Cisco 7942 Audio Bleedthrough on Speaker when Using Headset/Handset

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Apr 2nd, 2010
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End-user presses the Headset button to make an outgoing call with the Handset in the cradle with the volume set a little higher than mid-range.  The End-user can hear the conversation through the speaker of their 7942 telephone.  The bleedthrough is not that loud but it is distracting.


This issue can be duplicated on site with another 7942 when using the Handset to make an outgoing call.


CUCM Software Version 6.1


7942 Device Information:

  • App Load ID: jar42sccp.8-4-1-23.sbn
  • Boot Load ID: tnp42.8-3-1-21a.bin
  • Version: SCCP42.8-4-2S
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Overall Rating: 5 (2 ratings)
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David Hailey Fri, 04/02/2010 - 15:50
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If you can recreate the issue with another 7942 on the same firmware, then it would be worthy of doing a firmware upgrade test to see if there is an undocumented firmware bug you are hitting (nothing even close in an 8.4 bug scrub).  Load the latest firmware in the cluster but do not change the system defaults (or change them back to your current firmware after loading the update).  Then manually set the phone load for one or two of the 7942's and reset them so they upgrade the latest firmware.  If you cannot recreate the issue, I'd suspect a firmware bug is at play.


Hailey


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vbiccarino Thu, 03/23/2017 - 07:27
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Did this get resolved? I have phones on 9-4-2-1S that are experiencing this. What level of firmware was this rectified on?


Vince

Rob Huffman Fri, 04/02/2010 - 19:05
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Hi there,


Just to add a note to the excellent help from Hailey (+5 points "H"


CSCef53862            Bug Details



Faint audio is heard in the speaker while using handset
Symptom:
Faint audio is heard in speaker when handset is used

Conditions:
Hanset volume level is set at max.

Status
Fixed             

Severity        
3 - moderate


Last Modified
In Last Year        

Product
Cisco IP Phone FW 7900 Series Software         

Technology


1st Found-In
6.0(4)       
           
Fixed-In
5.0(6.1)
7.1(0.11)
3.3(5)ES20
3.3(5)SR1a
4.0(2a)ES50
4.0(2a)SR2c
4.1(2)ES43
4.1(3)ES17
4.1(3)SR1a
7.1(2.20000.2)
7.1(2a)                                                          



Cheers!

Rob

David Hailey Fri, 04/02/2010 - 19:09
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Good find, 5 right back at you. I did a bug scrub for a couple different firmware base versions and zippy - then bang, Rob to the attack!

gd08251960 Mon, 04/05/2010 - 10:15
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Rob - Thanks for the information.  However, I'm curious to know if you saw anything for CUCM Version 6.1(3.2000.1)?  Again, the bleedthrough is faint and as long as you crank up the built-in volume for the headset and lower the speaker volume on the Cisco phone, the bleedthrough disappears.

David Hailey Mon, 04/05/2010 - 10:18
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This would still be applicable to your version.  It's first discovered in 6.0(4) but the next fix version is 7x.


Hailey


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