Ddi-Specific Signalling; Mulap Group - Siemens Hicom 100 E Service Manual

Features
Description of feature update in SW 2.1
The feature is only supported for Symphony B and D terminals since these are the only models
with programmable keys. In the case of normal telephones, EntryPhones and S
feature is only available via the procedure, which can be saved, if necessary, by programming
one of the terminal-specific keys.
The feature does not depend on point-to-point or point-to-multipoint mode. Nor is it dependent
on the QSIG, CorNet and DSS1 protocols.
If, on the other hand, the user dials a line or route code, activates a line or route key for trunk
access or dials a prime line, the DDI assigned to the extension in question is entered as the
calling party number.
4.20.1.2

DDI-specific signalling

Different ring types must be programmed for destination extensions or groups reached under
a specific DDI in order to generate an acoustic signal identifying the number dialled by the call-
ing party in the case of an incoming external call.
When an external call is received, the acoustic signal entered for the destination extension of
the call is applied. If an extension is called using its own DDI number, the external ring type
entered for the extension is applicable. If the extension belongs to a group and the group is
called with its DDI number, the group's external ring type is activated.
The external ring type entered for the destination extension is also acoustically applied to ex-
tensions which receive an external call via an answer group, call diversion or call forwarding.
The DDI-specific visual signal is provided by the LED assigned to the MUSAP key. In order to
use this feature, MUSAP keys must be programmed at this terminal. The LED is thus activated
in the same way as the call keys. The associated LED is activated only for terminals with an
incoming call, with a call in progress or with an outgoing call, i.e. the MUSAP somehow applies
to the current status.
The feature is only supported for Symphony B, D terminals, EntryPhones and normal tele-
phones. DDI-specific acoustic signalling is not possible at S
4.20.1.3

MULAP group

A group can be identified as a normal or a MULAP group in the customer database. A MULAP
group is characterised by the fact that the group members are not contactable for incoming calls
under the group extension number if one group member is busy. Terminals belonging to a MU-
LAP group can set up outgoing connections, however.
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Hicom 100 E Version 2.1, Service manual
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