Hello everyone, I'm using a SIP trunk to link my PBX and FS. My problem is when I try to call a softphone on FS from my ipphone, I've the following error on FS during Authentication : 2009-08-03 14:58:27.123817 [DEBUG] sofia.c:4554 IP [PBX IP@] Rejected by acl "domains". Falling back to Digest auth. 2009-08-03 14:58:27.235492 [DEBUG] sofia.c:4554 IP [PBX IP@] Rejected by acl "domains". Falling back to Digest auth. 2009-08-03 14:58:27.235492 [WARNING] sofia_reg.c:1755 Can't find user [@[FS IP@]] You must define a domain called '[FS IP@]' in your directory and add a user with the id="" attribute and you must configure your device to use the proper domain in it's authentication credentials. I defined my gateway to the PBX this way : <include> <gateway name="pbxlyon"> <param name="username" value="pbxlyon"/> <param name="realm" value="[PBX IP@]"/> <param name="password" value="pbxlyon"/> <param name="register" value="false"/> <param name="register-transport" value="udp"/> <param name="retry_seconds" value="300"/> </gateway> </include> I don't want the PBX to try to authenticate because I can't define a username nor a password for the authentication. Thank for you time. Best regards, Julien GONZALEZ.