4610 and 5610 User Guide Page 35
IP Office 3.2 [15-601080] Issue [3] (5 June 2006)
System Features

Introduction

As well as your phones specific features, you can access a number of system features by dialling short
codes.
These instructions are for the system's default configuration. They assume that you are using the default
feature codes. It also assumes that you have full access to all features and the public phone network.

Making Calls

To make internal calls:
If your system administrator has allocated you the Ring Back When Free feature (see RBak+ - Ringback
When Free) under a dial pad digit, you can:
1. When you call an extension that does not answer or is busy, press RBak to set a callback on
that extension.
2. When the extension you called becomes free, your phone will ring (a burst of three rings). Lift the
handset and the extension is called automatically.
3. Lift the handset and the extension is called automatically.
To make external calls:
Either:
Dial the number (prefixed by the access code if required).
or
Use a speed dial code (contact your system administrator for a list of your speed codes).
If you hear busy tone while dialling, then the call may be barred. Your system administrator can bar
certain calls, such as those to premium rate numbers and international calls.