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Cisco Bug: CSCuq38691 - Need to play DTMF over 7941 7942 7961 7962 headsets when headset is used

Last Modified

Feb 06, 2017

Products (1)

  • Cisco Unified IP Phone 7900 Series

Known Affected Releases

none

Description (partial)

Symptom:
When the headset is used to answer a call (headset lamp illuminated) on SCCP controlled 7942 (or 7962) device a DTMF keystroke by the far end user is heard as a monotone frequency by the person using the headset.  This is incompatible with receiving credit card information.

Conditions:
Headset or Speakerphone lamp is lit on the 79xy device where x=4 or 6, and y = 1 or 2.  If you life the handset and the lamps are out, you can hear DTMF but your headset will no longer act as the microphone - only the handset microphone will work.  If you have the handset OFFHOOK and you press the lamp for headset or speakerphone the DTMF returns to monotone.

This customer does not require DTMF for speakerphones - only for headsets but this currently is not possible with the loads available for SCCP 7942/7962.
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