AASTRA DT590 for MD Evolution User Guide EN - Manual (Page 68)

Call Forwarding Services
MD Evolution – Cordless DT590 198
The number to which a call forward may be directed could be an
internal party's individual extension, a hunt group, another user's
personal group, or even the access number for an integrated voice
mail system that your facility may use. (See section “ Voice Mail
Services ” on page 207).
It may also consist of an external number containing up to 18
digits, including the network access prefix. This may be an external
number that is accessible through abbreviated dialling.
You may use fixed call forward defined by your system
administrator. This may consist of a call forward on no-answer
condition, a call forward on busy condition, or a call forward on no-
answer and busy conditions.
This fixed call forward is applied by default whenever you do not
define a variable call forward for your calls. This is often the case
when your facility uses the integrated voice mail service, which - by
default - receives your calls encountering a no-answer or busy
condition.
You may define all of the types of call forwards listed above, on
your own. This is referred to as a variable call forward that takes
precedence over a possible fixed call forward.
In any case, only one call forward applies at any given moment.
Defining a new variable call forward automatically cancels any
definition that previously existed.
A variable call forward is defined on a case by case basis before
you leave your extension. If you forget to define the call forward,
you may ask the attendants to remotely define it for you. You may
also define your call forward from an internal extension other than
your DT590 that will be the recipient of your call forwards. This is
the “Follow me” service.