Description :
Check Line Survey Line Telephone Line Dedicated Machine Connectors Joiner

Features : Three kinds of external plug head. FSK \/ DTMF dual system Caller ID. The last number redial function group. Telecom， China Netcom， China Railcom dedicated check line. Instructions for use : Answer the call : Bell time， press the on \/ off button to answer the call. When the call is completed， press the on \/ off and hang up. Call : Press the (ON \/ OFF) button， the working indicator lights up. You can hear a dial tone after dialing. After dialing the number， if you hear a busy tone， press the (FLASH) button， the phone will automatically close the line once. When you hear a dial tone just press (REDIAL) button， telephone redial. When the call is completed， press the (ON \/ OFF) button again， work light goes out.
Package includes :
1 x Phone 1 x Junction box 1 x User Manual 2 x Straight line
Details pictures :