User`s guide

2(9)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 D
164/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
Operation
After the external caller has dialled the DISA-directory
number he receives back a voice prompt from the
system. Via DTMF tones he has to enter his extension
number. The access to the feature is only allowed if
following items apply:
• definition of a namestring for the DISA extension
in the internal directory book
• valid ACOS
• valid authorisation code (0000 is not allowed)
If all inputs are fullfilled, the external caller gets
all the services related to his extension number in
order to build up external calls. (Traffic group, TCD and
Common abbreviated number COS.) Before the caller
gets the internal dial tone to dial the desired external
number, he gets a voice prompt to classify, if the call
should be marked by an account code or not.
The external caller is then allowed to select a trunk
route, which is defined in his Traffic group, to dial an
external number, which is open in his TCD or dial a
common abbreviated number, which is defined in the
Common abbreviated number COS.
The cost of the call will be transferred to the
individual extension position.
In any situation where the external caller has been
prompted by the voice announcements and the caller
does not act within the registered timeout interval
(4 seconds) the caller will receive the last voice
anouncement again. If the caller does not act in the
second try, he will be rerouted to a programmable exit-
position (e.g. operator). If no exit position is defined the
external caller will be routed to the reroute position of
the relevant trunk.
An external caller who knows the procedure does not
have to wait until all the voice prompts have been sent.
The caller may enter further digits also during the voice
prompts, which then will be disconnected immediately.
For people who often use the DISA function, there is
no need to go through all voice prompts. In that case it
is possible to dial all digits at once. If wrong digits are
included in the string, digits are missing or there is a
break in the digit string - longer then registered timeout
- the external caller is routed back to the voice
prompts. In that case all further digits of the digit string
are ignored.
The DISA directory number is accessible externally for
all members in the ASB15002 system - having a name
defined within the interal directory book - independent
of whether the system is configured as a multi-tenant
system or not. To prevent a misuse of the DISA system
in a multi tenant configuration, the caller is only
allowed to use trunk lines related to his traffic group.
On the next page there is a diagram, which shows how
DISA works with Password Control.
Delayed Automatic Answer for the DISA-function
see DELAYED AUTOMATIC ANSWER,
document 160/155 34-ASB 150 02 Uen.