It's possible you meant to say something like:
* "Bien, llamaré a mi teléfono celular" - This means "Okay, I'll call my cell phone."
* "Bien, ¿puedo llamar a mi teléfono celular?" - This means "Okay, can I call my cell phone?"
* "Bien, necesito llamar a mi teléfono celular" - This means "Okay, I need to call my cell phone."
If you could provide more context or the full sentence, I could give you a more accurate translation.