0 . M A I N T En A N C E; 1 . S E C T I O N F O R A D Va N C E D U S E R S; Automatic Multiple Number Dialling - 2N Helios User And Service Manual

10. Maintenance
Cleaning
If used frequently, Helios, especially the keypad, gets dirty. To clean it, use a piece of
soft cloth moistened with clean water. We recommend you to obey the following
principles while cleaning:
• Never use aggressive detergents (such as abrasives or strong disinfectants);
• Clean the device in dry weather in order to make waste water evaporate quickly.
Label Replacement, Programming Status Changes
For necessary steps refer to the preceding subsections. Keep the following for later changes:
• this manual;
• the completed programming form (including a copy);
• unused transparent foil strips for button labels.
Always use the product for the purpose it was designed and manufactured for, in compliance
herewith.
The manufacturer reserves the right to modify the product in order to improve its qualities.
2N Helios contains no environmentally harmful components. When the product's service life
is exhausted and you would like to dispose of it please do so in accordance with applicable
legal regulations.
11. Section for Advanced Users

Automatic Multiple Number Dialling

11.1.
When you press a Helios button, you may find out that the called line is busy or
the called party is absent. Helios is able to identify these situations and solve them by
Automatic Multiple Number Dialling if one of three automatic dialling modes is enabled.
Up to 6 numbers can be stored for each button.
The three automatic modes (see below) recognise the continuous, busy and
ringing tones, In all of these modes, automatic dialling can be disabled or the required
count of cycles can be preset (1 to 9; if none of the stored numbers is answered, the
whole cycle is repeated starting with the first number again) for each button separately.
You can program Automatic Multiple Number Dialling for selected buttons only,
retaining the others in the default mode, the selection of one of three automatic dialling
modes is common.
Automatic Multiple Number Dialling without Confirmation
This mode can be used in common cases to enable the visitor to get through
even if the called line is busy or the called subscriber is absent. Hence, the second
memory of the button may include the secretary's number, the third memory the porter's
lodge number, etc.
This mode recognises the ringing tone and if the tone ends before the predefined
count of rings, Helios regards this as a successful connection, this solution is not fully
reliable because detection may be hindered by noise, etc.
No message is played back in this mode.
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