How do you dial on your phone in saints row 3 for xbox360?

To Bring Up Your Phone: press the back button

Mission is the top center choice. Hightlight it and press A and it will show you your mission list

For activities such as insurance fraud, trafficking, Guardian Angel, Prof. Genki, Heli Assault, Trail Blazing, Snatch, Escort, an Tank Mayhem you need to selet the Map, which is the top cleft option on our cell phone. Pres don on the Dpad to select Activities to have the Map only display activities

For Assassination, vehicle theft, and challenges chose the top right option on the cell phone (Saints Book).

Or if yours just trying to call someone you can use the botom left option that says Phone. This will list all the contacts currently in your phone

I can access the phone ok but I can't dial, how do you do that?

You can't dial, sorry I wish you could aswell