Question : Will skype work with any voip phone?
more specifically a Cisco 7941 IP phone?
cisco ip phone 7941

Best answer:

Answer by Ben
It should do if you set it up with Skype for SIP Open Beta.

http://www.skype.com/intl/en-gb/business/products/pbx-systems/sip/

It costs about €4.95 per channel per month
(this does not include charges for outgoing calls to landlines/mobiles or an incoming phone number)