I have found a strange thing in my FS installation, FS is registered via a Gateway to an external provider (QSC) in the external context. But when a call is coming in, FS does not seem to go to any context, but tries to lookup the user, as I receive the following message 2009-08-27 18:44:23.287782 [WARNING] sofia_reg.c:1773 Can't find user [026xxxxxxxxx@my.domain@my.domain] You must define a domain called 'my.domain' in your directory and add a user with the id="026xxxxxxxxx@my.domain" attribute and you must configure your device to use the proper domain in it's authentication credentials. I learnt that a call from an external gateway should go to the public context. But (in CLI debug mode) there are no other messages, except the 3 lines above. What am I doing wrong? Best regards Peter Here the invite message. INVITE sip:gw+gw_xxxxxxxxxx@xx.xxx.xx.xxx:5080;transport=udp SIP/2.0. Via:SIP/2.0/UDP 62.206.3.xxx;branch=z9hG4bK-BroadWorks.as1-xx.xxx.xx.xxxV5080-0-778271239-1616003581-1251392025611-. From:"0xxxxXXXXXX"<sip:0xxxxXXXXXX@62.206.3.xxx;user=phone>;tag=1616003581-1251392025611-. To:"Me"<sip:026xxxxxxxxx@my.domain>. Call-ID:BW185345611270809356816303@62.206.3.xxx. CSeq:778271239 INVITE. Contact:<sip:62.206.3.xxx:5060>. Allow:ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY,UPDATE. Accept:multipart/mixed,application/dtmf,application/dtmf-relay,application/media_control+xml,application/sdp. Supported:. Max-Forwards:20. Proxy-Authorization:DIGEST cnonce="fyvqi2pf",qop=auth,uri="sip:gw+gw_026xxxxxxxxx@xx.xxx.xx.xxx:5080;transport=udp",realm="my.domain",username="026xxxxxxxxx@my.domain",nonce="21bbe70c-932a-11de-b94d-bbade892ded3",algorithm=MD5,response="6d39a2546a4aa9a1fc39e2dc07c1e934",nc=00000001. Content-Type:application/sdp. Content-Length:344. . v=0. o=BroadWorks 1271473 1 IN IP4 87.234.9.178. s=-. c=IN IP4 87.234.9.178. t=0 0. m=audio 18534 RTP/AVP 8 0 2 99 18 110. a=rtpmap:99 G726-24/8000. a=rtpmap:110 X-NSE/8000. a=fmtp:110 192-194,200-202. a=X-sqn:0. a=X-cap: 1 audio RTP/AVP 110. a=X-cpar: a=rtpmap:110 X-NSE/8000. a=X-cpar: a=fmtp:110 192-194,200-202. a=X-cap: 2 image udptl t38.