Aastra Telecom 4223 manual Mobile Extension Service

Group Services

Mobile Extension Service

If you frequently travel outside the office, you will generally have a GSM mobile phone in addition to your Dialog 4223 Professional 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 authorisation 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 admin- istrator for more information concerning the availability of this specific service for your telephone facility.

92 MD Evolution – Dialog 4223 Professional