By Edmond from KS
I work at Radio Shack & we are told to advise customers that fax machines are not to be used with Magic Jack.
From their site's FAQ:
Can I send and receive faxes using magicJack?
Sometimes. We do not officially support using faxing with magicJack.
Please try the following steps to use magicJack with your fax (contact your fax manufacturer for details):
1. Turn off error correction on your fax machine or program
2. Set the fax machine or program to use the slowest speed available
3. Increase the speed, checking at each speed that faxes work.> hth
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