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Cisco Bug: CSCua86197 - CP 8945 running (SIP894x.9-2-3-ES3-BZ3535.1) has the side noise

Last Modified

Feb 22, 2014

Products (34)

  • Cisco IP Phone 8800 Series
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified IP Phone 7962G
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 9951
  • Cisco Unified IP Phone 7945G
  • Cisco Unified IP Phone 7941G
  • Cisco Unified IP Phone 7911G
  • Cisco Unified IP Phone 6941
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Known Affected Releases


Description (partial)

8945 phones having a problem with audio quality.
Distortion is heard both in off-hook and conversation state
The noise is audible as soon as the phone goes off hook, without dialing any number. Considering that the dial tone is generated locally by the DSP of the phone.

1.Checked and replaced the bad cable to the phone (previously there was a problem with attenuation).
2.Noise is present only at the handset.
3.Problem is noticed on 3 of round 30 phones of the 8945 phones.
4.Problem is gone after power-cycling the phone.
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