[Asterisk-Users] IVR Menu and VoiceMail quality

[Chris Shaw]

I thought it was only needed for MeetMe and MOH?
----- Original Message ----- 
From: "Jay Milk" <jay at skimmilk.net>
To: <asterisk-users at lists.digium.com>
Sent: Friday, July 09, 2004 12:21 PM
Subject: RE: [Asterisk-Users] IVR Menu and VoiceMail quality


> Do you have ztdummy loaded?
> 
> > -----Original Message-----
> > From: Chris Shaw [mailto:chriss at watertech.com] 
> > Sent: Friday, July 09, 2004 1:14 PM
> > To: asterisk-users at lists.digium.com
> > Subject: [Asterisk-Users] IVR Menu and VoiceMail quality
> > 
> > 
> > I have really tried to do my best googling and wiki-reading 
> > before asking this question. I couldn't find the answers 
> > there so I throw myself at the mercy of the list...
> > 
> > I get excellent quality for SIP -> PSTN and PSTN -> SIP 
> > calls, however when I or anyone else calls from PSTN -> * the 
> > voice menus are oftentimes very choppy. Sometimes they are 
> > absolutely perfect and I cannot tell that it's actually VoIP. 
> > Sometimes it's so bad that I can't understand what Allison's 
> > saying at all... Calls on the same network sound just fine... 
> > I know what you're thinking, it's a congested link, and that 
> > may be but I've noticed that if I play with the nice value of 
> > asterisk, it seems to help. Setting nice to 0 seems to work 
> > the best, I tried -20 and it was the worst...
> > 
> > I have implemented QoS on my network and have given any and 
> > all asterisk packets priority. As I said actual calls are 
> > crystal clear so I believe it to be a problem with Asterisk 
> > itself or the machine it's running on. Possibly some 
> > bottleneck somewhere. I realize that since it's going over 
> > the public internet, the occasional dropped packet is to be 
> > expected, but what's frusterating is that I can get crystal 
> > clear menus sometimes even when my network is fully loaded 
> > and other times when it's perfectly quiet it sounds 
> > absolutely horrible...
> > 
> > Here are the machine's specs if that helps:
> > 
> > AMD Athlon 1Ghz (Old Thunderbird core)
> > Asus A7V600
> > 128MB DDR-266 RAM
> > 450GB storage (4 IDE drives in an LVM array) *grin*
> > Pure VoIP, no digium hardware
> > 
> > Internet connection is cable with 3Mbit downlink and 256Kbit uplink...
> > 
> > As I said earlier I wouldn't have even asked, but it dosen't 
> > seem to be totally bandwidth related so I'm wondering if 
> > anyone has any ideas...
> > 
> > Chris Shaw
> > IS Manager
> > Water Tech Industries
> > Phone: (888)-254-8412
> > Fax: (503)-261-9118
> > E-Mail: chriss at watertech.com
> > 
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