What is the proper syntax for phone numbers for gmail sync'ing?

[johnc4510]

Which syntax is proper for phone numbers in gmail contacts?

a. 1-555-555-5555
or
b. 555-555-5555

My phone comes Monday and I want to get the syntax correct.

thanks

 

[takeshi]

Don't think it really matters. Mine are formatted (555) 555-5555.

 

[Backnblack]

Same here,,,Never used the 1