MEGACO/H.248 stack from Aricent for Next Generation Networks

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Aricent also offers solutions like H.248, H.323, SCTP, Mgcp, Sigtran, SIP, SIP Proxy, SIP Stack, Softswitch, Media Gateway, Media Gateway Controller, Sua, IUA, M2UA, MLPA, M3UA"> <meta name="Keywords" content="MEGACO/H.248,megaco/h.248,MEGACO,H.248,H.248 stack,Softswitch, SIP Server, Gatekeeper, GK, MGC, Media Gateway Controller, H.323 Gateway, MGC, MG, Media Gateway, SG, Signaling Gateway, MGCP, MEGACO, MEGACO Stack, SIP, H.323, SIGTRAN, H.248, SCTP, M3UA, MLPA, M2UA, M2PA, IUA, SUA, Protocol Stacks, Call Agent, SIP Server, SIP Proxy, SIP Redirect Server, SIP Registrar, Voice over Packet, Mgcp, Sigtran, IUA, M2UA, MLPA, M3UA, VoIP, VoP, Media Gateway Framework, Gatekeeper, H.323 Stack, SS7, VOIP stacks, VoIP Frameworks, Gateway, SG, Signalling Gateway, Sip User Agent, Stream Control Transmission Protocol, MTP3 User Adaptation Layer, MTP2 Peer-to-Peer Adaptation Layer "> <meta name="resource-type" content="document"> <meta name="Author" content="Corporate Marketing"> <meta 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src="/web/20090520062532im_/http://hssworld.com/images/footer_line.gif" width="434" height="2" alt=""></td> </tr> <tr> <td valign="top" class="text"><br>  <table width="95%" border="0" cellspacing="0" cellpadding="1"> <tr> <td class="text"> <div align="center"><b><span class="text">MEGACO/H.248 Overview</span></b><span class="text"> | <a href="MEGACO_features.htm">MEGACO/H.248 Features</a> | <a href="MEGACO_deliverables.htm">MEGACO/H.248-Aricent Deliverables</a> | <a href="MEGACO_products.htm">Related Products</a><br> </span><br> <img src="/web/20090520062532im_/http://hssworld.com/voip/images/linehr.gif" width="350" height="2"> </div> </td> </tr> <tr> <td class="text"> <br> <table width="100%" border="0" cellspacing="1" cellpadding="1"> <tr> <td width="61%" class="headerB">MEGACO/H.248 Overview</td> <td width="39%" class="text" align="right"><a style="text-decoration: none; padding: 2px; border:1px solid #f4f400; background:#ffff80" href="https://web.archive.org/web/20090520062532/http://www.aricent.com/en/contact.html">Contact us for more information</a></td> </tr> </table> <p> <span class="text">MEGACO is a general-purpose gateway-control protocol standardized in the IETF as RFC 3015 and as recommendation H.248 in the ITU-T. It is a master-slave, transaction-oriented protocol in which Media Gateway Controllers (MGC) control the operation of Media Gateways (MG). The MEGACO Stack and other Voice over Packet (VoP) software solutions from Aricent provide a complete set of building blocks for quickly developing Next Generation solutions. The solutions meet the carrier class requirements of redundancy, scalability and reliability.</span></p> <p class="text">MEGACO/H.248 is central to the VoP solutions and may be integrated into products such as Central Office Switches, Gateways (Trunking, Residential and Access), Network Access Servers, Cable Modems, PBXs, IP Phones, Soft Phones, IADs, Middleboxes etc. to develop a convergent voice and data solution.<br> <b><br> <a href="/web/20090520062532/http://hssworld.com/voip/stacks/MediaGatewayToolKit/overview.htm">Check out</a> the Aricent MG Toolkit for Rapid implementation of MG. </b> </p> <p align="center" class="text"><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="https://web.archive.org/web/20090520062532oe_/http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0" width="318" height="315"> <param name="movie" value="../../images/megacostackcontextinsystem.swf"> <param name="quality" value="high"> <param name="MEGACO/H.248" value="MEGACO/H.248"> <param name="MEGACO/H.248" value="MEGACO/H.248"> <param name="MEGACO/H.248 Stack Architecture" value="MEGACO/H.248"> <embed src="/web/20090520062532oe_/http://hssworld.com/voip/images/megacostackcontextinsystem.swf" quality="high" pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="318" height="315" megaco h.248="MEGACO/H.248"> </embed> </object><br> <b>MEGACO Stack Context in System</b><br> </p> <p class="text"><span class="text"><b><a name="fuct"></a>Aricent MEGACO/H.248 Stack: Functions</b></span></p> <ul> <li class="text"> Association management: Creation and management of control association between MGC and a MG</li> <li class="text">Transaction and Command management: Transaction and Command requests and replies management</li> <li class="text">ALF support: Ensures reliable delivery of transactions</li> <li class="text">Encoding/Decoding in both text and binary</li> <li class="text">IN and ATM SDP encoding support</li> <li class="text">Easy Packages upgrade support ( validation, addition and editing of packages)</li> </ul> <p> </p> <p class="text"><span class="text"><b><a name="user"></a>Aricent MEGACO/H.248 Stack: Service User Interface</b></span></p> <p class="text">The Service User Interface exposes Protocol APIs and Management APIs to the service user. It provides the following functions to the service user:</p> <ul> <li><span class="text">Interfaces to: </span> <ul> <li class="text">Register with the stack</li> <li class="text">Configure the protocol parameters</li> <li class="text">MG/MGC application for sending protocol messages to the MGC/ MG application</li> <li class="text">Activate and deactivate management features of the stack</li> <li class="text">Protocol trace, statistics collection, status reporting, error reporting and redundant mode operation</li> </ul> </li> <li class="text">Flexibility to collate commands into transactions</li> <li class="text">Protocol message encoding and decoding services</li> <li class="text">Parameter validation services including package parameter validation.<br> The interface may operate in the same process context (functional interface) or a different context (message based interface) than the core stack </li> </ul> <p></p> <p class="text"><b class="text">Redundancy Support</b></p> <p class="text">The MEGACO/H.248 stack provides multiple redundancy configurations to support different applications. Support options include:</p> <ul> <li class="text">Redundant applications</li> <li class="text">Redundant MEGACO/H.248 stacks</li> </ul> <p class="text"><b class="text">Scalability</b></p> <p class="text">The MEGACO/H.248 stack design offers capability for scaling as the target application grows. Scalability can be achieved by following means:</p> <ul> <li class="text">Increase the number of call agents and MG-MGC associations, which the stack handles as the system capacity grows</li> <li class="text">Moving from uni-processor environment to multi-processor target hardware</li> <li class="text">Moving from a single thread of control operating system to a multi-tasking real time operating system</li> <li class="text">Init time dimensioning of parameters</li> </ul> <p class="text"><br> <b class="text">MEGACO/H.248 Operation and Management Support</b></p> <ul> <li class="text">Extensive statistics collection</li> <li class="text">Error reporting</li> <li class="text">Status reporting</li> <li><span class="text">Multi-level tracing support</span><br> </li> </ul> <p> </p> </td> </tr> </table> <p> </p> <p align="center" class="light"> Last updated : July 9, 2008 </p> <p> </p> </td> </tr> </table> </td> <td valign="top" width="10%" rowspan="2"> <table width="165" border="0" 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