AASTRA 7434ip User Guide EN - Manual (Page 45)

IP P HONE FOR MX-ONE™
45 6/1553-DBC 434 01 Uen D 2012-02-22
5 Outgoing Calls
This chapter describes how to make outgoing calls, and lists the options
available to you when you receive a busy tone or no answer.
5.1 Making Calls
You can call both internal and external numbers from your phone. To dial
an external number, you must first enter the external access code.
Note: The external access code is one or more digits used in your office
to get a line for external calls, for example 0 or 00.
To make a call, do the following:
1) Lift the handset and wait for a dial tone.
2) Dial the number.
• For internal calls, dial the extension.
• For external calls, enter the external access code and dial the
external number.
It is possible to use short numbers for numbers that you call often, 5.5
Speed Dialing on page 51.
5.2 When You Receive a Busy Tone or No
Answer
If you call an internal number and you receive a busy tone or get no
answer, or if all external lines are busy, you can either try again later, or
order automatic callback, call waiting, or intrusion.
5.2.1 Callback
When you order callback for a busy extension, you will be called back as
soon as the extension or line becomes free. If you order callback when
there is no answer, you will be called back when the extension has been
used the next time.
Note: When you return to the office, you can tell the system that you are
present by lifting the handset and immediately replacing it.
You can order automatic callback in the following cases: