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Thread: Call drops whenever it is a fax

  1. #1

    Default Call drops whenever it is a fax

    Hello everyone,,
    Strange issue:

    Provider:- Simple Signal

    Issue:

    Whenever there is fax coming in, the call drops within a few seconds. If you call the same number and talk or leave a message or even put an analog phone and answer on the extension, the call has not problem.

    The minute you send fax tones, the call drops - please help.

    See logs below:

    ***************************** SIP message buffer start *****************************
    INVITE sip:2147052058@24.155.238.18:5060 SIP/2.0
    Via: SIP/2.0/UDP 208.77.200.13:5060;branch=z9hG4bK1opde1009gr01bk7g 641.1
    From: <sip:208.77.200.13>;tag=SD8kghd01-209075441-1271026844322-
    To: "demo trunk"<sip:4692875690@elinkdashboard.com;ssig=ACC-banjcfdj1lb94>
    Call-ID: SD8kghd01-ad4951b2c6e0e5d15c3ee6ec414d8ddd-vrvvfv3
    CSeq: 932004178 INVITE
    Contact: <sip:208.77.200.13:5060;transport=udp>
    Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOT IFY
    Accept: multipart/mixed,application/media_control+xml,application/sdp
    Max-Forwards: 9
    Content-Type: application/sdp
    Content-Length: 172

    v=0
    o=BroadWorks 119788678 1 IN IP4 208.77.200.13
    s=-
    c=IN IP4 208.77.200.13
    t=0 0
    m=audio 56092 RTP/AVP 0 18 101
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    ***************************** SIP message buffer end ******************************

    18:00:43 Try to send SIP message # (11/04/2010 23:00:43:554 GMT) # UDP # 343 bytes # buff size 1 # from: 24.155.238.18:5060 # to: 208.77.200.13:5060

    ***************************** SIP message buffer start *****************************
    SIP/2.0 100 Trying
    Via: SIP/2.0/UDP 208.77.200.13:5060;branch=z9hG4bK1opde1009gr01bk7g 641.1
    To: "demo trunk" <sip:4692875690@elinkdashboard.com;ssig=ACC-banjcfdj1lb94>
    From: <sip:208.77.200.13>;tag=SD8kghd01-209075441-1271026844322-
    CSeq: 932004178 INVITE
    Call-ID: SD8kghd01-ad4951b2c6e0e5d15c3ee6ec414d8ddd-vrvvfv3
    Content-Length: 0

  2. #2

    Default

    Quote Originally Posted by Jhonmicky View Post
    Hello everyone,,
    Strange issue:

    Provider:- Simple Signal

    Issue:

    Whenever there is fax coming in, the call drops within a few seconds. If you call the same number and talk or leave a message or even put an analog phone and answer on the extension, the call has not problem.The minute you send fax tones, the call drops - please help. See logs below:

    ***************************** SIP message buffer start *****************************
    INVITE sip:2147052058@24.155.238.18:5060 SIP/2.0
    Via: SIP/2.0/UDP 208.77.200.13:5060;branch=z9hG4bK1opde1009gr01bk7g 641.1 From: <sip:208.77.200.13>;tag=SD8kghd01-209075441-1271026844322- o: "demo trunk"<sip:4692875690@elinkdashboard.com;ssig= best washing machine in indiaACC-banjcfdj1lb94> Call-ID: SD8kghd01-ad4951b2c6e0e5d15c3ee6ec414d8ddd-vrvvfv3 CSeq: 932004178 INVITE Contact: <sip:208.77.200.13:5060;transport=udp> Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOT IFY Accept: multipart/mixed,application/media_control+xml,application/sdp Max-Forwards: 9 Content-Type: application/sdp
    Content-Length: 172

    v=0
    o=BroadWorks 119788678 1 IN IP4 208.77.200.13
    s=-
    c=IN IP4 208.77.200.13
    t=0 0
    m=audio 56092 RTP/AVP 0 18 101
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-15
    ***************************** SIP message buffer end ******************************

    18:00:43 Try to send SIP message # (11/04/2010 23:00:43:554 GMT) # UDP # 343 bytes # buff size 1 # from: 24.155.238.18:5060 # to: 208.77.200.13:5060

    ***************************** SIP message buffer start *****************************
    SIP/2.0 100 Trying
    Via: SIP/2.0/UDP 208.77.200.13:5060;branch=z9hG4bK1opde1009gr01bk7g 641.1
    To: "demo trunk" <sip:4692875690@elinkdashboard.com;ssig=ACC-banjcfdj1lb94>
    From: <sip:208.77.200.13>;tag=SD8kghd01-209075441-1271026844322-
    CSeq: 932004178 INVITE
    Call-ID: SD8kghd01-ad4951b2c6e0e5d15c3ee6ec414d8ddd-vrvvfv3
    Content-Length: 0
    Facing Same issue
    Last edited by markcowell23; Today at 09:11 AM.

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