Description Of Feature Update In Sw 2.1; Msn Feature; Specific Seizure With Existing Ddi Number - Siemens Hicom 100 E Service Manual

4.20

Description of feature update in SW 2.1

4.20.1

MSN feature

With a system using ISDN2 trunks supporting MSN (Multi-Subscriber Numbering) or DDI (Di-
rect Dial In) it is possible for a user to seize one of these numbers for an outgoing call. The MSN/
DDI number seized will be passed to the Network and then the called party by means of ISDN
CLIP (Calling Line Identification Presentation). This assumens that the called party has the
ability to display CLIP.
A soft key may be programmed with this feature on Optiset telephones. This allows ease of sei-
zure of that MSN/DDI for an outgoing call and also a visual indication if that number has been
dialled for an incoming calls. A total of six MULAP keys may be programmed at each extension.
This feature is only supported for use with Optiset telephones with programmable soft keys. En-
try phones, analogue telephones and S
ture.
The functionality of this MSN feature corresponds to that of a MULAP (Multiple Line Appear-
ance) on the Hicom 150E. It also has the added advantage of supporting more than one simul-
taneous incoming call under the same MSN/DDI.
A different ringtone may be assigned for calls to the MULAP group to differentiate between a
MULAP call and an incoming direct DDI call to that extension.
This feature is not dependant on the type of ISDN protocol used.
4.20.1.1

Specific seizure with existing DDI number

An existing DDI number can be specifically seized for outgoing calls by implementing the ap-
propriate procedure or programming a MUSAP key. An existing DDI number is assigned to this
key.
Seizure does not take place, however, when this key is pressed. The route, line or prime line
must be subsequently dialled for this purpose. The specific DDI of the key pressed is trans-
ferred to the destination of the call.
The MUSAP key acts as a call key in the case of incoming calls. Similar to line, call and DSS
keys, the LED is activated in accordance with the status of the line or user task assigned to the
key. Features such as shuttle, consultation, etc. are possible.
In the case of outgoing connections, this key only acts as a call key following external seizure.
Up to six MUSAP keys can be programmed (same field as that used to program call keys). Si-
multaneous programming of call and MUSAP keys is restricted accordingly.
A total number of six call and MUSAP keys can be programmed.
When using an existing DDI number for specific seizure, the procedure must first be called up
by entering the appropriate code. The DDI number is then dialled before selecting the required
call number.
A31003-K16-X001-3-7620, 07/99
Hicom 100 E Version 2.1, Service manual
Description of feature update in SW 2.1
terminals can not be used in conjunction with this fea-
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Features
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