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Cisco Bug: CSCup10743 - Secure RTP requires a way to transmit DTMF securely for Credit Card app

Last Modified

May 05, 2016

Products (36)

  • Cisco Unified IP Phone 7900 Series
  • Cisco Unified IP Phone 7962G
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 7945G
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone 7911G
  • Cisco Unified IP Phone 6901
  • Cisco Unified IP Phone 7961G-GE
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Known Affected Releases


Description (partial)

If you transmit Secure RTP, then inband DTMF may be recorded by recording device.

If you use out of band DTMF, it may not be detectable by CC machine as DTMF unless you use the handset (not the headset or speakerphone).

setup secure RTP and Secure SCCP (optional) - transmit DTMF (eg credit card #s) and it will possibly be recorded at far end if these go inband.  If you go out of band the CC machine may not be able to interpret it.
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