Check Line Survey Line Telephone Line Dedicated Machine Connectors Joiner

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 :