Sip Overview; Mediant 1000 Features; General Features - AudioCodes Mediant 1000 User Manual

The Mediant 1000 supports various ISDN PRI protocols such as EuroISDN, North
American NI2, Lucent™ 4/5ESS, Nortel™ DMS100 and others. 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 Mediant 1000 provides a user-friendly embedded HTTP-based Web server for remote
configuration and management using a standard Web browser (such as Microsoft™
Internet Explorer™ or Netscape™ Navigator™), from anywhere in the world with IP
connectivity to the device.
1.1

SIP Overview

SIP (Session Initialization Protocol) is an application-layer control (signaling) protocol used
on the Mediant 1000 for creating, modifying, and terminating sessions with one or more
participants. These sessions can include Internet telephone calls, media announcements
and conferences.
SIP invitations are used to create sessions and carry session descriptions that enable
participants to agree on a set of compatible media types. SIP uses elements called Proxy
servers to help route requests to the user's current location, authenticate and authorize
users for services, implement provider call-routing policies and provide features to users.
SIP also provides a registration function that enables users to upload their current locations
for use by Proxy servers. SIP, on the Mediant 1000, complies with the IETF (Internet
Engineering Task Force) RFC 3261 (refer to
http://www.ietf.org/rfc/rfc3261.txt?number=3261).
1.2

Mediant 1000 Features

This section provides a high-level overview of some of the many Mediant 1000 supported
features.
1.2.1

General Features

Superior, high quality Voice, Data and fax over IP networks.
Toll quality voice compression.
Enhanced capabilities including MWI, long haul, metering, CID and out door
protection.
Proven integration with leading PBXs, IP-PBXs, Softswitches and SIP servers.
Supports multiples of 1, 2, or 4 E1/T1/J1 spans
Spans a range of 4 to 24 FXS/FXO analog ports (in multiples of 4).
Selectable G.711 or multiple Low Bit Rate (LBR) coders per channel.
T.38 fax with superior performance (handling a round-trip delay of up to nine
seconds).
Echo Canceler, Jitter Buffer, Voice Activity Detection (VAD) and Comfort Noise
Generation (CNG) support.
Comprehensive support for supplementary services.
Web Management for easy configuration and installation.
Simple Network Management Protocol (SNMP) and Syslog support.
ThroughPacket™ proprietary feature that aggregates payloads from several channels
into a single IP packet to reduce bandwidth overhead.
Supports load balancing with proxy.
T.38 fax fallback to PCM (or NSE).
Can be integrated into a Multiple IPs and a VLAN-aware environment.
Capable of automatically updating its firmware version and configuration.
SIP User's Manual 24
Mediant 1000
Document #: LTRT-83301