1.Text me.

2.The battery of my mobile phone is dead.

3.I often turn off my cellphone when I have a meeting.

4.His cellphone is busy now.

5.There is no signal.

6.Can you hear me clearly?

7.Your cellphone could not be reached.

8.My balance is not enough.

9.I have to charge my account.

10.My mobile phone is out of service.