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  1. Lumen- diversion header call forward

    Lumen support has reached out to T-mobile support using whatever channels they have and T-mobile responded that due to the amount of call spoofing they (T-mobile) do not allow a forwarded call from off their network but using a number registered on their netowrk to go through- and I'm assuming...

  2. Lumen- diversion header call forward

    It only happens for calls on the same mobile network- tested with Verizon, T-Mobile, and ATT

  3. Lumen- diversion header call forward

    Thanks for the response. We are in the United States, will this regulation make 3CX support Diversion Headers in an upcoming release or risk losing Czech customers?

  4. Lumen- diversion header call forward

    BTW- CenturyLink (Lumen) is on your supported list, just not on the preferred list.

  5. Lumen- diversion header call forward

    Thanks for the response- does 'at the moment' mean that it is in the works?

  6. Lumen- diversion header call forward

    We are self hosted v18.0 update 7 and cannot forward calls to mobile numbers that originate from the same mobile provider. The SIP trunk is provided by Lumen and works great other than this issue. Example- originating number --> destination number --> forwarded number the originating number...
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