From ASUS Web Site:

Technical Support
Motherboard and General Product Support:

For ( USA and CANADA Customer only)
please visit our website at
http://helpdesk.asus.com to obtain a
technical support case number before
talking to our technical support agents.

What is doesnt say is whether there's a charge for those phone calls.
Are they pay per incident, or free for a certain amount of time. If
they are free, how long are they free for (1 year, 3 years, etc...

Also, what kind of response times are there for email support ?

Thanks