well, it's more of an RF Interference issue what I'm talking about - -so it's dependent upon the susceptibility of the device itself, whether it's analog/digital doesn't really matter ..
Dan. On Tue, Sep 14, 2010 at 10:59 AM, Bergen, Mark <[email protected]> wrote: > Thank you Dan; > Interesting, but the audio has happened on calls to landlines as well. I'm > glad you mentioned the cell phones though, at first I thought it was specific > to them but just yesterday it happened again on a call to a landline. > Mark > > > -----Original Message----- > From: Dan Keizer [mailto:[email protected]] > Sent: September-14-10 10:50 AM > To: Bergen, Mark > Cc: Chris Friesen; [email protected] > Subject: Re: [*] Garbled Outbound Audio > > 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
