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    VOIP phone pickup disconnect

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    • E Offline
      emin911
      last edited by

      Hi folks

      Im in a situation that I dont know how to get out of. We have 6 other Grandstream VOIP phones in the office that I setup up and they work just fine.

      I just purchased a Grandstream conference VOIP phone and I set it up the same way I set up the other phones, but the problem is when I make a call to/from the new conference phone the call disconnects as soon as the person picks up the call.

      Anyone any idea what the problem is? my voip provider is voip.ms

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      • S Offline
        Stewart
        last edited by

        Your best shot is to use the packet capture feature on the LAN (at the IP of the phone) and grab a capture of the call.  Then open it up in wireshark and go to Telephony -> VOIP Calls (I think that's where it is).  Don't limit it to port 5060, just grab the whole thing.  In there you can look at the flow and see which side hangs up.  I'm assuming you are using a hosted system and not just SIP trunks.  If it's a hosted system this should give you a place to start.  Also, don't rule out firmware.  If this is the only one of this model you have then you can't really compare it to the others.  All you know is that your rules are likely OK in the firewall but capturing the packets is the next step that I would do.

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