup

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