Buzzing noise from the IP Phone

[karthiksr]

Hi,

We recently upgraded to CUCM 6.1.3(b) from 4.X. Now, we receive a buzzing kind of sound when the speakers are turned on-on a call. We tried upgrading the firmware of 7941G from SCCP41.8-4-2S to SCCP41.8-4-4S. But, we still have the same issue. Can you pl suggest solution.

Regds

Karthik

[Rob Huffman · Accepted solution]

Hi Karthik,

You may be hitting this bug;

CSCsz68389 Bug Details

Noise Reduction causes saturated speech on Handsfree Send

Symptom:

When talking on the speakerphone, far end listeners may hear voice clipping. The talker's voice may sound like a buzz.

Conditions:

This issue is most noticeable when the talker is using the speakerphone.

Workaround:

The talker can sit farther away from the phone, talk in a lower voice or use the handset or headset.

Further Problem Description:

Status

Fixed

Severity

3 - moderate

Last Modified

In Last 2 weeks

Product

Cisco Unified IP Phones 7900 Series

Technology

1st Found-In

8.5(2)

Fixed-In

8.5(2)CA1.2

8.5(3)MN1.8

8.4(4)ES7

Hope this helps!

Rob

[karthiksr]

Thanks Rob.

I have CCO credentials to download. Can u pl provide the link for

8.5(2)CA1.2

8.5(3)MN1.8

8.4(4)ES7

Thanks & Regds

Karthik

[karthiksr]

Hi Rob,

We could not find the version(Fixed in) in cisco. So we are raising a case with them to sought this out.

Thank u.

Regds

Karthik