4.1 Function Description

Purpose of Section

The purpose of this subsection is to facilitate troubleshooting. If the system does not work correctly and a well-trained technician can monitor its activities as instructed herein, discrepancies can be found easily. The technician can describe the discrepancy and substantially accelerate troubleshooting. This approach often reveals that the system works correctly but the user’s expectations were rather different.

Outgoing Call

Press the ALARM button on the audio unit to start the process (use the CANCEL input to delay or block the call, refer to parameter 914). 2N® LiftIP sets up a call with the control centre (see Automatic Dialling for details). 2N® LiftIP plays "Wait please, connection is being made" to the person in the lift and “Press 1 for confirmation” to the control centre (if DTMF 1 confirmation is enabled). Be sure to confirm the call manually or automatically. The call is time limited (“Attention, the call is ending”), but can be extended. Refer to Control Centre Instructions for DTMF control details.

Check Call

A check call is an automatically made outgoing call (typically once in 3 days) whose purpose is to check the function of the 2N® LiftIP system. Unlike common outgoing calls, check calls use different announcements (“Check call") and different phone number sets (refer to Subs. 3.2 Table of Parameters). 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.


  • If the lift ID is also evaluated during the check call transmission, enter parameter 974 (for the CPC and P100 protocols).
  • If the check call memory set is completely empty, the first ALARM memory set is used.


  • If you use CPC or P100, remember to set the check call number that routes the call to the 2N® Lift8 server. With the fall to sets 011–016, the call may not be confirmed and evaluated properly.


  • A check call can be activated manually via parameter 811. The regular check call timing is not affected.

Operational Call

The operational call is an automatic call trigged by an event (Button stuck, Rescue end, Audio error). Set the operational call via the Service Tool Configuration – Events menu. Refer to Subs. 5.3 for details.

Operational calls can be set up via the CPC/P100 protocol only (OK operational calls via CPC 2N ext/P100 2N ext only).



  • Remember to set the check call number that routes the call to the 2N® Lift8 server. With the fall to sets 011–016, the call may not be confirmed and evaluated properly.


  • For operational calls, select the CPC Antenna 2N ext, CPC KONE 2N ext and P100 2N ext protocols to enable OK status transmissions too (Button fixed, Audio fixed). The protocols that lack 2N Ext cannot be used for operational call setups.

Incoming Call

The control centre can also call the 2N® LiftIP number. 2N® LiftIP automatically answers every incoming call, identifies itself and lets you select another function via a voice menu (DISA). You can call an audio unit or enter the programming menu, for example. Like outgoing calls, incoming calls are time limited and equally controlled (extended, terminated).

Incoming calls provide the person trapped in the lift with necessary information (about rescue, e.g.) and check remotely whether 2N® LiftIP is connected and works properly.

Welcome, this is communicator .....
Press 0 for connection with the audio unit
Press 9 for administration
  • Press 1 to enter the programming menu
  • Press 2 to terminate the rescue process
  • Press 3 for information on this communicator
  • Pres # to return to the main menu
Press # to terminate the call

 Automatic Check Call Answering

A control centre with a PC equipped with the 2N Lift8 server answers and processes check calls automatically. Configure the server via the 2N Lift8 Control Panel. 


  • If the check call number is not completed (071–076), the call is set up to the numbers in memories 011–016. We recommend you to set the check call receiving number. If CPC/P100 were used and the call were directed to 2N® Lift8 Communicator, the call would not be evaluated correctly.
  • The operational call can only be set up via CPC or P100. If the number is not completed in memories 081–086, the call falls to the alarm numbers if the CPC/P100 confirmation code is used. 2N® Lift8 Communicator cannot evaluate such calls.


  • If the check call number is not completed, the call falls to the alarm numbers but may not be confirmed and evaluated correctly.
  • If the operational call number is not completed, the call going to 2N® Lift8 Communicator will be evaluated as an alarm call. Thus, be sure to set the number that routes the call to the 2N® Lift8 server for proper evaluation and display in the 2N® Lift8 Control Panel.


  • Make sure that the alarm call number and check and operational call numbers are different.

Useless Startup Protection

As the only purpose of 2N® LiftIP 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® LiftIP CANCEL input and program a connection establishing delay for 2N® LiftIP 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.

Call End (Outgoing/Incoming)

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

  • the counterparty (control centre) hangs up;
  • the maximum call time expires – 2N® LiftIP 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.