Hi,
I'm using
freeswitch to receive incoming calls from a sip provider namely AQL. When my
freeswitch box is connected directly to the internet everything works fine. When
I place a firewall/router inbetween the box and the internet, the software
registers with the sip provider ok and answers calls but fails to respond to in
call dtmf tones. AQL advised me to make sure I was using RFC2833 which I believe
I have done by setting dtmf-type in my sip profile xml to
'RFC2833'.
Can anyone advise
me as to what other settings I should change to make the dtmf work correctly
across the firewall/router? The router is currently set to allow all
traffic.
Many thanks for
any help you can give.
regards
Andy