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Grandstream gxv3275 only ringing on local calls

Discussion in '3CX Phone System - General' started by Sascha, Apr 18, 2017.

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  1. Sascha

    Apr 18, 2017
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    I have some Grandstream gxv3275 in our system.
    some off the phones working fine, but on other phone only the local call are ringing, the call from outside the company are only shown on the display but there is no ringtone. i reconfigurate the phone more than one time also with factory restet it is not working.
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