[asterisk-users] Polycom 550 IP SoundStation Fuzzy Voice Quality

Paul Hales pdhales at optusnet.com.au
Wed Jan 9 20:28:19 CST 2008


What zap driver are you using? ztdummy?

PaulH


On Wed, 2008-01-09 at 15:41 -0500, Mike Coakley wrote:
> I'm setting up a new Asterisk system on a Dell server and I'm getting  
> "fuzzy" voice between the Polycom IP SoundStation 550 and the Asterisk  
> server. I've checked all of my codec settings and both the Asterisk  
> and the Polycom agree on u-Law encoding. I'm using the latest release  
> of the Asterisk code (1.4.17) and other software. If I call between  
> phones (i.e. two Polycom's) everything is crystal clear so it doesn't  
> appear to be a Polycom issue.
> 
> Here is the current information on the Polycom phone:
> 
> SoundPoint IP 550
> Assembly: 2345-12500-001 Rev: A
> BootBlock 2.7.0 (12500_001)
> BootRom: 4.0.0.0423
> SIP: v.2.2.0.0047
> PolyDSP Titan Mem1 FS3 v1.7.0.0057
> 
> Here is my SIP config:
> 
> [2000]
> type=friend
> username=2000
> password=sip-access
> dtmfmode=rfc2833
> mailbox=2000 at office
> disallow=all
> allow=ulaw
> 
> Any help would be appreciated.
> 
> Thanks,
> 
> Mike
> 
> 
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