[Asterisk-Users] How to test E1 interfacing?

[Scott Stingel]

Hi Tony-

Two E1's running on a TE405P should be a better choice, as the TE405 is
capable of "bus mastering" which gives better performance.  Besides, you
only use one PCI slot in this configuration.  However, of course you lose
board redundancy.

You can run 1 E1 port to another by using a crossover cable, as follows:

1 -- 4
2 -- 5
4 -- 1
5 -- 2

You can then use the outbound call generation capability of asterisk (see
the file called sample.call) to generate calls on 1 span, and receive them
on the other with the normal dialplan.  I've done this many times for load
testing.  You can do it on one machine no problem.

There's a little more information about this on the Wiki:

http://www.voip-info.org/wiki-Asterisk+dimensioning

Regards,
Scott


Scott M. Stingel
President,
Emerging Voice Technology, Inc.
Palo Alto California & London England
www.evtmedia.com 

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Tony Mountifield
Sent: Tuesday, June 29, 2004 2:00 AM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] How to test E1 interfacing?

Hi,

I have a project coming up which will need to interface Asterisk to
E1 trunks in the UK. I have a couple of questions which I hope someone can
answer, or give me some pointers:

1. If I want two E1 trunks, is there anything to choose, performance-wise,
   between using two ports on a single TE405P, and using two E100P cards?

2. How can I test the E1 operation in the lab, which doesn't have an
   E1 line available, before taking the unit to the installation site?
   Can I run two Asterisks back-to-back? Can I run one port into another
   on a single TE405P?

I couldn't find anything on the above in the Wiki; if I didn't look hard
enough, please tell me where I missed. Thanks.

Any advice would be gratefully received!

Cheers
Tony
--
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org
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