I have a Sip connection between a Cisco 2811 and a AudioCodes (Carrius) system. Call can be completed in both directions without any issues. Our issue is faxing. A fax will complete fine if the recieving fax is not set for "auto receive". From what I can tell the RTP stream is established and then the T38 negotiation occurs. When the fax is set for auto this does not occur. Has anyone experienced this issue?....Is there a way to "delay" the T38 setup to allow for the g711ulaw call to be established first...? Any help would be appreciated..