handytone 503

  1. New missed call email notification - caller id

    I have successfully connect pstn line in a 3cx extension - for example ext. 001 (via grandstream handytone 503 pstn to voip fxo). i have succefully connect a softphone in another 3cx extension - for example ext. 002. I have successfully forward the caller id from pstn line to softphone via...
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