Do you regularly communicate with a particular person or several people who also have BlackBerry devices?
BlackBerry handhelds can send and receive email messages that are routed through your existing email account. You can also use your handheld to send and receive peer-to-peer, or PIN, messages. All BlackBerry devices are assigned a unique personal identification number (PIN), which is used to identify the handheld on the network. Provided you know the PIN of another person's handheld, you can add it to your Address Book and use it to send a PIN message directly to that person.
To locate your handheld PIN, open the Options application on the device. The Options screen appears; select Status. The PIN field within Status displays your handheld's PIN, as shown in Figure 2-9.
Figure 2-9. Use Options → Status to locate your handheld PIN
PIN-to-PIN messages are not routed through an email account—they bypass your mail server and do not appear on the desktop. They are routed directly from one handheld to another through the wireless network using the devices' unique PIN numbers. An advantage of this is that it provides a measure of communications fault tolerance, an alternate way to route a message in the event the mail system is not available.
PIN messages can also be helpful during troubleshooting. Send a PIN message to ...