Kevin_Z wrote Hi Tad, The user guide(page 29) of this modem mentioned the DTMF Relay Setting, we thought you wanted to change the tone of the call. Is this what my original question said? I found the...

Hi Kevin, It is unfortunate you provided incorrect information. Working for TP Link you should know or if not sure, ask. On the "Telephone Numbers" Advanced options DTMF can be configured. DTMF...

Kevin_Z wrote Hi Tad, This modem does not support change the tone options (DTMF). Hi Kevin, Are you serious? This is very poor quality product then. TP Link should do something about it and do it...

I have an Internet phone setup on VR600V and it works well, but I am not able to use tone options (DTMF). In the phone setup I see no options to turn DTMF on or off. Has anyone solved this problem...