Do u use mobile phone on working hours?

hmm, not really on working hours because im still a student but i do text during my classes. i have learned to become so good at it and the teacher doesnt even catch me. :) lol

I do use Mobile Phone during the working hours as it is required for my job. Currenly I am a project manager and needs to address customer queries at all times of the day, so have the mobile phone on during working hours. I do switch it off once I am back home as I don't really want intrusion into my family life and only my family members can reach me on my personal number. Cheers! Ram