Call Waiting Deluxe is the Bellcore (now Telcordia Technologies) term for Type II caller ID with Disposition Options.

This CLASS-based POTS-telephone calling feature works by combining the services of call waiting with caller ID but also introduces an "options" feature that, in conjunction with certain screen-based telephones, or other capable equipment, gives a telephone user the option to

• Switch: Place the current call on hold to take the second call (not a new feature)
• Hang-up: Disconnect the current call and take the second call
• Please Hold: Send the incoming caller either a custom or telephone company-generated recording asking them to hold
• Forward to Voice Mail: Send the incoming caller to the customers voice mail service.
• Join: Add the incoming caller to conversation in a form of reverse three-way calling.

For more information, please see the Analog Display Services Interface article.