User`s guide

1(3)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
97-10-31 B
267/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
SEA/TB/MP T.Preißner
SEA/TB/MP ASB 150 02
SEA/TB/XE
INTRUSION
Definition
Intrusion denotes the possibility for an extension or
OPERATOR who encounters busy, via a procedure, to
intrude on the busy connection.
Use
The function is valuable for those who extend incoming
external traffic.
The function gives the person extending the call the
possibility to announce an important incoming call to a
busy extension.
Operation
All telephones
To initiate intrusion
When busy is encountered, one dials the digit for the
intrusion facility (normally "8") or a programmed name
selection key.
On the EXECUTIVE Telephone the user may press
menu key intrusion.
If the prerequisites for intrusion are complied with, the
intruder will join the ongoing call as third party.
On a telephone with display, this will show:
EXECUTIVE Telephone
STANDARD Telephone
All parties hear warning tone throughout the intrusion
(connection) phase.
NOTE: Intrusion can be prevented even if the
menu text is shown, due to categorisation
or because the traffic situation does not
permit intrusion.
If the extension is not authorized to effect intrusion the
key depression will be ignored and the extension user
will continue to receive busy tone.
To end intrusion
When an intrusion ends, the seized speech paths are
released via the conference circuit and the remaining
parties continue their conversation via a normal
speech (voice) channel.
Three cases are possible:
1 Intruder leaves call.
Original conversation parties revert to
normal two party call.
Warning tone ceases.
2 Third party leaves call.
Intruder and called party remain in normal
call.
Warning tone ceases.
3 Called party leaves call.
Third party receives termination message.
Called party is called by intruder as for
normal internal call.
Intruder hears ring control tone.
10 Jul 14:40 +15˚
JOHNSON ANDREW 202 BUSY
call-back camp-on intrusion
10 Jul 14:40 +15˚
JOHNSON ANDREW 203 SPEECH
10 Jul 14:40 +15˚
JOHNSON A 203 S
267.fm
Database reference