domain Tech Domain value?

PLEASE APPRAISE - Tech Domains

If any and all of the valuation experts can provide a valuation of the following domains, that would be greatly appreciated! I understand that this site is for domain names but I wanted to also include the corresponding Vanity Toll Free Numbers that lend a little more value:

VoIP (Voice Over IP) Premium domain names and Toll Free Numbers:

>>> Very similar to the grandaddy of VoIP - Net2phone! <<<
http://VoIP2phone.com
http://VoIP2phone.net
and
http://VoIPtoPhone.com
http://VoIPtoPhone.net

http://NexVoice.com
http://NexVoice.net
1.800.985.VoIP (8647)
1.800.985.FAX1 (3291)
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WiFi/Wireless Premium Domain Names and
Toll Free Numbers:

http://WiFinity.com
http://WiFinity.net
1.877.WiFinity (943.4648)
1.866.WiFinity (943.4648)

http://1-800-WiFi.COM
http://1800WiFi.COM
1.800.WiFi.COM (943.4266)
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Please forward all questions to me at [email protected]