AASTRA 4422 IP Office for MD Evolution User Guide - Manual (Page 88)

Group Services
MD Evolution – Dialog 4422 IP Office 88
• You have the option of carrying out a simplified call transfer
between extensions within your personal group (other than from
your Dialog 4422 IP Office extension). To do so, simply place
your current call on hold and hang up. The call is then represented
on all of your personal group extensions; therefore you may pick
it up on any of them.
Notes:
It is your system administrator’s responsibility to define your
personal group. Contact him/her as needed.
On an associated digital Dialog 4200 extension, a call is
placed on hold by pressing the line key associated with the
current call. On an associated DECT cordless extension, a
call is placed on hold by pressing the “R” key.
Mobile Extension Service
If you frequently travel outside the office, you will generally have a
GSM mobile phone in addition to your Dialog 4422 IP Office 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.