Basic Functions; Supported Features - Juniper SRX210 - HARDWARE GUIDE REV 3 Hardware Manual

SRX210 Services Gateway Hardware Guide

Basic Functions

Supported Features

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The availability of hardware and software for voice and data transmission on the same
device is called integrated convergence services.
The SRX210 Services Gateway with Integrated Convergence Services implements a
media gateway and a survivable call server (SRX Series SCS). The SRX210 Services
Gateway with Integrated Convergence Services integrates voice and data capabilities
to connect SIP phones and legacy analog phone, fax, PBX devices in a local site to SIP
trunks or PSTN service providers. These capabilities enable you to leverage IP
infrastructure for both voice and data needs.
The SRX210 Services Gateway with Integrated Convergence Services performs the
following basic functions:
Connects local legacy analog phones, fax machines, and PBX devices to VoIP networks
so these devices can make calls using VoIP to other SIP phones or the PSTN, and vice
versa.
Assumes the call routing role as a survivable call server for local SIP or Analog phones,
in the event of loss of WAN connections.
Supports emergency calling (E911) by providing the mechanism to detect emergency
calls from local VoIP phones and passes these calls to the PSTN when detected.
Provides power failover support for one analog phone and PSTN FXO port.
The SRX210 Services Gateway with Integrated Convergence Services also offers the
following additional features:
Digit manipulation for remapping digits
Caller ID support for detection and transmission of caller information (for U.S.
standards)
Call waiting for SIP and analog phones, in which the user is alerted about a pending,
incoming call
Call hold and resume, in which SIP calls may be placed on hold and resumed by the
SIP phone user
Call waiting and call forwarding
Local auto attendant with a standard workflow, allowing the caller to enter an extension
number to reach the call destination
Voice mail answering and retrieval through PSTN digit mapping
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