IP PHONE FOR MX-ONE™
3 6/1553-DBC 444 01 Uen B4 2014-03-26
1   Introduction
TRADEMARK
Aastra is a registered trademark of Aastra Technologies Limited. All 
other trademarks herein are the property of their respective owners.
DISCLAIMER
While every effort has been made to ensure accuracy, Aastra will not be 
liable for technical or editorial errors or omissions contained within this 
documentation. The information contained in this documentation is 
subject to change without notice.
1.1  About this User Guide
This user guide describes the available features of the Aastra 7444ip 
phone (also known as DBC 444) when it is connected to MX-ONE.
The user guide is valid for MX-ONE Telephony System – Telephony 
Switch and Telephony Server. Whenever only one system is applicable, 
this is specifically stated in the document.
All the procedures, suffix digits, tone messages and times used in this 
document are according to the standard application system.
Note:  All names and numbers presented in the displays in this user 
guide are examples.
Not all exchanges are equipped with all features. By using service 
profiles, it is possible to vary the number of features assigned to each 
individual extension. This can affect the display information. The person 
or department responsible for telecommunications in your organization, 
will inform you of which features have been assigned to you.