1. Application Note
A u dio Cod e s M e d ian t 1 0 0 0 – TM
the Ideal Platform for running
y o ur IP-PBX s oftwa re
As PBX vendors are migrating from TDM PBXs and hybrid
solutions to pure IP-PBX solutions, a need has arisen for the correct
platform in order to run IP-PBX software.
Enterprises globally, prefer a single box solution that will host a
complete telephony solution: the PBX software, the media gateway
functionality, and advanced applications such as conferencing,
voicemail/Unified Messaging and transcoding.
Enterprises acknowledge that any solution they select must be based
on open industry standards: SIP for call control and MSCML for media
services, allowing easy interoperability with third party devices such
as IP Phones, and any third party application that may be selected
in the future. Enabling a combination of third party hardware and
software from third party sources reduces the cost of the solution,
enabling a selection of the best products with suitable features.

2. 2
Application Note
Accordi ng to the demand for a standards-based, open platform for IP-PBX,
AudioCodes has built and created the MediantTM 1000 application-oriented open business
gateway – an ideal solution for IP-PBX software vendors searching for an OEM platform
to run their software, providing a full solution in a single, 1 rack unit form factor:
M A market leading modular media gateway, supporting a mix of FXS, FXO, BRI and
E1/T1/J1 PSTN interfaces
M OSN (Open Solutions Network) server, which can run Windows or Linux operating
systems and host the IP-PBX application
M Media Processing Modules (MPMs), that can provide the DSP resources needed to
support enhanced applications such as conferencing, announcements, IVR, recording
and transcoding
M Future support for a secured router module, providing WAN access, data routing and
SBC functionality in the same box
World leading telecom vendors are currently utilizing the Mediant 1000 platform, in
order to run their IP-PBX solution, shortening time-to-market, and saving R&D, logistics
and support expenses of Next Generation enterprise telephony solutions.
OSN Module
I/O Module MPM Module Connectivity/Router Module
Modularity
The Mediant 1000 supports 6 modular slots, allowing a mix of E1/T1/J1 digital trunks,
ISDN BRI, FXS and FXO Loop Start/Ground Start ports, with up to 4 digital trunks or
24 analog ports in the same gateway (4-120 channels). IP-PBX vendors can utilize
these ports to connect to PSTN (using E1/T1/J1 digital trunks, BRI or FXO), to support
a direct connection to existing POTS phones, faxes and modems (using the FXS
interfaces), or to connect to existing legacy PBXs.
OSN Server
The OSN Server, hosted inside the Mediant 1000, is a powerful, Intel-based platform,
which can host the IP-PBX software, and/or any other value added application required
by the OEM vendor. Tested to support more than 500 concurrent IP telephony users,
the OSN is currently based on an Intel Celeron 600 MHz CPU (equivalent to 1.5GHz
Pentium in a standard PC), 512MB-1GB of RAM and single/dual hard disk drives.
The OSN was tested to run Microsoft Windows and various Linux operating systems.
MPM Module
The Mediant 1000 can host up to 2 MPMs (Media Processing Modules). The MPM includes
the DSP resources required to offload the media-intensive applications from the CPU.
Supporting standard MSCML (Media Server Control Markup Language) allows the
application server to easily utilize the MPM resources for media processing features

3. 3
Application Note
such as: conferencing, announcements, recording and transcoding. Supporting these
features, both on the TDM and the IP side, enables the OEM vendor to easily integrate
into the platform key applications such as voicemail/Unified Messaging, IVR and
conferencing. In addition to the TDM interfaces, the Mediant 1000 supports up to 60
IP media resources simultaneously. Supporting such applications on the DSP based
platform frees up the resources of the CPU which runs the IP-PBX application, and
provides more flexibility, as well as an option to be used as a DSP bank for more
advanced gateway applications.
Interoperability & Flexibility
The Mediant 1000 has been tested for interoperability with numerous legacy TDM PBX
vendors, PSTN switches, IP-PBX and Softswitch vendors and IP-phones, and is
homologated in over 75 countries worldwide, saving the investment of OEM vendors
in long-cycle interoperability and homologation testing of specially built platforms.
The Mediant 1000 supports a wide range of PSTN protocols (many variants of CAS &
PRI), as well as many industry standard LBR and wideband Vocoders for wireline, cable
and cellular implementations (including G.711, G.726, G.723.1, G.729A, GSM-FR, MS-GSM).
Headquarters
Branch Office
CO
Fax POTS
CO
MediantTM 1000
POTS
PSTN
Interface
IP-Phones IP-Phones
MP-11x
Fax
LAN
IP
Openness
AudioCodes’ line of Media Gateways enables the OEM vendor, as well as the end
customer, to complement the integrated Mediant 1000 IP-PBX solution with external
media gateways in order to support remote branches, additional FXS connections, or
higher density of E1/T1/J1 trunks. AudioCodes’ complete product portfolio of Media
Gateways use the same feature set and are fully interoperable with the Mediant 1000.
AudioCodes line of Media Gateways cover the full range of density needs, from a 2 FXS
ports residential gateway, up to a high density, carrier class gateway supporting up to
16,000 VoIP channels.

