How can I get telephone support for a desktop version of Turbotax? There doesn't seem to be a phone number where they aren't asking questions about the online version.

You can get customer support for desktop software.  (You cannot get TurboTax Live--if that is what you mean).

 

To call TurboTax customer support

https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number

They are available from 5 a.m. to 9 p.m. Pacific time

 

https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number

 

https://twitter.com/TeamTurboTax

or

https://www.facebook.com/turbotax