I'm "playing" with SER trying to understand how it all works, and to be completely honest I haven't finished reading all the docs. Basically I'm using the default ser.cfg (installed in /usr/local/etc/ser) and I have two 7960s with the latest SIP code. I know it works, since I can call the other phone with our user(a)iptel.org extension ... The 2nd line is setup to register to sip.voiping.com [192.70.239.1]. Immediately the phone gets to trying, I have ser running to "not fork, debug 3, and log to stderr". ngrep indicates the following: U 192.70.239.150:53087 -> 192.70.239.1:5060 REGISTER sip:sip.voiping.com SIP/2.0..Via: SIP/2.0/UDP 192.70.239.150:5060..From: sip:lenny@sip.voiping.com..To: sip:lenny@sip. voiping.com..Call-ID: 00036b54-b62d1fe8-314ef9d4-1cca7f7b@192.70.239.150..Date: Tue, 04 Feb 2003 18:07:32 GMT..CSeq: 101 REGIST ER..User-Agent: CSCO/4..Contact: <sip:lenny@192.70.239.150:5060>..Content-Length: 0..Expires: 3600.... # U 192.70.239.1:5060 -> 192.70.239.150:5060 SIP/2.0 483 Too Many Hops..Via: SIP/2.0/UDP 192.70.239.150:5060..From: sip:lenny@sip.voiping.com..To: sip:lenny@sip.voiping.com ;tag=e755c894a31056969aa313d5267cd575.f7b7..Call-ID: 00036b54-b62d1fe8-314ef9d4-1cca7f7b@192.70.239.150..CSeq: 101 REGISTER..Se rver: Sip EXpress router (0.8.10 (i386/freebsd))..Content-Length: 0..Warning: 392 192.70.239.1:5060 "Noisy feedback tells: pid= 71976 req_src_ip=192.70.239.1 in_uri=sip:sip.voiping.com out_uri=sip:sip.voiping.com via_cnt==12".... I would appreciate any advice in getting this going (btw, I compiled the version of SER 0.8.10 and didn't use the already compiled binaries). Thanks, Lenny --- Lenny Tropiano E-mail: lenny(a)voiping.com Partner, Networking Specialist Pager: pager-lenny(a)voiping.com VoIPing, LLC URL: http://www.voiping.com/ PO Box 867, Cedar Park, TX 78630-0867 Mobile: 512-698-VOIP [8647]