8 Panasonic KX-T7730 Black Phones + KX-TA824 System + Voice Mail/Caller ID Advanced Hybrid Telephone System, 3 CO's, 8 Stations, Expandable to 8 CO's, 24 Stations The KX-TA82483 expands the system to support an additional 3 incoming phone lines and 8 telephone extensions. The Panasonic KX-TA82493 caller ID card allows caller ID information to appear on the display of the proprietary analog telephones. The KX-TVA50 voice mail system uses solid-state memory i.e., there is no hard drive that could fail in the future. 1 Year Manufacturer Warranty