Blacklisted number diverting to mobile

Discussion in '3CX Phone System - General' started by karlinoz, Apr 15, 2015.

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  1. karlinoz

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    Hi There,
    I have searched the forums but not found anything like this:
    I have a number entered in our Number Blacklist The number is blocked as recorded in the activity log (see below) however instead of dropping the line, the call is diverted to the user's mobile - I'm guessing because the user has set his phone to divert on busy. What is interesting is that the log shows the call as being terminated but it is not terminated, it is diverted to the user's mobile. Is this normal behaviour? And if it is how can we get around it?

    Contents of the activity log: (I have replaced the blocked number's last 4 digits with xxxx to protect their identity).
    15-Apr-2015 16:11:23.633 Leg L:3446.1[Line:10062<<006187200xxxx] is terminated: Cause: BYE from PBX
    15-Apr-2015 16:11:23.610 [CM502001]: Source info: From: "006187200xxxx"<sip:006187200xxxx@27.111.14.65>;tag=as73aa29e4; To: <sip:61364270105@175.111.102.87:5060;rinstance=88062e9f1b718499>
    15-Apr-2015 16:11:23.610 [CM503013]: Call(C:3446): Incoming call rejected, caller is unknown; msg=Ivite-IN Recv Req INVITE from 27.111.14.65:5060 tid=4aa3e676 Call-ID=4af6c37d7bce2e7b64fc31972aa8a521@27.111.14.65:
    INVITE sip:61364270105@175.111.102.87:5060;rinstance=88062e9f1b718499 SIP/2.0
    Via: SIP/2.0/UDP 27.111.14.65:5060;branch=z9hG4bK4aa3e676;rport=5060
    Max-Forwards: 70
    Contact: <sip:006187200xxxx@27.111.14.65:5060>
    To: <sip:61364270105@175.111.102.87:5060;rinstance=88062e9f1b718499>
    From: "006187200xxxx"<sip:006187200xxxx@27.111.14.65>;tag=as73aa29e4
    Call-ID: 4af6c37d7bce2e7b64fc31972aa8a521@27.111.14.65
    CSeq: 102 INVITE
    Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
    Content-Type: application/sdp
    Date: Wed, 15 Apr 2015 04:11:22 GMT
    Supported: replaces
    User-Agent: 2talk PBX
    Content-Length: 443

    v=0
    o=root 1250238836 1250238836 IN IP4 27.111.14.65
    s=2talk PBX
    c=IN IP4 27.111.14.65
    b=CT:2048
    t=0 0
    m=audio 22066 RTP/AVP 8 9 18 3 0 101
    a=rtpmap:8 PCMA/8000
    a=rtpmap:9 G722/8000
    a=rtpmap:18 G729/8000
    a=fmtp:18 annexb=no
    a=rtpmap:3 GSM/8000
    a=rtpmap:0 PCMU/8000
    a=rtpmap:101 telephone-event/8000
    a=fmtp:101 0-16
    a=ptime:20
    a=sendrecv
    m=video 24238 RTP/AVP 34 99
    a=rtpmap:34 H263/90000
    a=rtpmap:99 H264/90000
    a=sendrecv
    15-Apr-2015 16:11:23.607 [Flow] Call(C:3446): caller's number '006187200xxxx' is in blacklist
     
  2. pj3cx

    pj3cx Active Member

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    Hi there,
    Which version of 3CX Phone System are you using ?
    Perhaps it is a provider setting making this redirection happen, have you checked your 2Talk settings ?
     
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  3. karlinoz

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    Thanks for your response pj3cx, yes I'll be that will be it. I was not involved in the installation of this system and the guy who was is a bit too pushed to give me a run down on how everything hangs together so I'm learning as I go.
     
  4. certainlyNotApenguin

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    Not a direct fix but I have found the blacklist function to be pretty buggy and calls bouncing all over the place.

    My solution would be to create a extension called 'blocked calls' that goes to voicemail after 1 sec.
    So lets say you have a group mail box > forwarding rules > exceptions

    Add the blacklisted numbers to forward to this 'blocked call' extension.

    There's obviously a few limitations with this methods but it bridges the gap until the bugs are resolved.
     
  5. leejor

    leejor Well-Known Member

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    The 3CX log shows no sign of the call being diverted to the users mobile? If 3CX were doing the divert, there should be a log.

    Could it be that the divert is being done by the provider? Some option previously enabled on the PSTN/VoIP line?
     
  6. wouter

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    Try contacting your SIP-account provider to check if there is a Backup number, in case the SIP account is not registered to anything.

    If you use the Standard, Pro or V14 version, you can also set an inbound rule based on the caller ID you want to blacklist. You can then choose to hang up the call or to let the caller know his phone number has been blocked using a digital receptionist.
     
  7. netcare

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    For 2Talk you can check/set your own failover number.
    Login to your 2talk LIVE and under "Call forwarding or trunking" there is the option to Call forward when unreachable.
     
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