Calling features

service that sends phone caller's number to the recipient of the phone call

A voicemail system (also known as voice message or voice bank) is a computer-based system that allows callers to leave a recorded message when the recipient has been unable (or unwilling) to answer the phone. Calls may be directed to voicemail manually or automatically. The caller is prompted to leave a message that the recipient can retrieve at a later time.

telephone call with several participants

ability of the telephone network to redirect an incoming call from one number to another

telephone call at the called party's expense

a telephone service