Aastra Dialog 4425 IP Vision User Manual page 97

Call Forwarding Services
Notes:
When any type of call forward is defined on your extension,
you still have the option of placing calls and activating any
type of service from your extension.
When you have defined any type of call forward to an internal
recipient, the latter has still the option of calling you without
any restrictions.
When a call forward on busy condition is defined on your
extension, no more incoming calls will be presented to you
when you have an ongoing call. In the same way, the services
of consulting and answering a new call are de-activated.
For any call forward defined to be directed to an external
recipient, forwarding of calls issued from external parties
may take place either through your facility's resources or
directly at the Euro-ISDN network level, according to your
facility's configuration.
You may program a call forward from your extension to
itself. This enables you to bypass any fixed call forward that
is applicable to your extension. Your extension is therefore
available normally.
Cumulative call forwards between different users are
authorised.
Your extension may also be subject to call forwarding from
third party sets. Certain extensions (such as yours) may
possibly be equipped with a permanent protection against
receiving call forwards from third party sets. Obviously, this
service will be denied on these extensions (and vice-versa).
MD Evolution – Dialog 4425 IP Vision 97