First, a workplace has to be set up at EIB controller\Telephone operation.
The created workplace must still be assigned a name and phone number. The HS/FS answers every call with this number. In the Voice message/DTMF tab, voice support is also activated and the target number specified (the number under which the HS/FS can be reached). As voice message, a welcome message as well as a voice message for the submenu and the command execution have to be created, which simultaneously inform the caller about the valid options.

Sample voice message: "Welcome to the house, 1 for living room, 2 for outside area"
The pause here is 2 sec., the voice message duration 30 sec.. The pause defines the time between 2 voice messages. The voice message duration defines for how long the respective voice message should be played.
The HS/FS behaves as follows:
Voice message played -> 2 sec. Pause -> voice message played again...
This procedure lasts for 30 seconds. Afterwards, the HS/FS breaks the connection if no button has been actuated.

A communication object is required in order to be able to evaluate the button codes of the caller, in which the status code of the respectively pressed button is written by the HS/FS. The communication object must be of the type 8-bit (0..255/EIS 2,6), and assigned in the current tab of the DTMF object.

The voice message is dynamically changed via the voice message object (communication object of the type 14-byte text), For this, the communication object must be written with a valid voice message key. In this example, this task is done by the nodes DTMF_Menustructure and DTMF_Trigger.

In order to now correctly interpret the entries of the caller, the logic must be correspondingly created. 3 work sheets are required in this example for this:

The input box of the work sheet Main menu contains the DTMF object. DTMF_Menustructure is first required as the only module. The DTMF object of the input box is linked with the input E1 DTMF of the module. Entry E2 voice message is permanently assigned (double-click on the entry) with the voice message key of the welcome message created above. When initialising this module, this voice message key is sent to output A10 voice message. The inputs E3 A1, as well as E4 A2, are also permanently assigned a 1.
The 1 is necessary to inform the module that it should evaluate the numbers 1 and 2 (=> A1 and A2). All other DTMF numbers are ignored (for further information see documentation of the logic node).
Regardless of which button you now press (only button 1 and button 2, as well as the return button 0 are considered), the respective output is activated (A1 or A2 of restart the module). The return button 0 is permanently specified by the DTMF modules and cannot be varied.
The voice message object now still has to be transferred in order to output it when receiving a value at input E1 DTMF or during module initialisation. For this, output A10 voice message has to be connected with the previously created voice message object. If a telegram is now received at input E1 DTMF, or if the module is initialised, the value of input E2 voice message is now transferred to output A10 voice message, and therefore occupies the voice message communication object. This, in turn, triggers the language output with the message of the occupying Voice message key.
Output A1 1 is now connected with the connector of the work sheet of the Living room submenu. Output A2 2 is correspondingly connected with the connector of the work sheet Outside area submenu.

First, a DTMF_Trigger module has to be created on the work sheet for the Outside area submenu. Input E2 voice message of the new module is again permanently occupied with a valid voice message key (that of the outer area submenu). In addition, input E3 voice message confirmation is permanently occupied with a valid voice message key for the voice message of the confirmation request. In order to activate the confirmation, the input E4 confirmation is permanently assigned a 1.