sip trunk between 3cx and cucm 11.x

  1. Solved CUCM 11 Trunk to 3CX Trouble

    All, Racking my brain on this one and not getting anywhere. I have a large CUCM instance that we will be doing a slow migration to 3CX (assuming we can get this to work), but will need interoperability with the old system unbtil we are fully migrated. The problem: I can start a call, and...
    • noneya
    • Thread
    • sip trunk between 3cx and cucm 11.x
    • Replies: 1
    • Forum: Other

  2. About SIP Trunk

    Hello, I would like to share your wisdom. I am using 3CX in Japan. I would like to use 3CX with a fiber optic phone in Japan. Is there any good way to do this? I used to use it for call forwarding, but now I would like to make outgoing calls using my current fiber optic phone. Our current...
    • Masaya Hanato
    • Thread
    • ntt sbc sip sip trunk between 3cx and cucm 11.x siptrunk
    • Replies: 0
    • Forum: Other

  3. Solved 3CX - SIP Trunk - Call Manager Failure

    Hi, Yesterday, our Cisco Call Manager self signed certificates expired and we have to "re-generate" them. Today, come to find out, calls into our main line ( which route into a 3CX CFD application ) are failing when a customer selects a menu option which routes the call back over to Cisco Call...
    • amir_
    • Thread
    • sip trunk between 3cx and cucm 11.x
    • Replies: 4
    • Forum: Other
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