One of the more common issues we hear on our phones during conference calls is the persistent interference of cell phones (specifically blackberries) .. it is not uncommon to have people asked to move their BB's away from the units .. this has a warbling type of effect on an audio level.
Dan. On Tue, Sep 14, 2010 at 10:11 AM, Bergen, Mark <[email protected]> wrote: > Thank you for the input Chris; > > We are using Sangoma A101DE T1 and Sangoma A20400 8 FXS analog card with 35 > Snom 320 handsets. I’ve heard the jitter earlier on when talking to a user > directly (extension to extension) but assumed it was a network issue, I’m in > Winnipeg and the user was in Calgary with the phones connecting to each > other through a VPN. > > We did have our trixbox on a different vlan than the handsets, putting them > both on the same vlan allowed us to bypass the router completely and the > problem has gotten much better but is still present. It is generally about 6 > to 10 seconds of ‘garbled’ outbound audio after about 20min, just long > enough to be annoying. A user described it as sounding like someone talking > underwater. > > I’ll contact Sangoma and see if maybe it is a driver or setting issue, no > users have complained yet about this issue happening between extension, just > with outside calls. > > Mark > > > > Mark Bergen > > Network Support Analyst > > ONLINE BUSINESS SYSTEMS > > Explore | Innovate | Lead > > > > 200-115 Bannatyne Ave., Winnipeg MB R3B 0R3 > > [email protected] | Direct Line: 204.982-0218 > > Office: 204.982.0200 | Fax: 204.982.0201 > > www.obsglobal.com > > > > From: Chris Friesen [mailto:[email protected]] > Sent: September-14-10 9:55 AM > To: Bergen, Mark; [email protected] > Subject: RE: [*] Garbled Outbound Audio > > > > What card and server are you using to run Trixbox? > > > > We had a similar issue using Switchvox on an HP DL360 and a Digium PCIe > card. We were able to match the random static with error messages in the > /var/log, it turned out. What we were able to determine is that there was an > issue with the digium driver and asterisk regarding timing that was causing > this. We changed cards (which changed drivers) and the random static > stopped. > > > > chris > > > > From: [email protected] [mailto:[email protected]] On > Behalf Of Bergen, Mark > Sent: September-13-10 8:27 PM > To: [email protected] > Subject: [*] Garbled Outbound Audio > > > > We have noticed on occasion the outbound audio on our phone system is > garbled. We have checked the network and it seems to be in good order. It > happens randomly and usually only for a few seconds (just long enough to > annoy users). It has also happened when there was only a light load on the > network. > > We configured one of the snom 320 handsets to only use the G711u codec and > no real change (outbound audio was still garbled a couple of times briefly > over a 1.5hr phone call). Our system uses VoIP only inside our local > network, we have an MTS PRI for outbound calls. > > Anyone have any ideas or pointers? > > Thanks; > > Mark > > > > Mark Bergen > > Network Support Analyst > > ONLINE BUSINESS SYSTEMS > > Explore | Innovate | Lead > > > > 200-115 Bannatyne Ave., Winnipeg MB R3B 0R3 > > [email protected] | Direct Line: 204.982-0218 > > Office: 204.982.0200 | Fax: 204.982.0201 > > www.obsglobal.com > > > > _______________________________________________ > Asterisk mailing list > [email protected] > http://www.muug.mb.ca/mailman/listinfo/asterisk > > _______________________________________________ Asterisk mailing list [email protected] http://www.muug.mb.ca/mailman/listinfo/asterisk
