【Caller ID Telephone】Clearly shows caller ID that office and home use is more convenient. 30 group call number storage inquiry, you can long press the "call in" to quickly check the information.
【Level Volume 】Two optional level volume to control on the side, more intimate.
【 and Reliable】Lightning/anti‑jamming function, more efficient and safer.
【Function】/DTMF standard caller ID, never miss important information. Built-in 5 group call number and call time query, support callback function and one-key replay function.