Dtmf Remote Administration And Maintenance Procedure - Siemens Hicom 100 E Service Manual

Administration and maintenance
Teleservice
Caution
!
In general, DTMF remote administration and maintenance can only be performed
between systems with the same software version.
7.9.3.1

DTMF remote administration and maintenance procedure

1. Initiating an external call
This type of remote administration and maintenance can be used for masters and slaves
on analogue lines (SW 2.0.2) and on S
ternal call is first initiated between the service system (master) and the customer system
(slave).
2. Release procedure in the customer system
Passive remote AM mode is activated in the customer system by entering a release proce-
dure. The following restrictions apply to the release procedure for data protection reasons:
The procedure can only be performed from the first 2 stations with display (*992).
The procedure must be jointly released for both stations by entering customer data
(CDM 30 12).
A 6-character password must be entered in the procedure.
The password can be edited using the customer data entry (user data: code 20 for
remote AM).
The slave user can replace the handset after the release procedure without deactivating
the connection between the systems. The slave system then waits for 60 seconds to re-
ceive the cyclical signals emitted by the master. The line is cleared down by the slave sys-
tem if there is no signal from the master during this time.
3. Activation procedure in the service system
Active remote AM mode can be activated in the service system by entering a release pro-
cedure (*991).
This release procedure can be entered from any system telephone with display (max. 3 ex-
tensions simultaneously). In the system administration, the service system must be re-
leased as a master system in remote AM.
After activation of remote AM, the master emits cyclical signals (every 5 seconds) and
waits for the slave to respond. The master exits standby mode when the first acknowledg-
ment is received. The signalling cycle is then increased to 10s intervals and the cyclical
signals are maintained during the entire administration and maintenance procedure. If user
data is transferred, cyclical signalling starts again from the beginning when the transfer has
been completed.
7-46
lines (as of SW 2.1). An incoming or outgoing ex-
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Hicom 100 E Version 2.1, Service manual
A31003-K16-X001-3-7620
,
07/99