In-band DTMF
1. Description
For some telephone lines, it is necessary to announce the start and end of button press recognition; for this, the In-band DTMF component is used.
This component is present in flow types like:
Voice.
The block (Fig.1(1)) is used in space to build the Flow. The settings panel for this component opens (Fig.1(2)) when you click on the block.
DTMF (Dual-Tone Multi-Frequency) is a tone generated by pressing the phone buttons
1.1. In-band DTMF block
The block consists of the following elements:
The name of the component;
In branch — receiving (connecting with the previous block) branch;
Out branch — outgoing (connecting with the following block) branch. When hovering over the Out field, a switch appears. The switch allows this component to be connected to a component that already has a connection.
The presence of an icon indicates that the switch is on, and this component can be connected to a component that already has a connection.
Changing the switch position removes the outgoing branch of this component.
The button deletes the block from the Flow Schema.
1.2. In-band DTMF settings panel
It consists of the following elements:
State;
Break;
Limit;
Add description.
1.2.1. State
When you click on the State field, a drop-down list opens from which you have to select a value. Available value:
start — start of button press recognition;
stop — end of button press recognition.
1.2.2. Break
1.2.3. Limit
Fig. 2. Setting a limit
1.2.4. Add description
Fig. 3. Add description
- 1 1. Description
- 1.1 1.1. In-band DTMF block
- 1.2 1.2. In-band DTMF settings panel
- 1.2.1 1.2.1. State
- 1.2.2 1.2.2. Break
- 1.2.3 1.2.3. Limit
- 1.2.4 1.2.4. Add description