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.
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Grandstream Video Phones
Thu, 11/24/2016 - 13:41
#1
N8NQH
Grandstream Video Phones
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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.
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.
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 !
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).
http://www.grandstream.com/support/faq/product-related-questions/gxv3240/3275-ip-multimedia-phones
Just purchased a 3240. Downloaded your config file, but when I go to try and restore I get an error message that says I can't restore for a different phone. Any ideas?
Scott - NØMRZ
Scott, I've ran into that as well. Seems the backup file might be married to the phone that initially created it... or might be firmware version sensitive.
There is a way to do a partial restore; sometimes that works. Go into the Backup app, select a current backup file, then only check the "third party apps" , see if it will restore just them. Sometimes you need to click on the "third party apps" text to expand the list... and check only specific apps to restore.
Then try to restore again, click on "System Apps" only (I don't mean click the checkbox, but the name/text itself) and it should show a list of all backed up items individually. You can select individual ones to restore... the backup/restore routine may allow some of this.
The main ones are "Desktop Settings", and "Config"; might try to restore them individually.
Once you get your Grandstream phone where you want it, then do a complete backup. It's about 100mb for my 3275. The backup file can be created in the phones internal memory.... or to a USB thumb drive. The restore function defaults to looking internally... but you can tell it to look on a USB thumb drive for the file to restore.
Worse case scenario is not all that bad, the Grandstream 1600 and gxv3200 series phones work on mesh right out of the box; you can place and receive IP dialed calls with no configuration changes. From there you can change "account 1" settings to connect to someones mesh PBX; IP dialed/received calls still work along with PBX operation.
Another issue is that when I select the backup address, the only option is SD Card, it does not have the EXTSD option. However, It does show on the screen that there is an SD card in the slot.Restore is also not an option. Backup is the only option given. I unzipped your files and then copied them over to the SD card. Would it work to try copying them to the USB stick and try from there to see if it will recognize the restore files from there?