[Asterisk-Users] How much bandwidth needed?

[Marcin Kwiatkowski]

Crazy Boy wrote:

> Hi Friends,
>
> I am implementing Asterisk PBX in our office with 180 extensions. In
> our office, we will make 3 calls to USA daily. We have 1 MBPS
> bandwidth from ISP and 100 MBPS bandwidth in our LAN.  I have two doubts.
>
> 1) How much bandwidth should we allocate for making VOIP calls?  What
> can be the projected use of bandwidth to make International VOIP calls?
>

It depends on codec you are using. G711 needs 64kbps for raw voice
stream (add protocol overhead).

> 2) Can I use Pentium IV system, 2.6 GHz processor speed with 512 MB
> RAM as dedicated Asterisk server?


Of course. It will be enough. But if you want to transcode fe. between
iLBC and Speex it will consume much more CPU power.

>
> 3) Now I am making calls to USA using Voipjet.com provider. How can I
> receive incoming calls through VoIP? How can I get my own incoming
> VoIP number?


Look for DID service.

>
> Looking forward for your reply.
>
> Thanks&Regards,
> Chandra.
>
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-- 
Marcin Kwiatkowski
System Administrator
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Fix: +48 33 819 04 60 ext. 32