The SIP miscellaneous folder helps you set other tone dialing properties.
- DTMF transmission – set the DTMF transmission method:
- RTP DTMF
- info (RFC(2976)
- Auto delay – set the sound delay timeout in ms in the range of 0 to 2000 ms. Used for DTMF suppression in the voice channel. The minimum DTMF suppression timeout is 1 ms. By setting the time value to 0 ms, you disable the sound delay function.