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Mitel 673xi & 675xi manual (form. Aastra)
A. Initial Operation
1. Requirements
In order to use this IP telephone with your telephone system you will need a sound
broadband connection.
If you only have a single circuit plug available (e. g. in home offices) but would like to
access the Internet with your laptop while making calls with the telephone, you can
connect the network cable (R145) to your telephone and thanks to the switch integrated
in the telephone, simultaneously connect your laptop directly to the telephone (except
Mitel (Aastra) 6730i).
Since October 1st, 2014 Aastra is renamed Mitel. All Aastra IP telephones were renamed
to Mitel.
The Mitel 6753i is End of Life since July 1st 2015.
2. Adding an extension
All telephones you receive are preconfigured and connected to the telephone system.
B. Notices
1. Encryption
You have the option of voice encrypting (SRTP) your telephone calls. You can activate this function
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Table of Contents
Related Manuals for Mitel Aastra 6755i
Summarization of Contents
Initial Operation
Requirements
Details the prerequisites for using the IP telephone, including a broadband connection.
Adding an Extension
Explains that telephones are preconfigured and connected to the telephone system upon receipt.
Notices
Encryption
Highlights the option to activate voice encrypting (SRTP) for telephone calls.
Call Forwarding
Permanent Call Forwarding
Describes forwarding all incoming calls directly to a predefined telephone number.
Forward if Busy
Explains forwarding new calls during an active call when Call Waiting is deactivated.
Delayed Call Forwarding
Covers forwarding calls if the incoming call is not answered within a set time period.
If Unavailable (Not Registered)
Details call forwarding when the end device is not registered to the telephone system.
Operation
Basic Functions
Details the telephone's basic functions, including an overview of keys and descriptions.
Outgoing Call
Dialing Procedures
Explains how to make internal and external calls, including using the redial and phone book.
Incoming Call Handling
Answering and Toggling
Covers answering calls via receiver or hands-free, and toggling between active and waiting calls.
Call Transfer
Describes how to place calls on hold and transfer them to other extensions or numbers.
Advanced Call Features
Retrieving Voicemail
Guides on accessing and managing voicemail messages, including listening, deleting, and replaying.
3-Way Calls
Explains how to set up and manage three-way conference calls on different phone models.
Call List and Redial
Redialing Calls
Details using the redial key and call list to redial previous numbers.
Using the Call List
Explains how to view and manage missed, incoming, and outgoing calls from the call list.
Completion of Calls on No Reply (CCNR)
Generating and Erasing Callbacks
Describes how CCNR creates callbacks for unreachable parties and how to erase them.
Function Keys and Codes
Programmable Function Keys
Lists functions configurable via the administration portal for programmable keys.
Control Codes
Provides a list of control codes for direct access to telephone system functions.
Keypad Lock and Voicemail
Keypad Lock
Explains how to lock and unlock the telephone keypad to prevent improper use.
Voicemail Setup
Guides on setting up the voicemail box, recording messages, and managing recordings.
IP Address and Support
Finding the IP Address
Details the steps to view the telephone's IP and MAC addresses.
Getting Help and Support
Lists resources for help, including NFON AG contact details and support websites.
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