[Asterisk-Users] HELP! Bad sound quality

[Alex Brett]

Rudolf Ladyzhenskii wrote:
> I think you are right. 1.0.7
> 
> I connect via VoIP providers -- via Internet only. No direct PSTN
> connection. (Well I do have TDM400, but did not have time to set ot up
> yet).
> I use Polycom SP300 phones
> I even have problems when talking to people with softphones registered
> on my * server.
> 
> Somehoe, I am starting to suspect that my ISP have something to do
> with that. Is there any way to check quality of Internet connection?
> Not just speed but quality.
> 
> Thanks,
> Rudolf
> 

You mentioned in an earlier e-mail you have ADSL 512/128, what codecs 
are you using with your communication, as I found when I was using a 
system on 128k upstream only that ulaw/alaw didn't work properly, as the 
connection just wasn't good enough - I had to use ilbc...

Alex

-- 
Alex Brett
alex.brett at loho.co.uk
http://www.loho.co.uk/