[Asterisk-Users] Quad T1 Card

[Rich Adamson]

Sean Cook wrote:
>> One of the primary differences between the two cards is the Sangoma
>> h/w echo canceler handles more cases of echo then do the Digium cards.
>> Whether you need that additional coverage is 100% dependent on your
>> specific implementation (eg, your T1/PRI provider), and not on what
>> the list thinks about the two products.
>>
>> Since there are no affordable tools to truly quantify echo for each
>> specific implementation, as a pbx engineer your toolkit should
>> probably include both cards. Sort of like try the less expensive card
>> and if it doesn't address your echo issues, then try the more
>> expensive one.
>>
> 
> No offense but isn't that like saying .... "Don't take what the list has
> to say about your purchase... instead you should guess and hope you get
> the right answer... but if you don't, gamble again and buy two cards?"

The list cannot guess at what level of echo "you" are going to incur, 
therefore there is no way for anyone to accurately tell you how to 
address issues. Both cards are quality products, but with slightly 
different operational characteristics.

If you can't afford to purchase both cards, then a safe bet is to simply 
purchase the Sangoma card since it can address more echo issues then the 
Digium card.