Some additional details for your chart;
Polycom SountPoint 3XX series, does support PoE, also works with a 24 VDC local power supply, has a WEB GUI, can also be loaded from TFTP, can support 2 lines

SNOM 300, runs from local 5 VDC power supply, has WEB GUI

Cisco 7940/60 Must first be flashed with SIP firmware, does support PoE, runs from local 48 VDC power supply, has a simplified "list only" WEB GUI but must be loaded from TFTP to function, 7940 supports 2 lines, 7960 up to 6 lines

Thanks Mark for putting the chart together, I am sure it will be helpful for those just getting started in VoIP over mesh
73, Bill, N4SV
 

Moderator note: Thanks for your input Bill. Your comments have been added to the chart.

For your deployments, are you using some type of pbx or sip server? Or are you dialing by IP or creating local phone books of some sort?

I really like the idea of not having a centralized server to depend upon, but I also like the ability to provide off-mesh calls or having a centralized phone book.
 

Moderator note: This topic moved to a new thread under VOIP. Please reply on that thread.

Since most (all?) VoIP phone support a central phone book via LDAP or HTTP, maybe a small program could be written to create and sync-up a phone book across the mesh and write them to a local LDAP/HTTP server. The phone just sees the local service.

For it to be truly decentralized, some type of gossip/peer discovery protocol would have to be used for info exchange.

Could be a fun project. 

Moderator note: This topic moved to a new thread under VOIP. Please reply on that thread.

Grandstream phones I am using.  

Both phones can also dial direct by ip address.  

I have tried the GXV3240.  Works the same as the others but is touch screen and can make video calls. It runs a version of the android operating system and yes I did try to install the sevral mesh software on it.  It did install and did work sort of.  Worked fine in speaker mode but if you want to use the handset the software and the phone gets confused.  I tried 2 phones over mesh which worked fine but I am sure once you get more then a few there will be bandwidth issues.  

I am also using the UCM6104 as my controller.  Very easy to configure, only 12v power requirement, It has the ability to add 4 land line connections or use an online phone service if internet is available for outside calls.  There is also instructions on grandstreams website on how to link together multiple controllers.  
They can be used as a portable unit or central server setup.  

Hope that helps add to the list and answer the controller question.  
 

True.  Sometimes amazon has it for about $250 which is when I got it.    Yes it is pricey but if you don't feel like running your own server on a computer it helps simplify things.   It also does a really cool auto setup on new phones for you and auto assignees the extension if you turn on that feature.   
I wanted to be able to do that plus have the extra option to add land lines or internet phone service to it.  There are a few events we do here that having that feature would be useful.  We usually spend quite a bit of time running land line cords to our county Sheriffs trailer during the county fair and sometimes other events.   The old analog system that is in the trailer has never worked properly so we use our own setup.  This helps simplify things a lot for us where we can now place the UCM6104 in the fair building where the land lines are located and just run the phones over wifi or one network cable going to the trailers computer system.  
The UCM6104 does have tons of features most that we will never use but since it helps do auto setup and simplify the operation a few of us decided to pitch in a buy it.  Most of our radio operators in the area do not have the best programing skills so we thought this would make things smoother which so far it has. Hope that helps give an idea on our thoughts here.  

Is it safe to run a 12V PoE device off of a 24V passive source? My instinct says no but I wanted to make sure.
Use case:
Ubiquiti ToughSwitch TS-5-POE outputs either 0 or 24V passive PoE. I was wondering if I could run any of the 12V ones off of that.

How are these various phones at dealing with jitter? In my test pings from a Nanostation M2 on a hillside pointing at my house, I was seeing ping times swing from 150ms to 700ms and back, with a link quality of 60%. It would probably have been better if my link quality was better.

We have use in Europe HamNET IP Phones (and soft phones: for example PhonerLite with good codec OPUS) with asterisk PBX base on DUNDi protocol

You can see online status HamNET Europe PBX:

https://www.afu.rwth-aachen.de/dundicrawler/

We have generate phone number base on callsign which is converted to DTMF code. We can use special WWW page which help generate phone number from callsign:

https://www.oe2wnl.at/calltodtmf-voip.php

or manually: NOCALL = N (62) + O (63) + C (23) + A (21) + L (53) + L (53) = 626323215353

73 Waldek SP2ONG

I have several Linksys SPA941 phones.  
POE:  no
5 Volts . . . . 12V mistake fried one (grabbed wrong wart).
4 lines
IP dialing only till I figure out more options.