4. 4
Application Note
Redundancy
The Mediant 1000 was designed to support maximum built-in redundancy features.
Supporting dual power supplies, dual network connections and module hot-swap allows
the OEM vendor to offer the enterprise customer maximum availability of the PBX
system. In addition, the Mediant 1000 supports life-line and PSTN fallback features to
allow direct connectivity to the PSTN in case of IP network failure. Support of Standalone
Survivability (based on an internal implementation of a SIP B2BUA), enables the IP-
Phones to remain active in case of a branch office being disconnected from a central
SIP Proxy.
Security & Management
The Mediant 1000 was designed to provide extensive security and management features
to the OEM vendor and end customer, including full security features of the media
(SRTP), the control (TLS /SIPS) and the management (IPSec, HTTPS, SSL). Supporting
SNMP v.3, as well as full functionality and chassis management from the web interface,
the Mediant 1000 management interface can be customized and private-labeled for the
specific needs of the OEM vendor.
Vo i c e Q u a l i t y
As proven in the 4th ETSI VoIP gateways test, AudioCodes gateways provide the best
voice quality in the marketplace today. Supporting a wide variety of VoIP codecs, and
advanced features for voice quality improvement, the Mediant 1000 provides the best
VoIP quality, allowing the use of quality-sensitive applications such as speech recognition.
Routing & Security Module (future)
The Mediant 1000 includes a special slot for future support of a secured router module.
This module will allow the direct connection of the OEM solution to a wide variety of
WAN technologies (including an internal modem), support of a full suite of IP routing
functions, and most importantly, the support of an enterprise SBC (Session Border
Controller) function – in order to provide full security of the voice service and direct
SIP trunk connection to the Service Provider.
Logistics & Operations
AudioCodes is a leading supplier to global telecom OEM vendors. Years of experience
in supporting OEM models permits AudioCodes to provide OEM vendors with important
services such as full private labeling of gateway hardware and software (management
interface). In addition, AudioCodes can load the OEM vendor’s software and configuration
files onto the gateway during the manufacturing process, delivering the Mediant 1000
fully configured and ready to be delivered to the end customer, maximizing the profit
for the OEM vendor.

5. 5
Application Note
About AudioCodes
AudioCodes Ltd. (NASDAQ: AUDC) provides innovative, reliable and cost-effective Voice over Packet
(VOP) technology, Voice Network products, and applications to OEMs, Network Equipment Providers,
Service Providers and System Integrators worldwide. AudioCodes provides a diverse range of flexible,
comprehensive media gateway and media processing technologies (based on VoIPerfect™ -
AudioCodes’ underlying, best-of-breed, core media gateway architecture) and Session Border
Controllers (SBCs). The company is a market leader in product development, focused on VoIP Media
Gateway, Media Server and SBC technologies and network products. AudioCodes has deployed
tens of millions of media gateway and media server channels globally over the past few years and
is a key originator of the ITU G.723.1 standard for the emerging Voice over IP market. The Company
is a VoIP technology leader focused on quality, having recently received a number one ranking from
ETSI for outstanding voice quality in its media gateways and media servers. AudioCodes voice
network products feature media gateway and media server platforms for packet-based applications
in the converged, wireline, wireless, broadband access, enhanced voice services and video markets.
AudioCodes enabling technology products include VoIP and CTI communication blades, VoIP media
gateway processors and modules, and CPE devices. AudioCodes’ headquarters and R&D facilities
are located in Israel with an R&D extension in the U.S. Other AudioCodes’ offices are located in
Europe, the Far East, and Latin America.
International Headquarters
1 Hayarden Street, Airport City
Lod, Israel 70151
Tel: +972-3-976-4000
Fax: +972-3-976-4040
US Headquarters
2099 Gateway Place, Suite 500
San Jose, CA 95110
Tel: +1-408-441-1175
Fax: +1-408-451-9520
www.audiocodes.com/info
www.audiocodes.com
© 2007 AudioCodes Ltd. All rights reserved. AudioCodes, AC, Ardito, AudioCoded, NetCoder, TrunkPack, VoicePacketizer, MediaPack, Stretto, Mediant,
VoIPerfect, IPmedia, OSN, Open Solutions Network, What's Inside Matters, Your Gateway To VoIP, 3GX, Nuera, Netrake, InTouch, CTI² and CTI Squared
are trademarks or registered trademarks of AudioCodes Limited. All other products or trademarks are property of their respective owners.
Ref. #LTRM-09033 V.1 05/07