A good assortment of hardware exists which can be used to support VOIP phone calls
and fax transmissions. Each VOIP company makes specific hardware devices available
to their subscribers. Following are some of the more popular devices:

Phone Adapter
This device includes standard phone jacks and fax jacks and requires a connection
directly to the modem.

Wireless Phone Adapter
The same as a phone adapter but with a wireless connection.

Phones/Wireless Phones
These are specially designed to connect directly to the modem and support VOIP calls.

WiFi VOIP Phones
Allow VOIPcalls to be made from wothin a WiFi network.

Keychain Phones
These must plug in to the USB connection on a computer but can be used to make
VOIP calls from any remote computer with a broadband connection.

Remember to check with your company to make sure they support your desired
hardware devices.