[Asterisk-Users] Grandstream Budgetone BT-101 audio problems

[Cristian Draghici]

Are you using the same NTP server for both phones?
Are you using NTP at all?

Is jitterbuffer enabled on the asterisk server?

Not sure about SIP, but on IAX if the timestamps go haywire,  you can
loose audio from one side.

hth,
c


On 1/31/06, jurgen <thinger at gmail.com> wrote:
> Hi all,
>
> I'm having a really frustrating time with a bunch of BT-101 phones.
> They've been trouble-free and working very well for the past several
> months. A couple of days ago, some of the phones (but not all of them,
> yet) have started acting very strangely. All phones are running
> firmware 1.0.6.7, and are identically configured (except for the
> user/authenticate/password things) on both the phone side and in
> sip.conf.
>
> After a few hours of relatively heavy use, the phone stops sending the
> remote party's voice to the BT-101 person. Someone else (me, heh heh)
> listening in to the call via ZapScan can hear both sides just fine, so
> it doesn't seem to be Asterisk's problem, at least directly.
>
> I've tried simply power cycling the phones. Doing that buys me a bit
> of time, sometimes a minute, sometimes ten. But the problem always
> comes back relatively quickly. Moving the phones to another physical
> Ethernet connection does nothing either.
>
> The way to make the problem go away for about 24 hours is to swap them
> around. I move a spare from my desk to the person with the bad phone,
> simply by changing the user/auth/pass strings. I set the broken phone
> up with my testing user/auth/pass stuff, and they both start working
> again. Now get this: Simply changing the user/auth/pass strings on the
> bad phone to something else, then setting them back to what they were
> before *doesn't work*. The actual phones have to be swapped around.
> The phones are plugged into the same switch as the Asterisk server, no
> funny stuff there.
>
> I've tried resetting the phones back to the factory settings, and
> reconfiguring them from scratch. That doesn't eliminate the problem
> either, just delays it another 24 hours.
>
> So. That pretty much covers it. Only three of the phones are doing
> this, and they only started a few days ago. They were working *fine*
> for months! Does anyone have any ideas here? I'm about ready to throw
> these phones into a tree shredder.
>
> Thanks!
>
> ......jurgen
>
> --
> thinger at gmail.com is jurgen's gmail address.
> Visit http://jurgen.ca/ for more yummy goodness.
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