HTC DROID Incredible - Manual (Page 63)

Phone calls 
In the email body, tap the phone number. The phone dialer screen
opens with the phone number already entered.
The phone will recognize a number as a phone number if the number
has a minimum of  digits and have at least one of the following:
Numbers preceded by a “+” in front. For example, +1-9--
1 or +191.
Numbers enclosed in parenthesis in front. For example,
(0)91 or (0)9--1.
Numbers separated by dashes. For example, (0)-9--1
or 09--1.
Tap Call.
For more information about email, see the Email chapter.
Making an emergency call
On the phone dialer screen, dial the international emergency number
for your locale (for example, 000), and then tap Call.
Your phone can only operate when in a CDMA service area.
Using Assisted Dialing
Assisted Dialing allows you to easily dial international calls while
roaming in another country.
Turning Assisted Dialing on
Press HOME > MENU, and then tap Settings > Call > Assisted
Dialing.
Select the
Enable Assisted Dialing check box.
Under Reference Country, select the country that you want to
call.
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