Cost effectiveness for your customers. Those who might need you but are not willing to carry the cost of a mobile call will enjoy the cost of sending you a page at almost no cost. A Cellular phone has a short battery life. Using a pager to screen calls means you can keep your cellular phone turned off and save on battery power for times you truly need it. If you are talking on the cellular, you can use a pager to screen other calls and find the most urgent ones.
Some cellular phones have a limited clear reception area.
Pagers can receive messages even if your phone is out of range. When your pager is off or out of range, FLEX will let you know that the message has been missed. With FLEX , a pager's battery can potentially last ten times as long as it does now. 20 message slots. Convey a complete message of up to 200 to 400 characters.