User`s guide

5(44)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 G
268/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
1913
B-channel selection mode
This command states the rules for seizure of a B-
channel for outgoing calls and defines whether there
shall be a relation or no relation between the B-
channels and the individual trunk number.
Valid data: No local channel selection
Preferred selection
Exclusive selection
- linked to trunk individual
Exclusive selection
Default data for BTUD is:
Preferred selection
Default data for BTUB/MFU is:
No local channel selection
No local channel selection
BTU-D/BTU-B_/MFU leaves it to the
opposite side to select a B-channel.
There is no relation between the
individual trunk number and the
B-channel.
Preferred selection
BTU-D/BTU-B_/MFU informs the
opposite side which B-channel to use,
it accepts, however, also another
B-channel proposed by the opposite side.
There is no relation between individual
trunk number and B-channel.
Exclusive selection
- linked to trunk individual
BTU-D/BTU-B_/MFU informs the
opposite side to use a determined
B-channel and does not accept any
other. In this setting, there is a fixed
relation between individual
trunk numbers and B-channel for
incoming and outgoing traffic. In
conjunction with this setting it is possible
to create groups of channels for defined
purpose ( e.g. tenant groups,
ACD group ).
Exclusive B-channel selection
BTU-D/BTU-B_/MFU informs the
opposite side to use a determined
B-channel and does not accept any other.
There is no relation between
individual trunk number and B-channel.
1916
Digit receiving in overlap mode
This command defines how the direct in-dialling digits
are received by the public network.
Valid data: Yes / No
No
No overlap mode ( en-block mode )
All direct in-dialling digits are received
together in the "call setup message " .
Ye s
Overlap mode
Direct in-dialling digits are received in
separate messages.
1919
Assigned TEI value
For addressing purposes each ISDN equipment
connected to an ISDN-link requires a TEI value
( Terminal Endpoint Identifier ).
This TEI value is included in all the messages which
will be sent to the public network or received from the
public network.
How the TEI value is assigned depends on the
network provider, either there will be a fixed stipulation
which TEI value has to be used ( non automatic
assignment ) or the ISDN equipment requests a TEI-
value from the public net ( automatic assignment )
when it is connected to an ISDN-link the first time.
This TEI-value will be stored and used for all further
messages to and from the public network. In the
maintenance part of RASC under menu "SYSTEMS"
and item "LINK SUPERVISOR" you can display the
actual stored TEI value, which in case of non-
automatic assignment will be the same as selected for
command 1919, or in case of automatic assignment, a
value which was assigned by the public network.
The automatically assigned value might change, when
the public net removes the actual TEI value for
undefined reasons and assigns a new one.
Valid data: 00 - 63 for
non automatic assignment
-- for automatic assignment
Default data: -- (undefined)