4.1 Function Description

Outgoing Call

Press the ALARM button to activate 2N^® Lift1. 2N^® Lift1 seizes ("picks up") the line and sets up connection with the continuously working personnel or the control centre (refer to Automatic Dialling for details). During the call setup, the person in the lift can hear the dialtone, dialling, ringback tone and "Wait please, connection is being made" or any other announcement if available. The announcement can also include
the 2N^® Lift1 identifying data (address, lift number, etc.). When the operation staff receives the call, the parties can start speaking.

Check Call

A check call is an automatically made outgoing call whose purpose is to check the function of the 2N^® Lift1 system. Unlike common outgoing calls, check calls have different announcements ("Check call") and use different phone number sets.

Typically, check calls are received automatically if the control centre is equipped with the 2N^® Lift8 software. All you need to operate the program is a standard PC with a VoIP account.

Incoming Call

The control centre can also call the 2N^® Lift1 number. 2N^® Lift1 automatically answers the line after two rings (or as configured) and sends a sound signal. The purpose is to provide the person trapped in the lift with necessary information (about rescue, for example) and check remotely whether 2N^® Lift1 is connected and works properly.

Useless Startup Protection

As the only purpose of 2N^® Lift1 is to call help in case of emergency, any call made when the door is open is considered useless. Hence, connect the door contact if available to the 2N^® Lift1 CANCEL input and program a connection establishing delay after ALARM pressing. In this case, if the ALARM button is pressed by mistake, the lift arrives in the next floor and the door opens thus cancelling the call. Or, you can set the minimum button pressing time to prevent unintentional ALARM pressing. 

1 and 2. Loud/Silent automatic Dialling of Multiple Numbers with Confirmation

You can save up to 6 phone numbers and a defined count of redialling attempts for the ALARM button in the 2N^® Lift1 memory. 2N^® Lift1 then tries to call the listed numbers using tone dialling (DTMF) as the most reliable confirmation criterion. The dispatcher presses  on its phone (DTMF). If the called number is busy or unanswered within a timeout or for other reasons (see the table), 2N^® Lift1 tries to call the next number(s) in the sequence until exhausting the defined count of cycles. If the count is 0, automatic dialling is disabled and 2N^® Lift1 call one number only.

In this mode, 2N^® Lift1 repeats the "Wait please" announcement (or any other user message) after redialling as many times as specified. Press  or  (call confirmation) to mute the announcement.

Evaluation of Loud Automatic Dialling with Confirmation

3. Loud Automatic Dialling of Multiple Numbers without Confirmation

This mode is useful where no trained personnel are available because the called person does not have to press any button. The two modes share a set of numbers, count of cycles, response to the busy tone, e.g., and so on. The difference is that the no-confirmation mode recognises the ringing tone and if the tone ends before the preset count of rings is exhausted, it means that the called user is off-hook and this is considered a successful connection.

Evaluation of Loud Automatic Dialling without Confirmation

4 and 5. CPC (Antenna and KONE)

Used wherever the counterparty is equipped with the required SW. When the line is answered, a DTMF string is sent and the lift is identified. The call is either switched to voice communication (alarm call) or confirmed automatically and terminated (check call), as the case may be.

6. P100

Used wherever the counterparty is equipped with the required SW. When the line is answered, a DTMF character is sent and the lift is identified. The call is either switched to voice communication (alarm call) or confirmed automatically and terminated (check call), as the case may be.

Call End (Outgoing/Incoming)

The call end (line hang-up) occurs whenever any of the below listed situations happens:

• The busy or continuous tone is detected (PBX call end).
• The maximum call time expires – 2N^® Lift1 plays "Attention, the call is ending" 10 seconds before expiration for you to extend the call if necessary.
• The  or  character is received.
• The time limit expires during programming.
• The count of ringback tone periods exceeds the value set in parameter 954; the dialling attempt is terminated and calling continues according to the automatic dialling parameters.

Rescue Process

Use parameter 966 to activate the rescue process and define the way it shall be terminated (button 2/password/password and button 2). Then use parameter 967 to make 2N^® Lift1 dial the number set in the error call memory (the 2N^® Lift8 server is able to receive such calls via CPC Antenna, CPC KONE or P100) when the rescue process has been terminated.

• To keep the "Establishing connection" pictogram on, use external indication elements with autonomous power supply. 
• The electronic board LED or external LED goes off, because 2N^® Lift1 is line fed (enable the board LED light in parameter 970 – External gateway).
• Set the rescue password (parameter 992) and choose the function mode (parameters 966/968) to activate this function.
• Terminate the rescue process by pressing button 2 or typing the password during an incoming call. Type the rescue password as *password* (like with the switches).

ALARM Button Test

Use parameter 969 to test the ALARM button for jamming (permanent pressing or sticking). The settings options lie in the range between 1 and 9999 seconds. 0 means disabled. If the button is pressed for the preset period of time, 2N^® Lift1 detects a jammed button and sets up a call to the operational call memory number (2N^® Lift8 server receives such calls via CPC Antenna, CPC KONE or P100).