Hello * users, I have a problem with authenticating my SIP gateway endpoints with *. The gateway I'm using is an AudioCodes MP-124 (24 port) If I setup my sip.conf with an empty secret= option everything is working ok and I can initiate and receive calls, but if I want to be able to authenticate my SIP gateway with * something goes wrong. Below is a little snip of my sip.conf file: --- sip.conf --- [43300658] type=friend auth=md5,plaintext username=43300658 secret=123456 pickupgroup=1 callgroup=1 dtmfmode=inband host=dynamic defaultip=10.1.1.138 canreinvite=yes --- end of sip.conf --- I've been running tcpdump on the * server and by studying these files I can see that the AudioCodes endpoint is registering just fine: ------ Request: REGISTER sip:10.1.1.51 Status: 100 Trying Status: 407 Proxy Authentication Required Request: REGISTER sip:10.1.1.51 (But now with digest information) Status: 100 Trying Status: 200 Ok ------ To me this looks just fine and the endpoint is now registered. But if I try to initiate a call from the endpoint something goes wrong, the tdcpdump is showing that the SIP gateway is sending a INVITE to the * server which replys with a 407 packet. The gateway then re-INVITE with digest information but somehow the call doesn't get through, and after a while * displays this on the console: ------- chan_sip.c:495 retrans_pkt: Maximum retries exceeded on call 109652920429204cyKW-43300658--43300634@10.1.1.138 for seqno 63322 (Response) ------- I've attached a SIP debug log from the * console, sorry for the length of it. BTW: The endpoint has no problems in receiving calls. I've searched high and low for a solution to this problem, and also tried a lot of different configurations, but without luck. Kind regards Mickey Binder