Xerox 3100MFPX 3100 MFP Guide to Faxing over IP Networks - Page 1

Xerox Multifunction Devices Customer Tips dc09cc0449 April 20th, 2009 This document applies to the Xerox products indicated in the table below. For some products, it is assumed that your device is equipped with the appropriate option to support this document. x Phaser 3100MFP ...for the user A Guide to Faxing Over IP Networks - Phaser 3100MFP Overview This guide is intended for network administrators, or service providers, with responsibility for configuring settings within an IP network expected to provide telephony service to a Xerox fax device. The Phaser 3100MFP fax feature is capable of standard G3 fax operation (maximum data rate 14400 bps) or Super G3 fax (maximum data rate 33600 bps). It is designed to connect to analogue telephone lines that carry audible frequencies (i.e. speech). Fax data is converted into audible signals for transmission through the Public switched telephone network using a modem. Digital FAX DATA Analogue Modulation What is Voice over IP (VoIP)? Internet Protocol (IP) networks carry data in a digital packet format. Voice signals must be encoded into this digital format before being transmitted over IP. This encoding also compresses the data to reduce the load Analogue VOICE (bandwidth) on the network. This function is provided by an access device that supplies the conversion interface - see Network Setups Digitizing Codec (page 4). What is Fax over VOIP (FoVoIP)? The fax is connected to the VoIP interface on the network and is treated like a standard voice call. The analogue fax signals are encoded into a digital format, just as for a voice call. The voice encoding compression severely limits the fax speed, and network quality issues that are acceptable to voice calls usually cause the fax to fail - see Digital FAX DATA Quality of Service (page 2). Analogue Modulation FoVoIP is often called Fax Pass-through. Digitizing Codec dc09cc0449 Customer Support Page 1