You can make skype(TM) calls with as little as a PC, skype software, an internet connection and a microphone and speaker/headset.

It is free to make calls to other skype(TM) users on your PC. The quality of your call will be dependent on your internet connection and your equipment (microphone/headset etc).

You can improve the quality of your calls with skype certified products.

If you travel frequently a Polycom Communicator with high quality microphone and speaker allows you to hold skype conversations with perfect audio. This is great if you travel alot for business and want to avoid costly hotel phone bills. Just connect your laptop to the internet and start calling. High quality skype(TM) certified devices are perfect for businesses with international offices/clients/employees. Allowing your business to save money on calls without losing call quality. Another good product for travellers wanting to save money and still hold high quality conversations the Netgear SPH101 is a wireless skype(TM) handset and allows you to call skype(TM) contacts from any wireless hotspot that does not requrie authentication. Traveling with a wireless travel router will mean you can call from hotels with internet.

For home use a cordless dual phone is very handy. Some requrie the PC to still be on, but allow you to move away from the computer to make and receive skype(TM) calls, the Phillips VoIP 321 incorporates your existing PSTN number and your skype(TM) account to make and receive calls from your existing number and skype(TM) connects easily.

The DUALPhone 3088 and the Netgear SPH200D both do NOT require the PC to be on to make and receive skype(TM) calls. Both phones allow you to call and receive calls from skype(TM) contacts and from your existing PSTN number. Plus you can make calls using cheap skypeOUT credits.

More skype FAQs here

Read a helpful skype article from The Age skype loses PC Tethers

Find information on the products mentioned here:

Netgear SPH200D | Polycom C100S skype(TM) Communicator | DUALPhone 3088 | Netgear SPH101