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Hi,

I have bought 50 T21P phones

Firmware Version: 34.72.0.75
Hardware Version: 34.1.0.0.0.0.0

All of them have a headset volume level problem. The audio is too low.
I found all this threads with similar problems.

http://forum.yealink.com/forum/showthread.php?tid=3072
http://forum.yealink.com/forum/showthread.php?tid=3278
http://forum.yealink.com/forum/showthread.php?tid=3242
http://forum.yealink.com/forum/showthread.php?tid=1507

No solution at all.

I'm hoping that some of the forum have solved.
Hi,

Have you adjusted the headset sending volume following the http://forum.yealink.com/forum/showthread.php?tid=3072?
If yes, could you please export your phone config.bin file so we can check whether this value has been changed successfully?

Thank you!
Regards,
Peter
Hi Peter.

Thank you for your quick reply.

I changed the y000000000034.cfg file like folowing and start autoprovision.
The config.bin file is attached.

####################################
## Volume ##
####################################
voice.handfree.spk_vol =
voice.handfree.tone_vol =
voice.handset.spk_vol =
voice.handset.tone_vol =
voice.headset.spk_vol = 53
voice.headset.tone_vol = 53
voice.ring_vol =
voice.group_spk_vol = 53

### Only T28P/T26P/T22P/T20P Models support the three parameters
voice.handfree_send =
voice.handset_send = 53
voice.headset_send = 53

Thanks again.
Ricardo Matuda.
Hi,

I have sent you an email, please try to test.

Thank you!
Regards,
Peter
Hi Peter.

Problem solved !!!!

Now the headset volume is loud enough.
Everybody is happy Smile

Thank you very much.

Ricardo Matuda
Hi,

I have the same problem regarding the low volume. I have the same harware and firmware version as in the first post. Can you help me, please?
Hi,

Please upgrade to 34.72.0.42 and try again.
Download from:ftp://yealinkftp:yealinkftp@ftp.yealink....2.0.42.rom

Thank you!

Best Regards,
Peter
(05-19-2015 09:07 PM)Yealink_Peter Wrote: [ -> ]Hi,

Please upgrade to 34.72.0.42 and try again.
Download from:ftp://yealinkftp:yealinkftp@ftp.yealink....2.0.42.rom

Thank you!

Best Regards,
Peter


Hi When will this fix be implemented in the 3cx supported firmware ?
(05-19-2015 09:07 PM)Yealink_Peter Wrote: [ -> ]Hi,

Please upgrade to 34.72.0.42 and try again.
Download from:ftp://yealinkftp:yealinkftp@ftp.yealink....2.0.42.rom

Thank you!

Best Regards,
Peter

Please sent me 34.72.0.42.rom
(05-19-2015 09:07 PM)Yealink_Peter Wrote: [ -> ]Hi,

Please upgrade to 34.72.0.42 and try again.
Download from:ftp://yealinkftp:yealinkftp@ftp.yealink....2.0.42.rom

Thank you!

Best Regards,
Peter

Please sent me 34.72.0.42.rom
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