Call in substitution or with signature – AASTRA 4422 IP Office for MD Evolution User Guide User Manual

Page 34

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Operations for Outgoing Calls

MD Evolution – Dialog 4422 IP Office

34

Call in Substitution or with Signature

You can also place an external call in substitution or with signature.

This concerns the exceptional use of a third party set that is NOT

an IP H.323 Dialog 4425 or Dialog 4422, to place an external call,

just as if you were using your own extension.
The main advantage of this feature is that the call is charged to

your own extension. Another advantage is that on the substituted

third party set, you have all of your extension’s customary services,

most especially dialling discriminations relating to various external

numbers applicable for your extension.
This service is valid on a call-by-call basis. It is automatically cancelled

at the end of each call processed using this service.
To activate this substitution procedure from any extension (that is

other than an IP H.323 extension), after lifting the handset:

75

z

Dial the prefix “75”, granting access to the call in substitution
service.

STATION NO

z

Then dial your own extension number.

This is necessary in order to sign on to the third party set.

PASSWORD

z

Next, dial your user password.

By default, your user password is “1234”, however you may have

modified it. See also the “

Programming Your Extension’s Services

section.

d

Hang up in order to terminate access to this service.

You may now proceed with placing your external call in substitution

from the previous extension.
After lifting the handset again:

NO TO CALL

z

Simply dial the desired external number.

You may do so according to any of the methods available on this

extension for dialling an external number. Your call is then

established normally.

Note: The prefix “75” is the one usually used to access the

call in substitution service. It may, however, have been

modified by your system administrator.

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