In order to use your cellular phone in Cancun you must first contact your cell phone company and tell them you are going to Mexico and that you will require International Calling. You can purchase one month's worth. Depending on your service you will be charged a set-up fee. The per-minute cost generally runs $1.00 +.

If you are using a Nokia or Bell Mobility you need GSM and TDMA capability or your phone will not work in Mexico...Blackberries have the GSM card.

Don't forget to update your roaming software where applicable.

AT&T, Nextel, Telus and Verizon all work in Cancun.

You must set up international calling with your cell phone provider. When calling out from Mexico you must dial "001 area code and phone" or you may not get a connection to the number you are calling.

Upon arrival in Mexico "update" your cell to locate tower *228.

If you are using Verizon you can add I-Dial to your number, which allows calls from Mexico to the U.S. for .99 per minute roaming charge. There is no charge for the I-Dial service. Rate may change. Check before leaving.

With AT&T when you get out of the airport turn your phone on and let it find that you are in Mexico. To call home press and hold the 0 (Zero) until you get the + than dial your number.