[Asterisk-Users] Stay away from Grandstream!

[Erick Baum]

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
1.0.1.9firmware 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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