Hi, I have a FS gateway (SVN revision 14537) that is is receiving SIP calls from different source gateways and sending it to one single destination gateway. Now each source gateway can talk in one specific codec and FS itself is not doing any transcoding. So i enabled all possible codecs that this FS may receive from source gateways. The problem is that the source gateways who are talking in codec that are in first three preferred codecs list in sip profile are working fine, while the codecs that are at 4th or greater preference order number do not work. The call is received and accepted by destination gateway then it gets terminated almost immediately. Do note that destination gateway is not FS, its some CISCO device that is also accepting all possible codecs. Can you guys suggest why it is happening and what are the possible solutions, other then transcode of course. Thank you. -- Muhammad Shahzad ----------------------------------- CISCO Rich Media Communication Specialist (CRMCS) CISCO Certified Network Associate (CCNA) Cell: +92 334 422 40 88 MSN: shari_786pk@hotmail.com Email: shaheryarkh@googlemail.com