Door entry control for 1 entry phone, provides C.O. sharing, call waiting and one auxiliary contact. The C-200 allows a single line phone or phone system to share a phone line with an entry phone. Tenants may answer an entry phone call and converse with the visitor. The C-200 provides a Call Waiting tone when the phone line is in use. Tenants may call out to the entry phone for monitoring purposes. Auxiliary contacts are provided to operate a doorbell, or activate a camera, lights, etc. If additional features (such as doorstrike, multiple entry phone with caller ID, and keyless entry) are needed, use the Viking model C-2000A. Applications Add an entry phone to your standard home or office phones to provide door communication Provide commercial or residential security via two-way handsfree communication at the door and gate Connects in series with a single phone line or to a phone system s unused line input (loop start trunk input) Features Allows an entry phone to share a single telephone line with a residential or business telephone system House phones ring with C.O. line cadence or distinctive ring when the entry phone Call button is pressed Compatible with these Viking entry phones: - E-10, E-20A, E-30, E-40 Handsfree Phones - K-1500-7 Stainless Steel Panel Phone - Or use with any analog touch tone phone Provide entry phone activated chimes and whole house paging when used with Viking model SLP-1 Produces double Call Waiting tones One set of normally open and normally closed contacts available for operating a doorbell, camera, lights, etc. Add door strike capability with the Viking model RC-2A Remote Touch Tone Controller