[Freeswitch-users] Is RFC 4733 supported ?

Steve Underwood steveu at coppice.org
Thu Apr 23 08:17:09 PDT 2009


Michael Jerris wrote:
> rfc 4733 attempts (and fails miserably) to clarify rfc2833.  It 
> doesn't "really" change anything of any real substnace.  Our handling 
> of these packets tries very hard to be strict in what we send and 
> loose in what we accept and we tend to interoperate pretty well with 
> most endpoints.  That being said, there are some very broken endpoints 
> out there (such as sonus) that require special hacks, some are 
> automatic, some require settings.  All that being said, we should be 
> very compliant with both 2833 and 4733, although you will generally 
> see references in settings refer to 2833.
RFC4733 largely tries to clarify RFC2833 for the DTMF features. However, 
for most other signal it is very incompatible with RFC2833.

Steve





More information about the FreeSWITCH-users mailing list