[Asterisk-Users] Sipura SPA-841 Volume Oscillation Problem

[Vahan Yerkanian]

Greetings,

I'm experiencing the same problem. It manifests itself mostly in noisy 
environments - as soon as there is some increase of the ambient noise 
the volume in the headpiece or the "speakerphone" decreases immediately, 
and starts to randomly increase/decrease for some time after the ambient 
noise gets low. This is 100% repeatable if you start the conversation by 
using speakerphone. As soon as you switch to the handset, the defect 
disappears. Now the problem is that 5% of calls via headset have the 
same problem.

I am using the latest firmware for the SPA-841.

Javier Ergas wrote:
> Hi all,
> 
>  
> 
> The problem is on the volume of the voice sent by the SPA-841. I think 
> the echo cancel algorithm sets a limit to the microphone when detects 
> sounds or noise from the earphone. This problem generates an oscillation 
> on the voice volume sent by the phone and even turns it off completely 
> for very little lapses of time making the communication very 
> uncomfortable. I manage three different implementations with Asterisk 
> and Sipura SPA-841 on different clients and network topologies, and on 
> every one we are experiencing the same situation.
> 
>  
> 
> Thanks,
> 
> jergas
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
-------------- next part --------------
A non-text attachment was scrubbed...
Name: vahan.vcf
Type: text/x-vcard
Size: 287 bytes
Desc: not available
Url : http://lists.digium.com/pipermail/asterisk-users/attachments/20050708/a909af05/vahan.vcf