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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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DTMF Commands

Lync Server 2010 enables attendees to use DTMF commands when in a conference to control certain features normally visible within a Lync client. For example, users can send DTMF tones that might mute their microphone, play an attendee roll call, or lock the conference. Usually these features can be accessed through a Lync client, but without a visible user interface, DTMF tones must be used. By default, a global configuration of the key mappings is assigned to all users. If required, administrators can modify the global configuration or modify the key mappings on a per-site basis.

Note

There is no method to assign different DTMF key mappings directly to users within the same site, so key mappings are either global or site specific. ...

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