Spceifications | System Features | Station Features DK Series System DDK-310 SYSTEM Specifications Item Card DK-310 Trunk Port   3 (ordinary 2 Ports, expandable to 3) Extension Port   10 (ordinary 6 ports, expandable up to 10) Main Board 1 including 2 Trunk Ports, 6 Digital Extension Ports Expansion Board 1 including 1 Trunk Port, 2 Digital Extension Ports, 2 Analog Extension Ports Function Board A 1 Voice DISA, RS-232 SMDR Interface Function Board B 1 Door Phone Interface, Relay Power Failure Transfer   2 ports Dimension (mm)   385x245x90 Temperature   0¢J to 40¢J Humidity   30¢H to 90¢H Non-condensing Power Requirements   90V AC ~ 240V AC 60Hz / 50Hz Reg. Phone Line Loop Resistance   420 Ohms(not include phone)       System Features Alarm-System DTMF / Pulse Compatibility Remote Programming Auto Redial Flexible Ring Assignment Speed Dialing Auto C.O. Hold Hold Recall System Battery Backup ARS / LCR Last Number Redial Toll Restriction Background Music Line Queuing Auto Attendant (DISA) Broker¡¦s Call Long Speech Restriction Door Phone / Lock C.O. To C.O. Message Waiting Relay Control Call Forward Music On Hold Source SMDR Call Hold Night Mode Service External Audio Interface Call Park Night Transfer Service Station Template Call Pickup On Call Programming Switching Power Call Screen Override Call   Call Transfer Page   Common Ring Power Failure Phone   Conference Private Line   Caller ID Programmable Flash Time   Station Features Absent Message Executive Override Station Lock Alarm Clock Headset Connection Two Color LED Indicator Auto C.O. Hunting Intercom Auto Reply Voice Or Ring Call Direct Station Selection On Hook Dialing Music Ring Call Do Not Disturb One Touch Speed Dialing Loud Speaker Electronic Volume Control Programmable Feature Keys Monitor Executive Hold Programmable Ring Macro Key DK-100 | DK-80 | DK-310 | DK-816 | DKT500 | Copyright © 2003 FCI, Inc. All rights reserved.