Dear support Could you take a look and give me comments about this problem? Here is the info: ------------------ Background ------------------ I bought a sangoma card and license. Now I can make SIP<->PSTN call. For some special application, we need to fetch the raw isup message from sangoma/wanpipe layer to freetdm layer, and vice versa. ------------------ Problem: ------------------ While, at sangoma layer, it just provides the structure like SiConEvnt in sit.x. If I want to push raw-isup to freetdm, I need to re-encode from the structure. And more, if I want to pass one presented ISUP from freetdm to wanpipe, I have to re-decode firstly and then push the decoded info to the structure. Is there anyway to get/push raw ISUP message between freetdm and sangoma/wanpipe? That also would be accept to do code change on sangoma/wanpipe code if possible. windy 2013-06-07