 

 
 
FACTORY RESET

1. Click on key w/ folded over page symbol
2. Scroll down with scroll key to NETWORK to obtain an IP address.
3. Push the 1^st button from the horizontal four buttons for SELECT.
4. Key IP address into your browser.
5. Press the 4^th button two times (Cancel) to get back to main menu.

 
OK, let’s set parameters for our phone

1. Click on User Login
2. Click Admin Login
3. Click Advanced

 
The following in bold caps are selections on the browser screen:
 
PHONE
 

1. Enter Station Name   i.e KC8RGO-4.
2. Enter Text Logo  i.e KC8RGO-4
3. Click Submit All Changes

 
HINT:  If the screen image does not return, retransmit from the URL entry.

 
EXT 1
 

1. Enable IP Dialing set to YES
2. Make call without registration  set to YES
3. Answer call without registration set to YES.
4. Click Submit All Changes

 
USER
 

1. Key- in IP addresses of phones you want to call.
2. Click Submit All Changes

 
REGIONAL
 
Hint: date – even though it shows the example of (MM/DD, do MM/DD/YYYY)
 

1. Local Date, Time, GMT Offset
2. Click Submit All Changes

 
 
HELPFUL INFO
 
Linksys SPA Provisioning Guide

I need some guidance for a Grandstream GXP2160 VOIP phone settings to get the phone registered to operate on Broadband-Hamnet.

I use Android's native sip on my cell or tablet over WiFi or Cell. The PBX server is RasPBX.  http://www.raspberry-asterisk.org/ Yes it has FreePBX GUI. 

But I run a small codec like G.729 over wifi.. G.729 sounds like an old 3G cell phone.. But low bandwidth. So any wired SIP phone that can run G.729 and 12 volt or lower for field work. Also for field work I don't like POE. Something else you might want to think about is App-RPT for Asterisk. 

David

 

if you have a phone or other device that runs off 5vdc, then there is this option for field powering from a USB port:


I strongly recommend the one made by Tripp-Lite, it handles decent current draw, works over a wider range of applications.
https://www.amazon.com/TRIPP-U152-003-M-3-Feet-Barrel-USB2TYPEM/dp/B00L1G079Q?ie=UTF8&keywords=TRIPP%20LITE%20U152-003-M&qid=1463447605&ref_=sr_1_2&sr=8-2

 

I made one of these with an old iphone cable that went bad...  ;-)
 

Thanks for the recommendation.  I purchased pair and test running both a 5V AirRouter and 5V Grandstream phone off a 20AH USB battery pack.  I am at the 75% capacity mark on the battery after running 12 hours.  Will indeed be handy for quick field deployments of mesh router and phone.  Previously I was using a 7AH 12V battery which we much bulkier along with 12V Linksys router and 12V Grandstream phone.

Jeff KC8NNO Nashville TN

I'm looking for VoIP phones that will run off 12V batteries without excessive drain. I have several Cisco IP phones now, but they all require 48VDC.
My guess is that converting the voltage is going to be very costly from an energy standpoint, but has anyone done this, or have a resource on how to do it?
Thanks.

The Grandstream GXP1600 series run off 5v, the GXV3240/3275 run off 12v.... though the latter being video phones - they draw more current.

Do you have a USB port somewhere handy, look at post #31

I have been playing today with an air Router running AREDN 3.16.1.0 but when plugging the Cisco IP phone into the air routers LAN ports it doesn't funtion correctly, by that it doesn't reach the PBX. Plug it into a Linksys router and it works fine.
Put a switch between the UBNT air Router and the Cisco phone it works fine.

I have the feeling its to do with the VLAN's but not sure the diffrence of the Linksys LAN ports running HSMM and the UNBT running AREDN and why the Linksys works.

Andy

Model: Obihai Obi1062
PoE: Yes
Local power: 12v
Web interface: Yes
tftp: ?
Comments: I am currently using an Obi1062. Works great with excellent voice quality. Either local or Obihai Web configuration.

I am looking at some Yealink T21P E2 phones on Craigslist.  Anyone know if there are any issues with using these?  Seems like they are very similar to the T22P model listed in the OP's table.

Thanks for any input.

Kevin
KK4JZS

Aly, Two things... embed a tiny switching regulator to preserve your phone. I have trashed devices over time with higher voltages. You can backlight the display with a few well placed LEDs.