The Aastra 5370 is an all-round model with an advanced range of features. Via its "attention" LED, users are informed of newly received text & voice messages even if they have chosen to reduce the ringing volume. When used together with a headset, the Aastra 5370 is also optimally designed for heavy telephone users, such as call center agents. Being based on the DHSG standard, the headset can be used to control the volume, as well as to accept & clear down calls.