Problems with 3rd party apps ringtone

radiotwo

New member
Jul 9, 2016
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I have the HTC 820
I have a Vonage account with a Extensions app, and when the Vonage number rings it rings the phone
but this has just stopped working.
I have reinstalled the app and this works as it should but just no ringing, this is a bit of a long shot I have
tried Vonage but they are stumped so hoping someone has come across something like this.