Hi,
I would like to test adding the following
header to the 100 Trying and 200 OK messages:
Allow-Events:
telephone-event
This is to try and interoperate with Cisco
equipment that behaves this way. As it stands, perhaps as a result of not
sending this header from our FreeSWITCH box, the Cisco is not offering RFC 2833
in the SIP ACK and therefore DTMF does not work (as they don't support SIP
INFO).
Is there any way of doing this in
FreeSWITCH? Many thanks.
Kind regards,
SebA