Re: [Server-devel] [XSCE] Proposal | SIP VoIP server on XSCE

[Alex Kleider]

On 2016-10-15 13:02, Sameer Verma wrote:
On Fri, Oct 14, 2016 at 5:12 PM, Anish Mangal  
wrote:

Following from:
http://www.en.voipforo.com/IAX/IAXvsSIP.php

If SIP is using a server signaling messages always pass through the 
server
but audio messages (RTP flow) can travel end to end without passing 
through
the server. In IAX, signaling and data must pass always through IAX 
server.
This increases the bandwidth need by the IAX servers when there are 
many

simultaneous calls.


This is a big drawback of IAX it seems, especially in a mesh setup, 
where in
many cases, the available bandwidth between clients may be higher via 
direct
node routes compared with the bandwidth via the server route. It seems 
SIP

will utilize the network more efficiently in a mesh topology.

Yesterday we were testing this on the server, and two nodes with three
client. The data was being sent directly client -- node -- node -- 
client,

and virtually no bandwidth was being used on the server. :)


Not always the case. One of my students worked on her thesis where she
set up a bunch of XO-1 laptops over a 802.11s (draft) mesh and tested
simultaneous calls to look for saturation, etc.
https://www.dropbox.com/sh/0gszp4447j1g2qn/AAAxdUv_tNbstjzmD6BI1-jla/tilila-moujahid-thesis.pdf?dl=0

I'll see if I can find the actual thesis.

Sameer




Tilila El Moujahid presented her set up at one of the annual olpc-SF 
summits held a few years ago.

The next summit is coming up soon.
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Re: [Server-devel] [XSCE] Proposal | SIP VoIP server on XSCE

[Sameer Verma]

On Fri, Oct 14, 2016 at 5:12 PM, Anish Mangal  wrote:
> Following from:
> http://www.en.voipforo.com/IAX/IAXvsSIP.php
>
> If SIP is using a server signaling messages always pass through the server
> but audio messages (RTP flow) can travel end to end without passing through
> the server. In IAX, signaling and data must pass always through IAX server.
> This increases the bandwidth need by the IAX servers when there are many
> simultaneous calls.
>
>
> This is a big drawback of IAX it seems, especially in a mesh setup, where in
> many cases, the available bandwidth between clients may be higher via direct
> node routes compared with the bandwidth via the server route. It seems SIP
> will utilize the network more efficiently in a mesh topology.
>
> Yesterday we were testing this on the server, and two nodes with three
> client. The data was being sent directly client -- node -- node -- client,
> and virtually no bandwidth was being used on the server. :)

Not always the case. One of my students worked on her thesis where she
set up a bunch of XO-1 laptops over a 802.11s (draft) mesh and tested
simultaneous calls to look for saturation, etc.
https://www.dropbox.com/sh/0gszp4447j1g2qn/AAAxdUv_tNbstjzmD6BI1-jla/tilila-moujahid-thesis.pdf?dl=0

I'll see if I can find the actual thesis.

Sameer

>
> On Sat, Oct 15, 2016 at 5:07 AM, Anish Mangal  wrote:
>>
>> Will look into IAX2. Is it supported by apps on different clients? For
>> SIP, there are usually many client options available on various platforms.
>>
>> On Fri, Oct 14, 2016 at 9:22 PM, Sameer Verma  wrote:
>>>
>>> What server/service are you using? Look at IAX2 as well. Usually IAX2
>>> does better on networks because unlike SIP, session initiation and voice
>>> call happen on the same port.
>>>
>>> Sameer
>>>
>>>
>>> On Oct 14, 2016 4:48 AM, "Anish Mangal"  wrote:

 Hi,

 A SIP server on the XSCE will allow for VOIP services (audio, video,
 text). There are numerous SIP clients on various platforms so it seems a
 good protocol and standard to build upon.

 I have already included a SIP server in the upcoming deployment of XSCE
 and mesh in Spiti, north India.

 Thoughts?

 Best,
 Anish


>>
>>
>>
>> --
>> Anish
>>
>>
>
>
>
> --
> Anish
>
>
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[Server-devel] lvm and raid

[Tim Moody]

a project using donated hardware has several 250g disks rather than a single 1 
tb disk, so the use of raid (via bios) or lvm to create a single virtual disk 
is appealing.


any experience with performance that should be considered?


I am tempted to create physical partitions for root, swap,  and boot and then a 
virtual disk for /library?


comments?

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Re: [Server-devel] [XSCE] Proposal | SIP VoIP server on XSCE

[Andrew Ruthven]

On Sat, 2016-10-15 at 07:23 +0530, Anish Mangal wrote:
> The current target is often places not connected to the internet, but
> supported by mesh. 

It might be worth talking to the Village Telco folks and see if you can
do something that'll work with their solution.  See:
https://villagetelco.org/mesh-potato/

They're using Asterisk on their devices.

Cheers,
Andrew

-- 
Andrew Ruthven, Wellington, New Zealand
MIITP, ITCP

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