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Grandstream Video Phones

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N8NQH
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Grandstream Video Phones



Appears there are quite a few Meshies using them.  Since they can do sooooo much, it's time for a general discussion thread on their use.  The functionality  appears to be split among two areas; hardware (Grandstream) specific... and Android specifics.

I just added an advanced hints page on my website:
http://www.tim-yvonne.com/ham/mesh/3240/3240-hints-advanced.htm

along with the general operation/setup page:
http://www.tim-yvonne.com/ham/mesh/3240/3240-hints.htm

Let's start a central discussion place here for all to contribute to.
There's quite a few things I haven't tried, like conference calling via  address. 

 

K5DLQ
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Thanks for leading the

Thanks for leading the efforts on these devices.  They look very useful

N8NQH
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found out that...

found out that leaving the HDMI cable plugged into these video-phones will mute the main speaker (Speaker-phone speaker).  Our group has a 3240 at the DARA clubhouse, and the clubhouse has a nice projector system; we demonstrate surfing mesh and making phone calls with the phone connected to this  projector TV (via HDMI cable). 

If the phone receives a call, the ringing audio is re-routed from the phones speaker to the HDMI port if the phone is connected to a display device via HDMI.  Apparently the projector there still has some signal present on its HDMI ports... even with the projector is not powered up; as the main audio was being re-routed  away from the phone even though the projector was not running.

The fooler to me was that when picking up the handset... everything worked through it regardless whether the HDMI cable was connected or not.

We're now going to try and remember to unplug the HDMI cable from the phone when not doing a presentation with it.

K5DLQ
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Is there a setting to select
Is there a setting to select the speaker/hdmi audio?
N8NQH
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it didn't even dawn on me to

it didn't even dawn on me to look for these types of settings.

On page 172-175 of the users manual, found  instructions on how to set the HDMI output resolution and audio steering.


In LCD Settings->Sound, there is an audio channel setting "HDMI". If it switched on, the audio channel will be use the HDMI device. Otherwise, the audio channel will be used locally.

k1ky
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Grandstream GXV3240/3275 "remote" dialing feature
I discovered that you can log into a GXV3240/3275 admin page and have it dial another phone over the MESH!  Probably a similar feature in other phones.  There is a similar ICON on a 1630, but it doesn't seem to do anything. Maybe a future feature.
 
Once you log into the phone with your browser, there is a picture of a phone under the EXIT / Language area in the upper righthand corner.  Just click on the phone icon and you can dial any number, PBX extension, IP direct, etc.
 
Pretty cool - now to figure out a practical application for this "feature".  Seems to be in the newer firmware releases. Be sure to keep your phones updated!
N8NQH
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now to figure out a practical

now to figure out a practical application for this "feature". 
 

this type of functionality reminds me of troubleshooting tools. For this one, you could remotely dial-out any IP phone on the network & initiate a call.  Say... a call-back to you... after you made changes to this remote phone and want to do a final test without having to visit the device physically.  I mean, you could change the Caller ID info that's sent out from a phone, then have it call your  Phone to be certain the changes took.

cool find !

k1ky
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Practiacl Applications II

Right on Tim! We have used these IP Phones for Public Service Event support. We open up a IP Phone connection between the Command Post and the Event Coordinator and just mute the microphones until we need to speak from each end.  These connections have been very reliable - even if we reboot a node, the connection stays "hooked up" upon return of the MESH path - so far we have experienced a 13 hour connection during an event..  Should something go wrong with the connection and it is "dropped", this feature could be used to have the phone on the far end call back to establish another connection without intervention on the far end.

N8NQH
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3275

I will be adding some more hints soon; but just ran across this:
http://www.ebay.com/itm/Grandstream-GXV3275-IP-video-phone-8-phones-included-Perfect-condition-/232225545436?hash=item3611b89cdc:g:S9QAAOSw241Ygk7f

sure is tempting (but would have to hide them from wifey... :) )  You don't see many used on eBay; mainly IMO because the 3240 and 3275 are current models... haven't been out in the field all that long.

I absolutely love the 3275 and its larger screen.  I can surf mesh without resorting to pinch & zoom, and the HDMI output is even more crisp & clear than the 3240 (which may be difficult to believe- as the 3240 HDMI output is decent).

N8NQH
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is all on this page

Was about to post some 3240/3275 tricks and found this Grandstream web page that had them... and more:

http://www.grandstream.com/support/faq/product-related-questions/gxv3240/3275-ip-multimedia-phones


 

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