Two A108s on a box

navit.t
Posts: 5
Member Since:
2010-06-03

Hi,

Has anyone had an experience of installing two A108 cards on one box ? I am not sure if this is correct or not, we've got about 12 E1 lines and we're not sure if connecting them to two A108s on a system can do the trick.

Thanks



jpatel
Posts: 57
Member Since:
2007-05-24
Hello, As long your system

Hello,

As long your system can handle 12 E1 calls load it should be fine. We have customer running 4 x a108 = 32 E1 on quad core with 4 GB memory. If you still have questions, send e-mail to techdesk@sangoma.com with the system specs.

Best regards,

Jignesh

--

Jignesh Patel - Sangoma Technologies Inc.



navit.t
Posts: 5
Member Since:
2010-06-03
Hi, Thats good. Thank you

Hi,

Thats good. Thank you for your response. We will be installing the system on a dual-quad core system with 8 GB of RAM, having 12 E1s with a heavy queue on all of the calls. The queue connects to about 90 SIP agents.

I think there won't be any problem.



Astrosmurfer
Posts: 643
Member Since:
2009-12-28
Did You Know?
Quote:
We will be installing the system on a dual-quad core system with 8 GB of RAM, having 12 E1s with a heavy queue on all of the calls.

If you are using trixbox; did you know that it was a 32bit distribution and you'll only be able to use up to 4GB of RAM?



SkykingOH
Posts: 9682
Member Since:
2007-12-17
You won't be able to

You won't be able to transcode however you should not have any issue with over 300 concurrent calls.

I would however suggest that if you are going to run an installation of this size that you improve your sysadmin skills and learn how to Install Asterisk and FreePBX on a CentOS system.

With these skills you can use 64bit CentOS, the latest FreePBX (trixbox runs a very old version of FreePBX) that includes many improvements in Queue performance and build Asterisk in a 64 bit environment.

--

Scott

aka "Skyking"



navit.t
Posts: 5
Member Since:
2010-06-03
Quote: If you are using
Quote:
If you are using trixbox; did you know that it was a 32bit distribution and you'll only be able to use up to 4GB of RAM?
Quote:
I would however suggest that if you are going to run an installation of this size that you improve your sysadmin skills and learn how to Install Asterisk and FreePBX on a CentOS system.

Yeah, sadly I noticed that. So, we are going to use either Elastix (that is built on a 64-bit OS) or as said compile Asterisk and FreePBX.

Quote:
includes many improvements in Queue performance

I am aware of some of these changes made in FreePBX, according to their articles. How effective these changes are ? and will we have problems with old versions of FreePBX ? Maybe these changes are for much more stressed systems. Any experience in this area is greatly appreciated.

Quote:
You won't be able to transcode

I didn't understand what does transcode mean here. Please explain.

Thanks



SkykingOH
Posts: 9682
Member Since:
2007-12-17
Running 300 agents is a

Running 300 agents is a stressed system. The AGI improvements cut CPU over head by 50%

Transcoding is the process of converting audio from one format to another. If you had remote agents using low bandwidth highly compressed CODEC's such as g.729 you would need more hardware and possibly a dedicated transcoder card (a special PCI card with DSP's on it).

--

Scott

aka "Skyking"



navit.t
Posts: 5
Member Since:
2010-06-03
We've got 300 phone lines

We've got 300 phone lines but about 70 - 100 agents. I am going to stress test the installation with SIPP before deployment. Sure if it fails I am going with an Asterisk and FreePBX rebuild



Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.