Can not make otubound call from communicator client RRS feed

  • Question


    I make outbound call from office communicator. But getting error code 504. The event viewer log as follow :


    A SIP request made by Communicator failed in an unexpected manner (status code 80ef01f8). More information is contained in the following technical data:

    RequestUri: sip:+0811892178@office.com;user=phone

    From: sipTongue Tiedinjo@office.com;tag=1faf320bb8

    To: sip:+0811892178@office.com;user=phone;tag=46D0252A8D0BB7B252A770834B2A83FF

    Call-ID: 8c77251d9ef4451e99315c0f1ef8713e

    Content-type: application/sdp;call-type=audiovideo


    o=- 0 0 IN IP4


    c=IN IP4


    t=0 0

    m=audio 42112 RTP/AVP 114 111 112 115 116 4 8 0 97 101


    a=candidate:kCLydvb2gB2pZc4YN/XICUBN3xcSJ7CVbyL1H1XgflY 1 JYjfZ1OYh4rks2bZTb/Kwg UDP 0.850 42112

    a=candidate:kCLydvb2gB2pZc4YN/XICUBN3xcSJ7CVbyL1H1XgflY 2 JYjfZ1OYh4rks2bZTb/Kwg UDP 0.850 9472

    a=cryptoscale:1 client AES_CM_128_HMAC_SHA1_80 inline:NlgWw1YV/MWHOZgR6Ey8X4eClNpF9fsfrBz79LUT|2^31|1:1

    a=crypto:2 AES_CM_128_HMAC_SHA1_80 inline:T/HLzDAsV28FNpgdMlSZ+D07mk2ehzXGwzf4eVcS|2^31|1:1



    a=rtpmap:114 x-msrta/16000

    a=fmtp:114 bitrate=29000

    a=rtpmap:111 SIREN/16000

    a=fmtp:111 bitrate=16000

    a=rtpmap:112 G7221/16000

    a=fmtp:112 bitrate=24000

    a=rtpmap:115 x-msrta/8000

    a=fmtp:115 bitrate=11800

    a=rtpmap:116 AAL2-G726-32/8000

    a=rtpmap:4 G723/8000

    a=rtpmap:8 PCMA/8000

    a=rtpmap:0 PCMU/8000

    a=rtpmap:97 RED/8000

    a=rtpmap:101 telephone-event/8000

    a=fmtp:101 0-16



    Response Data:

    101 Progress Report

    ms-diagnostics: 12006;reason="Trying next hop";source="ocsesi.office.com";PhoneUsage="CN={EBE98514-198D-419A-B204-4C9BA00B1025},CN=Phone Route Usages,CN=RTC Service,CN=Microsoft,CN=System,DC=office,DC=com";PhoneRoute="All Calls";Gateway="mediation:5061";appName="OutboundRouting"


    504 Server time-out

    ms-diagnostics: 1007;reason="Temporarily cannot route";source="ocsesi.office.com";ErrorType="Connect Attempt Failure";WinsockFailureDescription="The peer did not respond to the connection attempt";WinsockFailureCode="274C(WSAETIMEDOUT)";Peer="mediation"


    If this error continues to occur, please contact your network administrator. The network administrator can use a tool like winerror.exe from the Windows Resource Kit or lcserror.exe from the Office Communications Server Resource Kit in order to interpret any error codes listed above.

    For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.



    Any one can help what i should do?


    Tuesday, July 8, 2008 12:54 PM

All replies

  • It appears that your clients cannot connect to the mediation server

    Make sure there is no firewall in between clients need to contact the mediation server directly


    Check that all services are started on the mediation server

    Tuesday, July 8, 2008 7:20 PM
  • Hello, I'm encountering the same error. All services are running on mediation server and no errors are recorded in the event log.

    Tuesday, October 28, 2008 2:29 PM
  • Please post logs from Mediation Server.  Next hop is from Mediation Server to Gateway or SIP Device.  Lets look at the invite going out.  Sounds like the Gateway does not know how to route the call.  Could be an issue with the E.164 formated number.



    Monday, November 24, 2008 11:52 PM