[asterisk-users] Robotic sound sometimes

[Peder]

Since it is sporadic, my guess would be network latency / packet loss
/jitter to ITSP.  You may have lots of capacity and they may claim to have
lots of capacity, but what about the links between you and them.  Who knows
when/if there is loss and latency and jitter there.  Setup wireshark to grab
some calls and when someone complains about it, look at the stats for that
call.  It will tell you if there is loss or latency or jitter.

 

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Michelle
Dupuis
Sent: Friday, February 12, 2010 4:06 PM
To: 'Asterisk Users List'
Subject: Re: [asterisk-users] Robotic sound sometimes

 

No, phone on LAN, through Asterisk box on LAN, through firewall, out to
fiber connection (lots of capacity there), to ITSP.

 

Codec is uLaw.

 

This only happens sometimes, so I'm wondering if it's an asterisk bug?
Aastra bug?  Network latency?  LAN capacity, etc.  Never seen this before...

 

  _____  

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Tim Nelson
Sent: Friday, February 12, 2010 4:34 PM
To: Asterisk Users List
Subject: Re: [asterisk-users] Robotic sound sometimes

What codecs are you using? Are the calls internal(local network) only?

Tim Nelson
Systems/Network Support
Rockbochs Inc.
(218)727-4332 x105

----- "Michelle Dupuis" <support at ocg.ca> wrote: 
> 

We have inherited an installation with Ast 1.4 and Aastra phones.  The
client complains that sometimes the call audio turns tinny and robotic...I
heard it and it sounds wierd.

 

Has anyone else experienced this?  Cause?  Solutions?

 

Thanks,

MD


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