Mircom's TX3 Hands Free Electronic Directory Telephone Access Systems are designed to provide primary resident/visitor access control for condominiums, apartment buildings, office buildings, gated communities and industrial buildings with up to 200 residents or users. Available in a surface Universal enclosure and a flush Continental enclosure, these units come complete with a microphone, tamper resistant speaker and have provisions for a postal lock and color camera to be installed. The TX3 system utilizes hands-free, full duplex telephone communications between residents and visitors for granting access into the building. The system is configurable to support both an AutoDialer (ADC) system, which uses a dedicated phone line to dial pre-programmed numbers when the unique directory code is entered, and a No Phone Bill (NSL) system, which does not require a dedicated phone line. The TX3 system comes standard as an ADC system and requires only a dedicated phone line. For NSL configuration the system requires additional hardware components such as relay cards and relay cabinets.