[Asterisk-Users] isdn, modem, etc.

[Shoval Tomer]

I see many posts about using ISDN cards and modem cards.   Does this mean I can use a regular modem (that supports voice) as an FXS, or FXO ?   If so, can you provide an example.   It might be the easiest way to test Asterisk's collaboration with the PSTN (or analog phones) and provide proof of concept to non-believers.   Thanks.     Shoval