[asterisk-users] PRI Card

[Eric "ManxPower" Wieling]

mail-lists wrote:
> Jared Smith wrote:
>> On Thu, 2007-07-19 at 11:28 -0400, mail-lists wrote:
>>> We're in the process of moving to a PRI circuit for our asterisk switch.
>>> Can anyone point me in the right direction as far as PRI Cards are
>>> concerned?
>> You haven't given us many details on your setup, but I'll take a stab at
>> answering your question anyway.  For a single-port PRI card, I recommend
>> the Digium TE120P card[1].  It can be configured for either T1 (United
>> States and Canada), E1 (Europe, South America, and most of the rest of
>> the world), or J1 (Japan).  It will work with both channelized T1s as
>> well as PRI circuits.  This is a PCI card, and will work in either a 3.3
>> volt or 5 volt PCI slot.
>>
>> [1] http://www.digium.com/en/products/hardware/te120p.php
> Jared,
> 
> thanks for your reply - Our setup isn't complicated at all - just a PRI 
> coming into an asterisk box. Maybe you could answer another question for 
> me - what disadvantages does a PRI have from a channelized T1? or vice 
> versa.
> 
> is the TE205 the double port version of the TE120P?
> 
> 
> Also, what's required as far as echo cancellation goes? Is that built 
> into these cards or do you have to move up to a TE207P?
> 
> What is the difference between a TE205 and a TE210?
> 
> 
> Sorry about all the qeustions - the info on digiums web site doesn't 
> really make this clear.

The ONLY disadvantage of PRI is (maybe) cost.

Channelized T-1 is basically a T-1 version of 24 analog ports.