... beep continued for 15 sound, but answer 1 minute,then end the CALL state. B,If off- ... Will beep 'ding-dong' stop ringing ,about 1 minute, then entering standby.If off-hook, then stop ringing ... again, Outdoor monitor weight 15 beeps, re-timed one minute. 2,If the Indoor monitor not ring, the ... Outdoor monitorweight 15 beeps, re-timed one minute. ten numeric keys and one call key and two leds 1V1 white ...