But there is only two 30ms variants,SWITCH_CODEC_TYPE_AUDIO, 97, "iLBC", "mode=20",SWITCH_CODEC_TYPE_AUDIO, 98, "iLBC", "mode=30",SWITCH_CODEC_TYPE_AUDIO, 102, "iLBC", "mode=30",Why FS INVITE with mode=30 and 97 but not 98/102 as I'm using iLBC@30i ?v=0o=FreeSWITCH 6662257026041736756 6335871247713715835 IN IP4 202.102.135.76s=FreeSWITCHc=IN IP4 202.102.135.76t=0 0m=audio 20820 RTP/AVP 97 101 13a=rtpmap:97 iLBC/8000a=fmtp:97 mode=30a=rtpmap:101 telephone-event/8000a=fmtp:101 0-16a=rtpmap:13 CN/8000a=ptime:30