AASTRA 53i Guía De Instalación

20 Model 57i CT IP Phone Installation Guide

Note: The battery must be charged for a minimum of six hours prior to initial usage 

of the handset.

Belt Clip 

To install the belt clip, snap one arm of the clip into the slot on the side of 
the handset and then slide the other arm into the slot on the other side of 
the handset until it snaps into place.

Using a Headset with your Telephone

The 57i CT cordless handset accepts headsets through the jack on the 
bottom of the handset. Contact your telephone equipment retailer or 
distributor to purchase a compatible headset. Customers should read and 
observe all safety recommendations contained in headset operating guides 
when using any headset.

Battery Status Icons

The display provides “at a glance” information on the handset battery:

Note: The handset is designed to recharge the batteries automatically, when 

required and placed on the charger stand. The battery icon will not flash and 
the handset does not charge every time it is placed on the stand. If a defective 
battery is replaced, then the battery icon is not identified until the new battery 
is charged for at least 2 minutes. 

d

c

b

a

The bars indicate the bat-
tery charge level — 4 for 
full, needs recharging 
when only 1 bar appears.

f

The bars will flash when 
the battery is being 
recharged on the charger 
stand.

Handset

(face down)