The Aastra 9133i phone is a sturdy mid-range phone. It has 3 lines by default, which makes it ideal for both the office environment or and the home worker. There are 7 programmable keys which can be programmed to provide further lines or as speed dial keys.

Unlike some phones, this phone does not have a lightweight plastic feel to it. The phone is very sturdy and stays put on the desk. Any worries I had that I would need to mount the phone on the wall proved to be groundless. The handset has a nice solid feel to it and sits comfortably in the hand. The three-line LCD is easy to read and can be angled for easy viewing, although the ability to dim the display would be nice.

(Source) VoIP User