i’ve got an Asterisk 1.4.24.
here is my scenario:
phone (A) -> telco —> network —> ISDN -> gateway — iax2 ----> Asterisk (B)
my asterisk is connected in iax2 with a isdn/iax gateway
My phone (A) can only send in-band dtmf.
- Is it possible to send in-band dtmf during call setup?
- Is asterisk (B) capable to receive in-band dtmf during call setup (without answering)?
the read() cmd has an option “noanswer” that should do the trik.
i made some test and it seams to me that it works only if i put an answer() on top of my dialplan.
thank you very much.