I have tired all combos of inband, rfc2833, info, auto and I still can’t get touch tones to pass to banks etc to “press 3” to answer questions etc.
I am using * with SPA3000 Line1 for extension. SR is configured to register and work for both incoming and outgoing. I just am unable to get the touch tones to pass through.
i had a problem like that with my car insurance company. they werent compliant with in-audio, but rfc2833 and info. if it wont work with all three i would try manually sending the dtmf in the extension context and checking/debugging the output.
Well I retried to set / align up several sections to be the same then run test again.
sip.conf [voipacct-out] I set dtmfmode=info ;
sip.conf [1023] 'my extension that I call from’
dtmfmode=info ;
I set my sipura to have Txmode – info
upon calling 800-444-4444 and attempting to answer questions, I got
– Got SIP response 405 “Method Not Allowed – ccl-n01” back from 67.133.x.x
Does that mean my voip provider does not support info type of dtmf mode ?
— Now I changed all three to rfc2833 and charged ahead and tried call again.
I set the sipura dtmf Tx mode to AVT
Watching CLI mode for messages I see none when attempting to key numbers to respond to questions. The called no does not see to notice that I pressed anything either. I must not be getting rfc2833 working yet, something must be still incorrect.
– lastly I tried inband in all three placess.
Well, finally something worked! The called party recognized that I pressed a button.
Summary
info - 405 error shows in CLI mode
rfc2833 - no errors in CLI mode, called party does not detect buttons pressed.
inband - no messages in CLI during button pressing, called partey DOES detect buttons pressed.
Any suggestions for improvement ? Is this the best I can get ?