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Cisco Bug: CSCsz29399 - DTMF tones don't work when RT-Lite is controlled by soft client

Last Modified

Jul 28, 2011

Products (1)

  • Cisco Unified IP Phone 6900 Series

Known Affected Releases


Description (partial)


Use CUPC or CUCIMOC to control an RT-Lite phone. Start a phone call and open the in-call keypad on the soft client (either CUPC or CUCIMOC). Press a button, which should produce a DTMF tone. Nothing happens. This prevents users from getting into MP meetings or performing a host of other functions.

fixed in 66.5
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