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-boun...@lists.digium.com [mailto:asterisk-users-boun...@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-boun...@lists.digium.com [mailto:asterisk-users-boun...@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" <supp...@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 > -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
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