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  1. JMitel

    Grandstream ATA - Teleworker Mode to MBG. Device is registered but cannot make calls out.

    Hi Lundah, Yeah, have done a wireshark trace, continuos trace etc.. It's reaching the MiVB and getting error 503 | SIP;text = Forwarded response from LAN-side hop
  2. JMitel

    Grandstream ATA - Teleworker Mode to MBG. Device is registered but cannot make calls out.

    thread1329-1794848 Referencing the thread above as that user managed to get their ATA working over teleworker mode. I'm using a Grandstream HT801 and it is registered to the MBG. I have a dial tone yet when I try and make a call I get 3 short beeps then the call disconnects. Has anyone...

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