How many channels my server can handle

[pejie]

Good Day Everyone,

I would like to ask if how many channels my server can handle. Here is my server set up:

Server
Dual Xeon 5150, 4 Cores / 4 Threads, 2.66Ghz - 2 processors
8GB DDR2
500GB Hard Drive
20TB Monthly Transfer
OS: OpenSuse 12

Vicidial
VERSION: 2.8-428a
BUILD: 140305-0846
Codecs: ULAW and ALAW
VOIP: apntelecom with 100 channels

I like also to ask on what are the settings to use the maximum channels.

Thanks,

Pejie

[omarrodriguezt]

Hello Pejie,
Welcome to the community!
The amount of channels that your server can handle depends it depends of:
The codec you are using (G729, g711)
your actual internet speed (20TB Monthly Transfer, but this does not said the speed (down/up)


But you can have an idea of the amount of channels here:
http://download.vicidial.com/iso/vicibo ... nstall.pdf

[pejie]

Hello Omar,

Thanks for the reply.
Here is our internet speed:
Download: 74.53 Mbits/s
Upload: 13.62 Mbits/s

We are only using ULAW and ALAW codecs. We dont have license yet for g729 codec.

Thanks

[omarrodriguezt]

Hello,
For Voip the better is to have symmetric Bandwith (same upload as download), because if not, your limit is defined by the lowest.
In your case 13.62 Mbits/s
For calculation, take this in consideration:

You have available 1.70 MB/s that will be used not only for Voice, but also for data transfer(web, data base, etc)
Lets said that you will have 80% available for Voip 13.62 *0.8 => 10.88 MB/s
G711 Needs at least 64 Kb/s

10880 KBs/ 64 KBs = 170 Channels

See more details here:
http://www.asteriskguru.com/tools/bandw ... ulator.php