[Asterisk-Users] re: GrandStream GSX-2000 strangeness

[Joe McConnaughey]

The Grandstream speakerphone is just about useless to me.  I have a problem with their VOX not working right and if you try to mute a conference, the phone hangs up in a random period of time.  I contacted their tech support and got this message from them:

Dear Joe McConnaughey,

Thank you for your email. 

Yes, we are aware these two bugs and engineering is working on that. 
The mute one is easy to fix but the echo (AEC) is not so easy to fix, but we are working on that and you should be able to get the fix soon.

Thanks.



Best Regards,
John Huang 
Grandstream Technical Support
----------------------------------------


"Joe McConnaughey" <kenn10 at comcast.net> wrote:

> Hello -
> 
> I'm running firmware 1.0.1.9 with bootloader 1.0.1.2 on the GXP-2000
> phone.  I have a static IP assigned and am using this with the Asterisk
> PBX.  I have two accounts programmed on it as Line-1 and Line-2.
> 
> If I am on an incoming call and put the phone on "Speaker", the speaker
> phone does not work well unmuted.  If I use the "Mute/DEL" button to
> mute the outbound audio, the phone drops the call in a random amount of
> time (usually less than 30 seconds.)  
> 
> At this time, the speakerphone is pretty useless on this phone.  Callers
> complain of feedback and at my end, the audio is choppy due to the
> phone's vox functions cutting in and out.  It works fine using the
> handset.
> 
> This is not related to the Asterisk as my other SIP devices work fine.
> 
> Any suggestions?
> 
> Joe McConnaughey
> kenn10 at comcast.net
> 


------------------------------

Message: 5
Date: Wed, 10 Aug 2005 18:28:23 +0100
From: "Faris Raouf" <faris at cymru1.net>
Subject: [Asterisk-Users] GrandStream GSX-2000 strangeness
To: <asterisk-users at lists.digium.com>
Message-ID: <200508101828950.SM01572 at atlantis>
Content-Type: text/plain; charset="US-ASCII"

I have a really baffling problem.

A couple of months ago I purchased a pair of GrandStream GSX-2000 phones for
use with Asterisk.

At first all was well. But recently I've noticed terrible sound quality
problems. Basically the sound will "glitch" or stutter randomly from time to
time.

Now, what is interesting is that this happens even with the phone totally
disconnected from any network. You can hear it on the dial-tone that the
phone itself generates if you press SPEAKER or lift the handset, with no
network cable plugged in. So whatever is causing this glitching would seem
to be being generated within the phone itself, and not coming from an
external source. (It isn't the power, as the two phones are in different
buildings in different towns. Besides, both are connected to UPSs).

To me this seems to indicate a fault with the phones themselves. But for
both of them to develop the same fault at the same time seems odd. 

I asked on the voipuser.org forum if anybody else had had similar problems,
but everybody who responded said all was well with their phones.

But given the wider reach of this list, I thought I'd ask here as well.

Both phones have the latest firmware from the GS website.

Does anyone have any ideas? Has anyone had anything similar happen to them?

Faris.

p.s. This is my first post here. Please be gentle with me :-)

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