Asterisk/TE410 (Site A) <---> 30 channels in the service provider network <---> Asterisk/TE410 (Site B)
With the 31x64kbps leased line the service provider gives the following specifications:
Max bandwidth: 1984kbps
Framing: G.704
Line encoding: HDB3
Customer interface: Electrical G.703
With the E-1 the service provider gives the following specifications:
Max bandwidth: 2048kbps
Framing: Clear Channel
Line encoding: HDB3
Customer interface: Electrical G.703
The question is will either one work with Asterisk? And what are pros and cons of each service for use in conjunction with each. Could I run a PRI protocol over either one since I will cintrol both ends?
On 9/23/06, Jay R. Ashworth <[EMAIL PROTECTED]> wrote:
On Sat, Sep 23, 2006 at 08:22:18AM +1000, Eric Bishop wrote:
> We are looking to interconnect 2 Asterisk boxes at seperate sites via a TDM
> leased line, rather than IP mainly for commercial reasons. Our network
> provider is offering us either a 31x64kbps leased line or an E1. Am I just
> ignorant or are these the same thing? An E1 has 30 B channels and 1 D
> channel. That is also I guess what we would run over the 31x64kbps leased
> line so what is the difference? Which should I choose and would work best
> with Asterisk.
My intuition is you're gonna spend a whole lot of extra money on
interface cards doing it that way.
An E-1 is a 32-timeslot circuit; usually broken up as 30B+1D+sync.
If you get it as unframed data, rather than a PRI, you can have all 31
slots to yourself, since you don't need one to talk to the switch.
You might want, if you can, to expand on your "commercial reasons". If
you're getting a leased line, you can *still* put the appropriate
half-bridges on each end, and run IP over Ethernet over that line...
which would probably be cheaper than the T-cards.
Plus, I'm told that it's a Bad Idea to have multiple T-cards in one
chassis... though I can't imagine why...
Cheers,
-- jra
--
Jay R. Ashworth [EMAIL PROTECTED]
Designer Baylink RFC 2100
Ashworth & Associates The Things I Think '87 e24
St Petersburg FL USA http://baylink.pitas.com +1 727 647 1274
"That's women for you; you divorce them, and 10 years later,
they stop having sex with you." -- Jennifer Crusie; _Fast_Women_
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