ASCOM Eurit 22 Operating Manual page 23

Dialling
Detailed information about speed dialling is given in the section " Speed dialling 'I.
You can combine several abbreviated numbers or abbreviated numbers and numbers
from the directory This procedure can, for example, be used for provider selection
(Call by Call).
initiate speed dialling (i.e. press @ and the relevant
speed-dialling key).
The (preprogrammed) number is displayed.
Lift the handset or press @I and the number will be
dialled.
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