MERA VoIP Transit Softswitch Professional (MVTS Pro)

MVTS Pro

Flexible Solution for Carrier-Grade VoIP Traffic Management

MVTS Pro is a next generation Class 4 softswitchwith session border controller functionality.MVTS Pro's main job includes collection,switching and transcoding of VoIP traffic,management of signaling and media datastreams and border access control.

MVTS Pro is a comprehensive system designed toefficiently handle big amounts of IP telephonytransit across the carrier's network.

MERA VoIP Transit Softswitch Professional (MVTS Pro)

MVTS Pro

The solution delivers the followingbenefits:

High level of integration into the existingnetwork infrastructure thanks to a RADIUSinterfaceDistributed modular architectureUnlimited capacity growth Geographic redundancy and flexiblelicense distribution

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Functionality Overview

Intrinsic and external routing:The MVTS Pro intrinsic routing mechanismallows a variety of traffic direction policies based on a diversity of parameters (ASR,gateway/route load, day of week, time of day, etc.) External routing is ensured by the RADIUSAPI which interfaces with third-party routingand billing systems.

Flexible approach to proxy mode:MVTS Pro serves as a single entry point on thecarrier's network and allows flexible choice ofthe necessary proxy mode for individual gateways and destinations. MVTS Pro featuresfull and signaling proxy modes. The full proxymode (both signaling and media proxy)provides topology hiding, enables seamlessinteraction with external gateways and bridgesbetween home and partner networks.The signaling proxy mode allows MVTS Proowners to channel media flows to bandwidthswith higher capacity, which enhances theefficiency of the system's switching resources use. Proxy options increase the system'sthroughput, while keeping high level ofdependability, network security, bandwidthmanagement and effective load balancingbetween channels.

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Operation and QoS analysis: The MERA solution provides carriers withelaborate analysis tools enabling networkcontrol and resolution of quality of service (QoS)problems. MVTS Pro allows the system operatorto view call statistics by originators, dial peers,terminating equipment, gateways or destinationsand detect performance degradation, therebyproviding service level agreement (SLA)assurance. MVTS Pro enables remote monitoringof the system operation under SNMP.

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Seamless interoperability:The solution supports kernel level SIP/H.323translation and performs codec conversion,which guarantees MVTS Pro owners excellentquality of service and seamless connectivitywith partner and corporate networks.

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Gate-keeper and SIP-registrar functionality enables carriers to interact withpartner networks built around whateverequipment. MVTS Pro can function eitheras a Gateway, or as a Gatekeeper/SIP registrardepending on the peering network architecture.

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Building up Carrier's Network with MVTS Pro

Being a key element of the VoIP- networkMVTS Pro functions as a:

SIP-registrarH.323 GatekeeperSIP/H.323 signaling proxyH.323 RAS endpointRADIUS NAS port

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MVTS Pro is a flexible solution thateasily integrates into the existingnetwork.

Number transformation helps meet variouspeering partner numbering plan requirements.MVTS Pro allows number transformation bothon the ingress and egress call legs.

- Load balancing: MVTS Pro performs dynamic re-distribution oflicenses depending on the current workload.Centralized license re-distribution adds tofault-tolerance of the system and ensures themost efficient use of the switching capacity.

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A RADIUS API allows interaction withthird-party billing applications andbilling management systems.

Technical Specifications

Supported Protocols

SIP v.2.0 (RFC 2543bis\3261)

H.323 v.2 and later (including H.245 v.7, H.225 v.4)

RTP/RTCP

T.38

SNMP v.1, v.2, v.3 (statistics and trap)

MD5, CHAP

RADIUS authentication

RADIUS authorization

RADIUS accounting (Attribute 44 and VSA)

RADIUS routing

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Carrier-to-Carrier/Carrier-to EnterpriseInteroperability

SIP /H.323 conversion Conversion of media-codecs (G.729, G.729A,G.723.1, G711A-Law, G.711mU-Law, GSM FR,Speex, iLBC)

T.38 fax pass-through

Protocol normalization to ensure seamlessinteroperability

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Network Security NAT/Firewall traversal Network topology hiding

Call authorization by IP address or usernameand password based on:

data from the MVTS Pro configurations data from an external billing system

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Call Routing

Own routing mechanism allows routingpolicies based on:

The number of the calling/called party The route's answer seizure rate (ASR) Gateway/route traffic load

Caller ID group (one gateway can belongto several groups)

Day of week/time of day

External routing: is enabled by RADIUS API which interfaces withthird-party routing systems

is possible by any criteria relevant for thethird-party routing system

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Statistics and Operation Analysis Real-time monitoring of ASR, quality of service(QoS), average call duration (ACD), disconnectcodes, etc.

