Version 6.4 19 March 2012
SIP User's Manual 1. Overview
Analog: The device's analog interface supports up to 24 analog ports (four ports per
analog module) in various Foreign Exchange Office (FXO) or Foreign Exchange
Station (FXS) configurations, supporting up to 24 simultaneous VoIP calls. The device
supports up to six analog modules, each module providing four analog RJ-11 ports.
The FXO module can be used to connect analog lines of an enterprise's PBX or the
PSTN to the IP network. The FXS module can be used to connect legacy telephones,
fax machines, and modems to the IP network. Optionally, the FXS module can be
connected to the external trunk lines of a PBX. When deployed with a combination of
FXO and FXS modules, the device can be used as a PBX for Small Office Home
Office (SOHO) users, and businesses not equipped with a PBX.
Media Processing Module (MPM): The MPM module provides IP media channels for
conferencing and media server functionality. The device can house up to three MPM
modules.
The device has enhanced hardware and software capabilities to ease its installation and to
maintain voice quality. If the measured voice quality falls beneath a pre-configured value,
or the path to the destination is disconnected, the device assures voice connectivity by
'falling' back to the PSTN. In the event of network problems or power failures, calls can be
routed back to the PSTN without requiring routing modifications in the PBX. Further
reliability is provided by dual Ethernet ports and an optional dual AC power supply.
The device supports various ISDN PRI protocols such as EuroISDN, North American NI2,
Lucent™ 4/5ESS, Nortel™ DMS-100 and others. It also supports various ISDN BRI
protocols such as ETSI 5ESS and QSIG over BRI. In addition, it supports different variants
of CAS protocols for E1 and T1 spans, including MFC R2, E&M immediate start, E&M
delay dial / start, loop start and ground start.
The device provides a variety of management and provisioning tools, including an HTTP-
based embedded Web server, Telnet, Element Management System (EMS), and Simple
Network Management Protocol (SNMP). The user-friendly, Web interface provides remote
configuration using a Web browser (such as Microsoft™ Internet Explorer™).
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