User`s guide

6(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
Capacity
The number of external calls served by the DISA-
function depends on the free resources of VMU-HD/
MFU-voice-channels and free DTMF-receivers in the
system. All extensions and the operator can be
programmed to use the DISA-function.
Limitations
• It is only possible to change the authorisation
code internally via telephone.
• Authorisation code 0000 cannot be used for
DISA feature.
• In order to use the DISA function, the user must
have also an assigned name in the internal direc-
tory book beside the correct class of service .
• The DISA function can only be used by external
callers.
• The DISA function can only be used for one ex-
ternal call. If the caller wants to make further
calls he has to go through the whole procedure
again.
• If you want to dial-in to the DISA system via a
stored number including all DISA-Inputs (DISA-
number + Extension number + Authorisation
code + Account code), you have to take care that
the system has enough time to identify all the dif-
ferent parts of the string numbers.
Hint: Insert "wait-digits" in the stored string.
You should enter 2 "wait-digits" at least
after each number.
• The caller’s telephone must be equipped to send
DTMF tones.
• When using Line Signals (command 1201)
06 ( Australia, standard ) or
21 (Standard with detection of disconn. tone )
the maximum time the caller is connected to the
desired party is 10 minutes.