Color Video Door Phone with Door Answering and Monitoring Option is available in surface mount type design. HasH Control Systems is the supplier of Color Video Door Phone with Door Answering and Monitoring Option. HasH Control Systems also supplies various types of CCTV cameras, DVRs, access control systems, intrusion alarms, fire alarms, multi-apartments audio video door phones and other IP CCTV and accessories etc.Color Video Door Phone with Door Answering and Monitoring Option comes under the model number- CDV-50P. This Color Video Door Phone is available with 5 TFT LCD color monitor. Door answering and monitoring / Door release is available with this color video door phone.