<br><br><div class="gmail_quote">2009/2/13 Alex Balashov <span dir="ltr"><<a href="mailto:abalashov@evaristesys.com">abalashov@evaristesys.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Olivier wrote:<br>
<br>
> I thought that, with PRI, it was possible to play using a single E1/T1<br>
> port and a T1/E1 loopback adapter (a RJ45 plug with properly assigned<br>
> wires which makes any outgoing call an incoming one on another PRI<br>
> channel) ?<br>
><br>
> For lab testing, this kind of trick seems very useful.<br>
> I've never tried it yet but is it correct ?<br>
<br>
No, because HDLC and ISDN Q.921 would not come up. That requires two<br>
distinct endpoints and a bidirectional traffic exchange.</blockquote><div><br>Thanks for correcting me !<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<br>
I think some Sangoma cards have a mode where you can put the "port" in a<br>
certain kind of "loopback" mode for this type of thing, but I am not<br>
sure--and in any case, that is a different concept.<br>
<br>
--<br>
Alex Balashov<br>
Evariste Systems<br>
Web : <a href="http://www.evaristesys.com/" target="_blank">http://www.evaristesys.com/</a><br>
Tel : (+1) (678) 954-0670<br>
Direct : (+1) (678) 954-0671<br>
Mobile : (+1) (678) 237-1775<br>
<br>
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