Add to Cart The item has been added Add to Shopping List Add to Compare Quick view Aiphone IS-RS Audio Room Sub Station Model: IS-RS The IS system can unlock doors remotely on a network, assist onsite visitors from an offsite phone, broadcast emergency announcements, and communicate using a standard or PC Master Station. FEATURES Power Source: IS-CCU, IS-SCU, IS-RCU,... Aiphone $282.00 $176.25