How do you punctuate phone numbers in Japanese?


Given the phone number in English:

> (012) 345-6789

how do you write this in Japanese? Is it:

> （０１２）３４５－６７８９

or:

> ０１２・３４５・６７８９

or somewhere in between? My personal research suggests the first one is the
right way to do it, but I'm suspicious. Thanks!




On my (and others') Japanese business cards, we use spaces or dashes, never
dots. International formatting is appropriate, even if you don't expect to
give your card outside of Japan. So these are all appropriate:

  * 03 XXXX YYYY
  * 08-XXXX-YYYY
  * 080 XXXX YYYY
  * 080-XXXX-YYYY
  * +81 3 XXXX YYYY
  * +81 90 XXXX YYYY

Out of my many business cards, I have none that use parentheses for the area
code. A couple of times I've seen parentheses used for a small edge case of
international dialing, like so:

  * +81 (0)80 XXXX YYYY




I have never seen dots been used during my entire life; dashes are used.

