Text Before Calling

Hi.  Many of you have probably noticed by now that I prefer to send you a text or email before calling you on the phone.  I make a considerable effort to strictly adhere to this personal policy as a gesture of respect.  I am merely trying to be very considerate and respectful by not calling you when you're working or otherwise occupied.  I would love to chat with you, preferably in person, at a mutually convenient time.  I also have a very busy schedule and ask that you please extend the same courtesy to me.  I usually turn my phone off while I'm at work in accordance with a company policy I am charged with enforcing.  What right have I to enforce a rule or policy unless I intend to abide by it myself?

Thank you for your understanding and cooperation in this matter.