AASTRA 53i ip phone 매뉴얼

Model 53i IP Phone User Guide

Introduction

This 53i IP telephone has all the features of a regular business phone, allowing you to 
make and receive calls, transfer, conference and more. The 53i IP telephone provides 
communications over an IP Network using the SIP IP telephony protocol. 

Phone Features

• 3-line LCD screen
• 6 top keys: 4 are programmable keys
• 3 call appearance lines with LEDs
• Supports up to 9 call lines
• Full-duplex speakerphone for handsfree calls
• Headset support (modular connector)
• Built-in two-port, 10/100 Ethernet switch - lets you share a connection with 

your computer

• Inline power support (based on 802.3af standard) which eliminates power 

adapters. 

• AC power adapter (included)
• Enhanced busy lamp fields*
• Set paging*

*Availability of feature dependant on your phone system or service provider.

Requirements

The 53i IP Phone requires the following environment:

• SIP-based IP PBX system or network installed and running with a SIP 

account created for the 53i IP phone.

• Access to a Trivial File Transfer Protocol (TFTP), File Transfer Protocol 

(FTP), Hypertext Transfer Protocol (HTTP) server, or HyperText Transfer 
Protocol over Secure Sockets Layer (SSL) (HTTPS).

• Ethernet/Fast Ethernet LAN (10/100 Mb)
• Category 5/5e straight through cabling
• Power source

- For Ethernet networks that supply in-line power to the phone (IEEE 802.3af):

- For power, use the Ethernet cable (supplied) to connect from the phone 

directly to the network for power. (No 48v AC power adapter required.)

- For Ethernet networks that DO NOT supply power to the phone:

- For power, use the 48V AC Power Adapter (included) to connect from 

the DC power port on the phone to a power source.

or

- (optional) - For power, use a Power over Ethernet (PoE) power injector 

or a PoE switch. A PoE power injector is available as an optional 
accessory from Aastra Telecom. Contact your Administrator for more 
information.