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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