Route/gateway statistics monitoring CDR-based call analysis

СDR in plain text format convenient for analysisand preliminary debugging

CDR filtering by any call parameter Preliminary debug data collection Export of CDRs in CSV format

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Accounting

Call Detail Records (CDRs)

Single point for CDR collection

Exhaustive number of fields allowing detailedcall analysis and preliminary debugging (Call ID,Disconnect Codes, Connect Time, Elapsed Time,etc.)

All relevant call details for flexible billing ofend-users and RADIUS API that allowsintegration with third-party billing systems Cisco VSA compliant call data

User authorization in billing system based onMVTS Pro data

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H.323 Gatekeeper Functionality

Zone management RAS-user registration (end-point and otherequipment)

ARQ/LRQ interaction with other networks

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Number Transformation

Regexp-based number modification patternsand rules

Calling/called party number transformationas required by partner carriers

Calling party number disguise

Differentiated number transformation for thepurposes of billing and routing

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Configuration and Control Tools

Web-interface for remote system monitoringand control

Database back up configuration

Traffic Switch administration console (CLI)

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Technical Specifications

Technical Specifications

Traffic Manager

Traffic Manager is the system's intelligence thatprovides means for:

Authentication of VoIP endpoints

Traffic balancing policies implementation Call analysis, number validation andtransformation

QoS control

Generation of all relevant details for third-partybilling systems

Traffic Manager incorporates three types offunctional modules: the Routing module, theDatabase and the Web Server.

The Database contains MVTS Pro configurationfiles and CDRs and allows data export intoexternal billing systems.

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Traffic Switch

Handles H.323 and SIP VoIP traffic, performskernel level protocol translation.

Functions as a session border controller:provides an IP-to-IP connectivity interface forsafe and secure interworking with customersand peering partners, enables interoperabilityof multi-vendor equipment, conceals thenetwork topology.

Traffic Switch is the source of call statistics,visualized and analyzed by means of the TrafficManager GUI.

Traffic Switch incorporates four types offunctional modules: Load Balancer/ H.323Gatekeeper/ SIP Registrar, Signaling Module,Media Module and Management Module.

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Architecture

The MVTS Pro modular architecture allows for optimization of the system's capacity use ingeographically distributed networks, providesfor high quality service and a variety of back upscenarios.

MVTS Pro comprises two functional layers:Traffic Switch and Traffic Manager

MVTS Pro Redundancy Diagram

MVTS Pro modular architecture allows variousredundancy schemes and ensures top-levelfault-tolerance due to dynamic re-distributionof licenses between healthy system components.You can choose between making only some of

Media node capacity(without codec conversion): Up to 1000 concurrent calls per processor core

Media node codec conversion capacity:“Heavy” codec conversion (G.723<->G.729): Up to 50 concurrent calls per processor core “Light” codec conversion (G.711<->ANY): Up to 100 concurrent call per processor core

Operating System: Debian GNU/Linux

Database: MySQL

MVTS Pro modules dual redundant (partial backup) and providing standby items for allfunctional components of the system (completeback up)

System CapacityNew calls per second (CPS): Up to 1000 under H.323 Up to 700 under SIPNew registrations per second: Up to 500

Minimal Сonfiguration сapacity(all modules are installed on one serverand backed up on another one): Up to 1000 concurrent calls (without codec conversion) Up to 5000 concurrent calls (in signaling only proxy mode)

Signaling node capacity: Up to 150 CPS

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MVTS Pro Redundancy

Technical Specifications

MERA Systems develops industry-leading tandem softswitches and session border controllers for VoIP thatenable carriers and service providers to manage VoIP transit across their networks. MERA solutions offer apowerful combination of efficiency, scalability and rich functionality, bringing added value andrevenue-generating opportunities to carriers globally. To date, MERA Systems is a key provider of highly reliableand cost-effective VoIP switching and IP Centrex platforms. The company has 600+ deployments in 74 countriesworldwide. MERA Systems' innovations solve today's challenges and lay the ground for tomorrow's success.

About MERA Systems

15 Wertheim Court, Suite 303Ricymond Hill, OntarioL4B3H7 CanadaTel.: 1 905 882 8603, Fax: 1 905 882 7414Email: info@mera-systems.comURL: www.mera-systems.com

Copyright © 2003-2007 MERA Systems Inc. All rights reserved.MERA Systems Inc, MERA VoIP Transit Softswitch are the registered trademarks of the MERA Systems Inc. All the other products and brand names mentioned in the document are the registered trademarks of their respective owners. MERA Systems Inc. reserves the right to change any information contained in this document without prior notice. The information contained in this document is the property of MERA Systems Inc. No part of this publication may be reproduced or copied in any form or by any means – graphic, electronic or mechanical including photocopying, recording, taping, or any other information storage and retrieval system – without written consent of MERA Systems Inc. No third party, organization or individual, is authorized to grant such permission.

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