A service feature is a capability added to a phone line in addition to the basic capability to make and receive telephone calls.

Examples:

• Automatic redial
• Anonymous Call Rejection
• Three Way Calling
• Call Return
• Voicemail
• Caller ID
• Call waiting
• Call forwarding
• Conference call
• Calling line identity
• Ring when free
• Camp on
• Call Block
• Speed Dial
• Secondary Ring (A second # rings when it is dialed. This is NOT another phone line, simply a different ring, also known as RingMaster or MultiRing)
• Fax Voicemail (Stores faxes in voicemail for later access)
• Call Trace (NOT Call return. User dials a code after an incoming call to send a trace to the # that called. User then must have phone company or annoyance call center get info on call. Used for annoyance calls.
• Call Selector (Allows multiples ringtones for incoming numbers)

Calling features