eTera E980 & E880 4G LTE smart phone with PTT working with Real-PTT, CommCheck, Walkie Fleet ect. offers whole patrol solution, which is committed to creating an efficient security patrol system, providing high-quality products, helping users improve work efficiency and optimize work processes, increase customer satisfaction, and reduce management costs. eTera E980 & E880 4G LTE smart phone with PTT integrates the patrol function, patrol personnel can carry out paperless check-in, and the patrol data can be uploaded offline in real time to avoid lag or human damage to the patrol data. eTera’s patrol system solution is very cost effective, easy to manage, can increase quality of communication, and accelerate data transmission. It can also optimize work progress, allowing the user to monitor real-time checking action, handle alarms in real-time, and manage patrol data more efficiently.