[Freeswitch-users] sofia: disable support for UPDATE message in SIP Accept header

Hello. I'd like to remove UPDATE value from SIP Accept header when creating SIP calls. We're sending it in INVITE message and our provider uses that for in-call keep-alive checks every 10 minutes. FreeSwitch doesn't respond to that, so our provider disconnects RTP and call is dropped. According to RFC3311 we can indicate that we don't support this by not sending UPDATE in Accept header. Is this gonna help? Is there any way to drop that from SIP headers from dialplan? Or do I have to change source code? Or better, is there any other (cleaner) way to resolve this? Regards Michal Zubac ComGate Interactive s.r.o.