Linking to an e-mail address or a telephone number

Compare these two ways of linking:

• Please don’t hesitate to e-mail or to call us.
• Please don’t hesitate to send a message to [email protected] or to call us at +31 (0)10 842 92 59.

In the first sentence, the actual e-mail address and telephone number are hidden. This will be a problem if someone wants to send an e-mail or make a call from another device than they one they’re now using. Showing the e-mail address or the number means the user can note it down for later reference, for instance.