Hello , I ve setup my sems on the same box with a kamailio. Kamailio is bound to the public IP and SEMS to 127.0.0.1 I am only using SBC profile. In sems.conf I have
sip_ip: 127.0.0.1:5757 media_ip: <public_ip_of_the_box> and next_hops and outbound_proxy are not set. A call comes from outside into kamailio which sends it to sems for SBCing. Sems decides the next hop by looking into application parameter headers that are set by kamailio. Communication between kamailio and sems is fine. The problem is that SEMS cannot send its initial INVITE to outside world: In the debug messages it reports that it checks the DNS of the next_hop, it calls send_to and then send_to function returns "Invalid argument" which causes SEMS to report a 400 Bad request back to Kamailio: May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [send_request, trans_layer.cpp:980] DEBUG: Sending to x.x.x.x:5060 <INVITE sip:[email protected]:...> May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [send, transport.cpp:109] DEBUG: send msg May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [send, transport.cpp:125] ERROR: sendto: Invalid argument May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [send_request, trans_layer.cpp:988] ERROR: Error from transport layer May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [sendRequest, AmSipDialog.cpp:1135] ERROR: Could not send request: method=INVITE; call-id=2CCEB7CF-5193AD9700045DF0-B5CFEB40; cseq=10 May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [onB2BEvent, AmB2BSession.cpp:1254] DEBUG: sending INVITE failed, relaying back error reply May 15 18:45:27 sip2 sems[26168]: [#b5dffb40] [onB2BEvent, AmB2BSession.cpp:1259] DEBUG: relaying B2B SIP reply 400 Bad Request Any ideas? Thanks a lot, Bill
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