UM integration with 3CX issue. Ringing and no answer

Discussion in '3CX Phone System - General' started by fceledon, Apr 30, 2010.

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  1. fceledon

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    I trying to intergrate the 3cx Ip-PBX with Exchange Server UM. The connection between both systems looks ok, in fact,

    Kindly remember to use code and /code tags when posting server logs, this time it has been done for you - MFM


    On the 3CX side the sequence is:
    Code:
    SDP:Request: INVITE sip:9999@sip.XXXX.com:5060 SIP/2.0; SDP:SessionName=3cxVCE Audio Call, Version=0, MediaDescription=audio 40016 RTP/AVP 0 8 3 101
    SIP:Response: SIP/2.0 100 Trying
    SDP:Request: INVITE sip:9999@exchange.XXXX.com:5060;transport=TCP SIP/2.0; SDP:SessionName=3cxPS Audio call, Version=0, MediaDescription=audio 7086 RTP/AVP 0 8 3 13 18 110 99 101
    SIP:Response: SIP/2.0 100 Trying
    SIP:Response: SIP/2.0 302 Moved Temporarily
    SIP:Request: ACK sip:9999@exchange.XXXX.com:5060;transport=TCP SIP/2.0
    SDP:Request: INVITE sip:9999@exchange.XXXX.com:5065;transport=TCP SIP/2.0; SDP:SessionName=3cxPS Audio call, Version=0, MediaDescription=audio 7086 RTP/AVP 0 8 3 13 18 110 99 101
    SIP:Response: SIP/2.0 100 Trying
    SIP:Response: SIP/2.0 180 Ringing
    SIP:Response: SIP/2.0 180 Ringing
    SIP:Request: CANCEL sip:9999@exchange.XXXX.com:5065;transport=TCP SIP/2.0
    SIP:Response: SIP/2.0 487 Request Terminated
    SIP:Response: SIP/2.0 200 OK
    .....

    On the UM side the sequence is:
    Code:
    SDP:Request: INVITE sip:9999@exchange.XXXX.com:5060;transport=TCP SIP/2.0; SDP:SessionName=3cxPS Audio call, Version=0, MediaDescription=audio 7086 RTP/AVP 0 8 3 13 18 110 99 101
    SIP:Response: SIP/2.0 100 Trying
    SIP:Response: SIP/2.0 302 Moved Temporarily
    SDP:Request: INVITE sip:9999@exchange.XXXX.com:5065;transport=TCP SIP/2.0; SDP:SessionName=3cxPS Audio call, Version=0, MediaDescription=audio 7086 RTP/AVP 0 8 3 13 18 110 99 101
    SIP:Response: SIP/2.0 100 Trying
    SIP:Response: SIP/2.0 180 Ringing
    SIP:Request: CANCEL sip:9999@exchange.XXXX.com:5065;transport=TCP SIP/2.0
    SIP:Response: SIP/2.0 487 Request Terminated
    SIP:Response: SIP/2.0 200 OK
    SIP:Request: ACK sip:9999@exchange.XXXX.com:5065;transport=TCP SIP/2.0
    Look to me that two consecutives "Ringing" tells the 3cx that nobody is picking up the call and then hangup. Then, why UM is not picking up?

    I have 9999 as the Subscriber Access.

    Same situation when calling 8000 (The auto attendant extension).

    Help is appreciated.
     
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