Hello, today I connected FS to my SIP-DDI SoftSwitch. It registered successfully, but not as expected at the register-proxy (sip2.ewetel.net), but at the proxy (proxy2.ewetel.net). My gateway config is this: <include> <gateway name="IPPBXSIPDDI"> <!--/// account username *required* ///--> <param name="username" value="ippbx"/> <!--/// auth realm: *optional* same as gateway name, if blank ///--> <param name="realm" value="sip2.ewetel.net"/> <!--/// domain to use in from: *optional* same as realm, if blank ///--> <param name="from-domain" value="sip2.ewetel.net"/> <!--/// account password *required* ///--> <param name="password" value="XXXXX"/> <!--/// proxy host: *optional* same as realm, if blank ///--> <param name="proxy" value="proxy2.ewetel.net"/> <!--/// send register to this proxy: *optional* same as proxy, if blank ///--> <param name="register-proxy" value="sip2.ewetel.net"/> <!--/// expire in seconds: *optional* 3600, if blank ///--> <param name="expire-seconds" value="60"/> <!--How many seconds before a retry when a failure or timeout occurs --> <param name="retry-seconds" value="30"/> </gateway> </include> The corresponding register request generated by FS is this: REGISTER sip:proxy2.ewetel.net;transport=udp SIP/2.0 Via: SIP/2.0/UDP 85.16.246.22;branch=z9hG4bK2FNpmSQHpZtye Via: SIP/2.0/UDP 85.16.246.6:5070;received=85.16.246.6;rport=5070;branch=z9hG4bK2FNpmSQHpZtye Max-Forwards: 69 From: <sip:ippbx@sip2.ewetel.net;transport=udp>;tag=QrFtyDUrpg94N To: <sip:ippbx@sip2.ewetel.net;transport=udp> Call-ID: 8bd8f32c-f759-11dd-bb38-778d64a5265f CSeq: 111011668 REGISTER Contact: <sip:gw+IPPBXSIPDDI@85.16.246.6:5070;transport=udp> Expires: 60 User-Agent: FreeSWITCH-mod_sofia/1.0.trunk-11698M Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO Supported: timer, precondition, path, replaces Authorization: Digest username="ippbx", realm="sip2.ewetel.net", nonce="4991527400000e269de527c4c699b9466bbf1e015cd0532c", cnonce="HE1PznH9Eiyb4QAUT+bjMA", algorithm=MD5, uri="sip:proxy2.ewetel.net;transport=udp", response="b5af17310919ec6b8f82acd4c89ffb9e", qop=auth, nc=00000001 Content-Length: 0 Shouldn't it register to register-proxy when it is given? regards Helmut