[Asterisk-Users] Ha, just found a way around australiaapprovals......

[Dave Wolven]

Hi,

A quick ebay search turned up something like this:
DIGITAL MicroDx CROSS-CONNECT T1 - DSX.  Under 300 bucks.

This should allow you to use any number of options.  I haven't done any
research on this item, but judging by the description you might be able
to take in an external E1 and groom it out to a T1.  You can then use
the 4 port T1 card.  One port of the T1 card Connected to the DSX, and
another connected to a Channel Bank.

The second option, would be just to do a voip gateway connected to the
PSTN, and a T1 card connected to a channel bank. The Cisco MC3810 seem
to be reasonably priced...

As far as clicking, If you spend *any* time on the phone even the most
minor clicking will drive you crazy:-)

Dave




On Fri, 2003-05-09 at 02:25, Adam Goryachev wrote:
> > Of course you could pickup a cheap drop and insert csu/dsu...
> > Your Digium card would then not be connected directly to the PSTN.
> >
> > If it works for the goose.....
> 
> As an aside, it was mentioned some time ago on this list that mixing the T1
> cards with E1 cards could cause 'clicks' on the phone lines due to the
> different timing.
> 
> With a setup of one E100P card with an E1 connected and a T100P card and a
> T1 channel bank and 24 extensions.
> 
> Two questions:
> 1) How bad are these 'clicks', ie, are they noticeable to the caller and/or
> the callee?
> 
> 2) Would this still occur if you had one * box with the E100P and E1, and a
> separate * box with the T100P, channel bank, and extensions connected
> together using IAX ??
> 
> As some background, in Australia (and probably to some degree in Europe
> also) there are two major issues, one is the approval of the equipment
> connecting to the telco's network which can be worked around as Gary
> mentioned, or else using some sort of E1 <-> E1 'converter' which is
> approved as mentioned above (I assume a drop and insert CSU/DSU is basically
> that?).
> The second challenge is getting a channel bank to deal with the extensions
> in a cost sensible manner, where a T1 channel bank is *MUCH* cheaper than a
> E1 channel bank...
> 
> Regards,
> Adam
> 
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