sip.conf(configuration from database): context from_anon_sip allowguest no allowoverlap no udpbindaddr 0.0.0.0 transport udp,ws,wss tcpenable no tcpbindaddr 0.0.0.0 tlsenable no srvlookup yes disallow all allow ulaw allow alaw allow g729 allow g723 allow gsm allow speex trustrpid no sendrpid rpid dtmfmode rfc2833 videosupport no maxcallbitrate 384 alwaysauthreject yes rtptimeout 60 rtpholdtimeout 300 allowsubscribe no t38pt_udptl yes,redundancy,maxdatagram=1024 nat force_rport,comedia directmedia no directrtpsetup no rtcachefriends yes rtsavesysname yes rtupdate yes rtautoclear 3600 ignoreregexpire no progressinband never callcounter yes use_q850_reason no defaultexpiry 60 maxexpiry 60