AASTRA 7446ip (5446ip) for MD Evolution User Guide EN - Manual (Page 82)

Dialog 5446 IP Premium
12.6 Mobile Extension Service
If you frequently travel outside the office, you will generally have a GSM mobile
phone in addition to your Dialog 5446 extension.
Once again, without truly being a group service, the Mobile Extension service
may be of use to you. Its purpose is to allow external users of GSM mobile
phones most particularly to access your company’s network, and thus be able
to use the system as if they were internal users.
In practice, a Mobile Extension terminal is managed in the same way as a
dummy internal user associated with the external GSM mobile number.
To process these calls, the GSM mobile telephone connects to a specific DID
number for the facility, which accesses the Mobile Extension server.
By connecting through the public ISDN network, the GSM mobile telephone
is then automatically authenticated by its external calling number. By default,
authentication can be carried out by manually dialling the dummy internal
number associated as well as the corresponding user’s password.
Once authenticated, the GSM mobile telephone user may call any internal
or external number, just as if he/she were dialling from the internal dummy
extension. The user’s identity that is transmitted to the called parties is the
information for the internal dummy extension.
The mobile GSM telephone user may, in the same way, gain access to all
telephone services to which the internal dummy extension has authorization to
access.
The GSM mobile telephone may also be directly called through the number
associated with the internal dummy extension. This may be used in conjunction
with a personal group. However, the GSM mobile telephone will still retain its
regular number.
Note: The Mobile Extension service is also totally applicable to your residential
extension connected to the pubic ISDN network. Whenever necessary,
contact your system administrator for more information concerning the
availability of this specific service for your telephone facility.
76 7/1553-DBC 446 01 Uen B4 2008-09-16