[Freeswitch-users] Codec Mismatch Because of Different Frame Size

I'm using the following configuration: vars.xml: <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G729,PCMU,PCMA,G723,G7221@32000h,G7221@16000h,G722,GSM"/> <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=G729,PCMU,PCMA,G723,GSM"/> external.xml (my standard sip profile): <param name="inbound-codec-negotiation" value="greedy"/> <param name="inbound-late-negotiation" value="false"/> <param name="disable-transcoding" value="true"/> With this configuration I want to restrict the allowed codecs, force the usage of G729 as first choice, if available and to minimize the calls with transcoding. I don't want to force the usage of a specific frame size. Now a lot of calls get rejected with "incompatible destination" by FreeSwitch, because the frame size of the incoming calls differs from the Freeswitch default (mostly 20 ms), see the debug log below. Is this the intended behaviour? If it is, how can I circumvent it? Do I have to list every codec with every possible frame size in the global_codec_prefs list? Thank you in advance Jan 2010-09-30 10:25:45.798068 [DEBUG] sofia.c:4469 Channel sofia/external/0049xxx@X.X.X.X entering state [received][100] 2010-09-30 10:25:45.798068 [DEBUG] sofia.c:4480 Remote SDP: v=0 o=- 554229 1 IN IP4 X.X.X.X s=- c=IN IP4 X.X.X.X t=0 0 a=sendrecv m=audio 26044 RTP/AVP 18 4 0 8 96 101 a=fmtp:18 annexb=yes a=rtpmap:96 G726-32/8000 a=rtpmap:101 telephone-event/8000 a=ptime:60 a=silenceSupp:off - - - - 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[G729:18:8000:20:8000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[G729:18:8000:20:8000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[G729:18:8000:20:8000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[G729:18:8000:20:8000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[G729:18:8000:20:8000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[G729:18:8000:20:8000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[PCMU:0:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[PCMU:0:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[PCMU:0:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[PCMU:0:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[PCMU:0:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[PCMU:0:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[PCMA:8:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[PCMA:8:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[PCMA:8:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[PCMA:8:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[PCMA:8:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[PCMA:8:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[G7221:115:32000:20:48000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[G7221:115:32000:20:48000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[G7221:115:32000:20:48000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[G7221:115:32000:20:48000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[G7221:115:32000:20:48000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[G7221:115:32000:20:48000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[G7221:107:16000:20:32000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[G7221:107:16000:20:32000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[G7221:107:16000:20:32000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[G7221:107:16000:20:32000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[G7221:107:16000:20:32000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[G7221:107:16000:20:32000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[G722:9:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[G722:9:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[G722:9:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[G722:9:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[G722:9:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[G722:9:8000:20:64000] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G729:18:8000:60:0]/[GSM:3:8000:20:13200] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G723:4:8000:60:0]/[GSM:3:8000:20:13200] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMU:0:8000:60:0]/[GSM:3:8000:20:13200] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [PCMA:8:8000:60:0]/[GSM:3:8000:20:13200] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [G726-32:96:8000:60:0]/[GSM:3:8000:20:13200] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4233 Audio Codec Compare [telephone-event:101:8000:60:0]/[GSM:3:8000:20:13200] 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.798068 [DEBUG] sofia_glue.c:4335 Set 2833 dtmf send/recv payload to 101 2010-09-30 10:25:45.799052 [DEBUG] switch_core_state_machine.c:314 (sofia/external/0049xxx@x.x.x.x) Running State Change CS_NEW 2010-09-30 10:25:45.799052 [DEBUG] switch_core_state_machine.c:320 (sofia/external/0049xxx@x.x.x.x) State NEW 2010-09-30 10:25:45.799052 [DEBUG] switch_channel.c:2359 (sofia/external/0049xxx@x.x.x.x) Callstate Change DOWN -> HANGUP 2010-09-30 10:25:45.799052 [DEBUG] switch_core_state_machine.c:314 (sofia/external/0049xxx@x.x.x.x) Running State Change CS_HANGUP 2010-09-30 10:25:45.799052 [NOTICE] sofia.c:4686 Hangup sofia/external/0049xxx@x.x.x.x [CS_NEW] [INCOMPATIBLE_DESTINATION] -- Jan Riedinger Phone : +49-30-39 73 19 66 Dipl.-Inf. | Managing Director Fax : +49-30-39 73 19 64 E-Mail: riedinger@sns.eu SNS Consult GmbH ICQ : 163-237-041 Südwestkorso 49a MSN : jan@sns-consult.de 14197 Berlin GERMANY Skype : Jan Riedinger AG Charlottenburg - HRB 71973