Complex sentence: For quite some time, it had the toll-free telephone number (800) 999-9999, and ran commercials on radio and TV telling people in need of its services to "call 1-800 and then just keep pressing 9".
Split into simpler sentences: For quite some time, it has had the toll-free telephone number (800) 999-9999. It ran commercials on radio and TV telling people in need of its services to "call 1-800 and then just keep pressing 9".