Overview | Thrust Areas | Case Studies

VoIP Thrust Areas

Aricent, the global leader in SIP technology, delivers a host of comprehensive and state-of-the-art software outsourcing services for easy development and deployment of a VoIP network.

Aricent's VoIP services include the following expertise areas:

• Network Nodes
• Signaling Protocols
• Interoperability of Signaling Protocols
• Media Processing
• Platforms
• Testing

Network Nodes

Aricent has significant expertise in developing various network nodes and specific software components for them. Our expertise covers the entire breadth of VoIP networks listed below, including the elements of future networks, such as IMS:

• IP Phones
• IP PBXs
• Residential/Media Gateways
• Softswitches
• Gatekeepers
• Session Border Controllers (SBCs)
• Call Session Control Functions (CSCFs)
• Application Level gateways
• Bandwidth Managers
• Application Service Brokers

Signaling Protocols

Our extensive expertise in signaling protocols as listed below, enables us to provide robust solutions in this area.

• SIP
• H.323
• MEGACO
• MGCP
• SCTP
• RTP
• SS7/SIGTRAN
• ISDN

Interoperability of Signaling Protocols

Aricent has the expertise to interwork the following protocols to architect and develop nodes for niche customer segments leading to a wider VoIP deployment and acceptance:

• SIP-H.323
• SIP-MEGACO
• SIP-MGCP
• SS7-SIGTRAN

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Media Processing

Aricent is a proven provider of high performance Voice over Packet (VoP) and Fax over Packet (FoP)/Fax Relay solutions that enable interworking of the equipment connected to standard PSTN lines with packet networks, such as IP, ATM, wireless, or proprietary protocols. Our DSP expertise has been leveraged in systems, such as Media Gateways, Application Servers, and Content Service Gateways. Aricent's expertise in this area includes:

• Development of wireline modems, such as V.21, V.27, and V.29, and multimedia codecs, such as G.728 and G.729
• General telephony modules, such as DTMF/Tone Generation/Detection and G.165/168- compliant Echo Cancellers
• Development of RTP/RTCP-based efficient Jitter/Delay Buffering and Streaming mechanisms
• T.30/T.38 protocol-based FoP functionalities
• Interoperability testing with standard VoP/FoP systems

Platforms

Aricent has been involved with various hardware and OS platforms for delivering its services directly to its customers or as part of various strategic partnership programs with chip, board, chassis, and OS vendors. Some of the key platforms where Aricent has worked extensively are listed below:

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Testing

Aricent is a key vendor to provide Product Quality Assurance and Testing services in the VoIP domain. Aricent has worked extensively on Functionality, Interoperability, Load, Performance, and Regression testing. Aricent also has extensive experience in automated testing processes. In addition, Aricent has also developed in-house testing tools, STATE and STEEL, to automate the Functionality and Load testing. Over the years, Aricent has evolved an extremely mature test process methodology to enable best reuse and traceability of requirements during the testing phase. The following table reflects upon the testing expertise of Aricent:

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Last updated : October 17, 2006