Change my DTMFmode settings in VoIP - How do I?
Click on Options --> VoIP
Click the VoIP account from the lower list that you would like to edit
Click the + symbol next to the word Advanced
Locate the DTMF options (in the right-hand column) - choose a new DTMF type from the drop-down (contact your carrier for the proper value; oftentimes RFC2833 is used, but not always)
Click Update VoIP Account
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