I use Skype Connect™ and I’m having DTMF issues. What should I do?

If you use Skype Connect and you are having DTMF (dial pad tone) issues, check the following possible causes:

Check	Description
Are you using RFC 2833 (out of band) DTMF?	Ensure your SIP-enabled PBX is configured to use RFC 2833 DTMF and not in-band DTMF. We do not support in-band DTMF.
Are you using uncertified equipment?	Use of uncertified equipment may lead to problems with functions such as DTMF. We recommend that you use a Skype Connect certified PBX or gateway as we cannot ensure all your SIP-enabled PBX features and functions will operate correctly in non-certified SIP-enabled PBXs when used with Skype Connect. Learn more about the current list of Skype Connect certified SIP-enabled PBX vendors.

For more information on Skype Connect, there is a Quick Start Guide, a User Guide and several other Skype Connect guides available on the Guides page of the Skype Support site.

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