Help for new hardware

I want (I’d like) to buy this card:
Do I need adjunctive software to make it works with *?
In your opinion do you think it s a good choice using it for a medium office wih more then 10 pstn lines?
Well they are not exactly pstn lines, they come from an anolog pbx.
Thanks in advance,

Any reason why you would not use a Digium card(s)?

No, infact I’ve als considered the new TDM2400 series,
so my question is :
can someone make a comparison between the Voicetronix and the TDM2400?
Thanks Zmanea,