• Aastra SIP 53i IP Phone User Guide – explains the most commonly used features and functions. This guide can be downloaded from www.aastra.com. • Aastra SIP 53i, 55i, 57i, 57i CT IP Phone Administration Guide – explains how to set the 53i phone up on the network and contains advanced configuration instructions for the 53i.

Page 1 53i, 55i, 57i, 57i C 53i, 55i, 57i, 57i CT SI SIP I IP PHONE PHONE 41-001160-00 Rev 04 Administrator Guide Release 2.1...; Page 2 Aastra Telecom will not accept liability for any damages and/or long distance charges, which result from unauthorized and/or unlawful use. While every effort has been made to ensure accuracy, Aastra Telecom will not be liable for technical or editorial errors ...

The 53i from Aastra offers powerful features and flexibility in a standards based, carrier-grade basic level IP telephone. With a sleek and elegant design and 3 line LCD display, the 53i is fully interoperable with the 3CX IP PBX platform, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously.

Summary of Contents for Aastra 53I Page 1 Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously. Part of the Aastra 5i Series of IP telephones, the 53i is ideally suited …

The Aastra 53i IP phone supports up to 3 line keys. Handsfree key - Activates Handsfree for making and receiving calls without lifting the handset. Page 12 Note: For more information about programming keys 3, 4, and 5 to perform specific functions, see the Aastra Model 53i User Guide. *See the Aastra 53i User Guide for more information about ...

This document provides release content information on the Aastra 53i, 55i, 57i, and 57i CT SIP IP phone firmware. Model Release Name Release Version Release Filename Release Date. 53i Generic SIP 2.1 FC-001086-00-04 July 2007. 55i Generic SIP 2.1 FC-001087-00-04 July 2007.

Download manual for Aastra Telecom 53I, 57I CT, 55I. Learn more about Step Action Click on Advanced Settings-Firmware Update. ... 57i, and 57i CT 536M Expansion Module Model 53i IP Phone 53i Phone Features Keys Key Description 53i Key Descriptions Directory Model 55i IP Phone 55i Phone Features 55i Key Descriptions Icom Dial Model 57i and 57i ...

View online(102 pages) or download PDF(7.86 MB) Aastra 53I User guide • 53I IP phones pdf manual download and more Aastra online manuals

The Aastra 53i IP phone supports up to 3 line keys. Handsfree key - Activates Handsfree for making and receiving calls without lifting the handset. When the audio mode option is set, this key is used to switch between a headset and the handsfree speakerphone. Page 23 Note: The above programmable keys can be changed to perform other specific ...