How to force SBC to convert INFO into RFC2833?
Hello fellows.
I met a problem: DTMFs do not work when sent in direction from called to calling party. Called party sends DTMFs in out-of-band mode, as INFO methods, although both calling and called party support RFC2833. Since pt 101 is presented on both sides of SBC the condition for INFO/RFC2833 conversion is not met, so SBC simply forwards INFO methods from B to A. Calling party does not support INFO method and rejects it with 488.
I wonder is there any additional option to force SBC to convert INFOs into RFC2833 if INFO method is not supported on one call leg?