T 3.15 Improper use of answering machines

There is a risk of the incorrect use of an answering machine. Some answering machines are fundamentally prone to incorrect use; because they have function keys with double or even triple assignments for example. This problem is compounded by the keys being so small and close together that incorrect handling becomes almost inevitable.

It may happen that an answering machine will ignore incoming calls as a result of incorrect use. This could happen, for example, if the machine is turned off or the outgoing message is deleted inadvertently by the pressing of a button.