Samsung SGH-D415MSATMB - Manual (Page 116)

Sound Settings
113
Error Tone: sets whether or not the phone informs you
when you make a mistake.
Minute Minder: sets whether or not the phone beeps every
minute during an outgoing call to keep you informed of the
length of your call.
Connect Tone: sets whether or not your phone beeps when
your call is connected to the system.