[Asterisk-Users] Multiple E1s on one box

[Rusty Shackleford]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Jorge Alayon
> Sent: Wednesday, June 08, 2005 2:47 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: RE: [Asterisk-Users] Multiple E1s on one box
> 
> 
> Answering both questions:
> 
> 1) I am connecting to a Meridian usin a SIP E1 Gateway in R2. 
> I just bought the card and one of my test will be direct R2 
> connection. Have not tried yet.
> 2) I was told you can do 12 E1 as long as it is G.711, but 
> nobody is telling me how many E1s per box doing G.729. I have 
> read twice that 80-90 ports is possible, but others tell me 
> that no more than 30 is possible. Of course, the biggest one 
> box CPU in consideration is a Dual XEON 3.0 with 1 GB RAM.

I believe that 12 E1 is a bit optimistic. Maybe not. I'm extrapolating
from the translation times I have at hand here.

I do believe Digium's statements that 80-90 simultaneous G.729 <--> ZAP
conversations is the practical limit on a dual Xeon box. 

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