Can I make voice calls through a dial-up modem?

Question

Telephony

If so, what software for Windows is available for these tasks?
PS. There are two devices available: ZyXEL omni 56k mini and D-Link DFM-562E

Answer 1

You can, here's a cursory googling of the software that gave.

Answer 2

To make voice calls through an analog modem, the modem must be a voice modem. This is your second modem.
From the software for such purposes, you can use VentaFax.

Answer 3

www.ventafax.com/index.html