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Incoming Call always Busy - Trunk SIP SBC RRS feed

  • Question

  • Hello,

    I started preparing my first Skype environment.
    For now I have:
    - An FE server
    - A Mediation server
    - A SIP Trunk (SBC)
    Outgoing calls work perfectly.
    But I can not manage the incoming calls. If i try to call my number, I always receive the busy sound


    - I did not make a specific configuration in the section dial plan
    My question: How can I solve this problem? And is there any traces somewhere if the incoming call has already happened on my environment?

    Thank you

    SC
    Tuesday, February 7, 2017 11:26 AM

Answers

  • I just found out where the problem comes from.
    Indeed, I have misconfigured the PSTN Gateway. But my poor configuration affected only incoming calls.
    I found in the following link the commands needed to recover the log

    Thank you for your help
    • Marked as answer by SChniter Tuesday, February 7, 2017 5:13 PM
    Tuesday, February 7, 2017 5:13 PM

All replies

  • 2 places you need to check.

    1-SBC is routing the calls to SFB?traced the logs on SBC?

    2-SFB should have dial plan to accept the number format.How the SBC is sending numbers to SFB and what number format is appended on user property.Based on that you need to manipulate numbers for incoming calls.normally the incoming calls will not have + symbol.so you may need to add that because SFB will accept in that format only.Else in gateway you can configure that to add whatever the number pattern accepted by SFB. Basically you need to check the logs on SBC and Mediation servers.EVen mediation server event logs will logs some information.

    http://ucken.blogspot.in/2015/09/testing-inbound-pstn-connectivity.html

    Mark as Answer if it help!!


    Jayakumar K


    • Edited by Jayakumar K Tuesday, February 7, 2017 11:42 AM URL added
    • Proposed as answer by Jayakumar K Tuesday, February 7, 2017 11:42 AM
    Tuesday, February 7, 2017 11:40 AM
  • Deleted
    Tuesday, February 7, 2017 1:12 PM
  • I just found out where the problem comes from.
    Indeed, I have misconfigured the PSTN Gateway. But my poor configuration affected only incoming calls.
    I found in the following link the commands needed to recover the log

    Thank you for your help
    • Marked as answer by SChniter Tuesday, February 7, 2017 5:13 PM
    Tuesday, February 7, 2017 5:13 PM
  • Hi SChniter,

    We are glad to hear this issue has been solved, also thanks for your sharing, because it will help someone who has similar issue could find this thread as soon as possible.


    Best Regards,
    Jim Xu
    TechNet Community Support


    Please remember to mark the replies as answers if they helped.
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    Wednesday, February 8, 2017 6:43 AM