Difference between revisions of "DTMF problems"
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## In [[Asterisk CLI]] type: logger reload | ## In [[Asterisk CLI]] type: logger reload | ||
# Change DTMF type to RFC2833 (if it is other type) | # Change DTMF type to RFC2833 (if it is other type) | ||
# In ''/etc/asterisk/sip.conf'' set '''relaxdtmf=yes''' and '''rfc2833compensate=yes''' and reload Asterisk | # In ''/etc/asterisk/sip.conf'' in '''[general]''' section set '''relaxdtmf=yes''' and '''rfc2833compensate=yes''' and reload Asterisk | ||
# Change Provider | # Change Provider | ||
Revision as of 10:35, 27 December 2009
DTMF digits are skipped
DTMF is handled by Asterisk. If some digits are missing - that means that your Provider is not delivering DTMF codes correctly.
Possible steps to fix situation:
- Enable debug mode in the Asterisk CLI to be informed of DTMF events
- In /etc/asterisk/logger.conf make sure you have such line at the end: console => notice,warning,error,dtmf
- In Asterisk CLI type: logger reload
- Change DTMF type to RFC2833 (if it is other type)
- In /etc/asterisk/sip.conf in [general] section set relaxdtmf=yes and rfc2833compensate=yes and reload Asterisk
- Change Provider
Provider is not sending DTMF info
To check this:
- Enable dtmf log and sip debug log
- Make a call, check for such line
Non-codec capabilities (dtmf): us - 0x1 (telephone-event), peer - 0x0 (nothing), combined - 0x0 (nothing)
If you got this - that means provider is not delivering DTMF info in the SIP packet. Send him sip debug info and ask to fix this.
Correct line should look like this:
Non-codec capabilities (dtmf): us - 0x1 (telephone-event), peer - 0x1 (telephone-event), combined - 0x1 (telephone-event)
See also:
