DPH - Doorphone using
Connection Doorphone -> Subscriber
Pressing button 
, if this button is active (switched on), is signal with single, short beep. Doorphone dials PBX subscriber or group number.After answering this call by subscriber call is established. If after finishing call subscriber hang off the hanset, to doorphone command causing its disconnection is send. Call duration time is limited to 3 minutes, after this time doorphone disconnects automatically, only signaling this disconnection with two short beeps. Subscriber hears busy signal.
When after pressing button , if subscriber doesn't answer during 3 minutes, PBX finishes calling. There is no possible to cancel call establishing.
Connection Subscriber -> Doorphone
If subscriber dials doorphone number, a call between subscriber and doorphone will be established. If after call subscriber hang off the handset, doorphone disconnects and in doorphone loudspeaker a single beep will be hears. Call duration time is limited to 3 minutes, after this time doorphone disconnects automatically, only signaling this disconnection with two short beeps. Subscriber hears busy signal.
Doorphone disconnection
Doorphone disconnects connection:
- after receiving signal # from telephone line in DTMF - after hang up by subscriber PBX sends to doorphone (Slican IPx, MAC, CCT)
- based on detection of busy signal (frequency 425Hz + -10%, clock cycle 500ms signal / 500ms silence + - 100ms, 3 full consecutive signals; Slican NCP and other manufacturers' exchanges)
- automatically after exceeding 3 minutes of call
Opening gate
- Opening gate / wicket from phone - selecting:
- key * - action defined by administrator as "DTMF action" will be performed. Subscriber can open EZ bolt during conversation by selecting the "*" sign from telephone keypad with DTMF dialing (when subscriber presses this key, he can hear tone corresponding to him in doorphone speaker), after releasing button he returns to the further conversation, and EZ bolt remains open for programmed time. CTS phone can be programmed with a button that will open the gate without having to talk [doorphone no. Pause *].
- digit 1 - EZ relay will be activated
- digit 2 - STA relay will be activated
- by door open button (POD) or movement detector
- in the RFID version by approach identifier
