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- Oct 25, 2016
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Hello,
We are experiencing calls showing up as unknown that when answered you can only hear a periodic beep every 3 seconds. Otherwise there is no voice or any other sounds. This doesn't sound like DTMF tones or a fax machine trying to connect, just a simple beep. Has anyone had any experience with this or have any suggestions? I appreciate any ideas.
We are experiencing calls showing up as unknown that when answered you can only hear a periodic beep every 3 seconds. Otherwise there is no voice or any other sounds. This doesn't sound like DTMF tones or a fax machine trying to connect, just a simple beep. Has anyone had any experience with this or have any suggestions? I appreciate any ideas.