[asterisk-users] IAX2 hardware video phone

[SIP]

Joseph wrote:
> On 06/01/08 10:13, Rob Hillis wrote:
>   
>>> The only option I have seen is Grandstream GXV3000; it works with Asterisk but it is SIP phone. 
>>> So to traverse the firewall using "IAX2" I need to connect it to an internal asterisk box or make a "Swiss cheese" 
>>> out of a firewall.
>>>   
>>>       
>> It's the only one I'm aware of too, and having been bitten badly by the 
>> Grandstream's superior ability to crash, hang, stuff up phone calls and 
>> otherwise behave badly, the only recommendation I ever have for them is 
>> to NOT use them.  Whilst I haven't used a GXV3000 for long enough to 
>> know how much the Grandstream instability applies to this phone, I've 
>> had more than enough experience with GXP-2000s and BT200s.
>>     
>
> Thanks for the input.  
> I've read some reviews and from what I've read the Video is OK but the voice quality is not impressive.
> Is anybody using this model and can provide real life experience with GXV3000 model?	
>
>   
We've got some GXV3000s around.  Overall, the voice quality isn't bad. 
It's no Polycom, but it's as good as the rest of the Grandstream line -- 
no better, no worse. Video quality is actually excellent, and it's a 
nice design.

The firmware, however, has Grandstream's usual issues and bugs.  The 
biggest one that annoys us is that the screensaver for the LCD works 
when you boot up the phone. However, after the phone rings, the 
screensaver turns off and won't work again until you reboot the phone.

It also suffers the same issues with most of the Grandstream's regarding 
NAT. They seem to be unable to do a keep-alive through a firewall to 
keep a proper port open, so they'll routinely lose their RTP streams 
after a short period of active time. We've had to port-forward incoming 
RTP ports directly to the inside Grandstreams, which makes DHCP 
unusable. However, that did solve the RTP issues.

We've had that issues with all the Grandstreams, though.

Our staple phones are still Snom 320s. Inexpensive, durable, and 
reliable. But no video.

N.