[Asterisk-Users] Stay away from Grandstream!

[calvis]

Are you saying that we just wasted our money with our recent purchase of
Grandstream phones?   The last thing I need is problems with a phone.
Someone please confirm.are these phones unusable?

 

 

 

 

 

  _____  

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Erick Baum
Sent: Tuesday, December 27, 2005 6:53 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Stay away from Grandstream!

 

We have 50 Grandstream's that we purchased about 3 months ago.  They're all
at one site and we've had nothing but trouble with all the phones.  The echo
is the worst problem of all.  We had to upgrade from the default 1.0.1.9
firmware to the 1.0.1.12 "beta" to get the speakerphone to work properly.
Once we did that, there is now a bad echo if one of the GXP users turns
their volume up too high, the other party can hear an echo.  If the GXP user
turns their volume down a bit, the echo starts to go away.  This happens
internally from GXP to GXP as well as with outside callers.  At first
Grandstream didn't want to admit that they knew about this or that they'd
even ever heard of this problem before.  But they finally at least said they
would have an engineer check into it.  Then after some research online I
come to find that lots of people are having the echo issue with the newer
firmware and they had also notified Grandstream months ago.  So they know
about the problem. 

 

On top of the echo issue, which is completely unacceptable, we've had a
couple phones flat out die, we've had several that had the PoE go dead so we
were forced to use the AC adapter.  And many of the other phones suffer from
all kinds of stupid little intermittent issues such as dropped calls,
reboots and strange ticking and static on the line, even on internal calls.
We discovered that quite a few of the network cables that came with the
phones seemed to be faulty, which when replacing them seemed to solve some
of our dropped calls and spontaneous reboot problems.  Some of the phones
had bad handset cables.  Replacing some of those seemed to get rid of some
of the static issues.  We've replaced several of the really troublesome
phones with Cisco's or Polycom's, and what do you know, no problems
whatsoever. 

 

All in all, we have been extremely disappointed in the reliability of the
phones and especially unhappy with the level of service from Grandstream.
Grandstream should not be permitted to sell these phones to consumers,
marketed as a business class phone of all things!  They're knowingly selling
a faulty product.  It's outrageous.  And what's even more amazing is they
claim that the GXP2000 won some sort of award, and it's even a "Best Seller"
at Atacomm.com.  How it the world can that be.  The phone is a piece of
crap.  They're either going to fix these problems once and for all or give
us our money back.

 

Here's a good page regarding many of these issues... including the echo..
argh... 

http://www.voip-info.org/wiki/view/GXP-2000

 

Erick

 

On 12/27/05, isamar at isamarmaia.org <isamar at isamarmaia.org> wrote: 

>
> What issues are you having with attended call transfer? In recent months
> I've gone through a fair number of GXP2000 firmware versions and I can't
say 
> any of them have had a problem with attended transfer.

I saw this topic and I myself the recommend the same!! Stay away from
Grandstream... unless you are younger, much hair in the head and no
white hair :-) 


Isamar

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