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Application Developers

HSC offers Technical consulting, Service Conceptualization, Application Boutiques, PoC development (Quick, Agile and Light RAD process), Application Engineering, Testing and Porting of applications across enterprise, mobile commerce, web 2.0, social networking, SDPs, cloud computing and mobile platforms (iPhone, Android, Blackberry, BREW, S60, S40, QT, J2ME, Windows Mobile, Palm OS, PhoneGap, RhoMobile, Mobile Python).

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White Paper/Open Sources related to Application Developers

(For OLD SDK: m5-rc15) SIP UA + Stack for Google Android (GPL Source Code)

Abstract: NOTE THIS IS FOR SDK version 0.7. Please see new contribution for 1.0, the latest SDK HSC is pleased to announce a free community port of the MJSIP stack and UA to Google's Android Platform. The ZIP file contains both the SIP stack and the UA. It also contains a ported RTP implementation which is commented out because the Android emulator does not support audio capture as of Apr/29/2008.
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Migration to the Cloud Abstract: This technical whitepaper describes some typical migration challenges of a single server or traditional load balanced application server to a cloud infrastructure and also covers a recent case study where HSC helped a customer migrate their solution to the cloud. Read more...
Using SIP over 6Lowpan devices for the Smart Grid Abstract: This document is an Internet-Draft The Smart Grid initiative is an effort in modernization of the electricity grid using communication technology with the primary goals of reducing energy consumption, reducing cost (utilities and consumers), increasing reliability and the creation of new services for all participants in the value chain. Read more...
Porting Android to Embedded Platforms Abstract: Since the introduction of the open source Android platform for mobile phones by Google, there has been significant interest in the OEM community to also customize Android for other embedded platforms such as netbooks, set-top boxes, car dashboards and others. Read more...
Automotive Telematics Abstract: At its core, automotive telematics deals with services provided to vehicles over a telecommunications device. Some of the key services presently available in the domain of automotive telematics include: Automatic Crash Notification Roadside Assistance Services Vehicle Tracking Remote Door Services Navigation Assistance Traffic Assistance Concierge Services Infotainment Services Fleet Management Diagnostics The future of the Telematics would be affected by the increased availability of bandwidth and the penetration of the wireless network infrastructure. Read more...
Motivation for RSS feed for SIP Presence state Abstract: Web feeds (hereby referred to as 'feed') have always played an important role in providing users content related updates of Websites without having to visit those websites manually. Typical examples of feed usage include users 'subscribing' to the feed of a website (example, CNN.com) and thereby automatically receiving 'news headlines' when the content changes. Read more...
IMS – The Ideal Architecture for Enabling Quadruple Play for Operators Abstract: roadband IP is a great leveling ground when it comes to converged services being offered by multiple providers. For example, with the availability of Broadband, companies such as Vonage could offer IP based phone replacement solutions threatening the turf of established phone operators. Read more...
Evaluation of Load/Stress tools for Web Applications Testing Abstract: With the continued tightening of expenses, IT organizations are forced to do more with less. The emergence of open source software has given IT organizations the opportunity to reduce their development cost without sacrificing quality. Software applications such as Apache web server and Open Office productivity package are examples of open source products used by businesses to reduce the total cost of ownership (TCO) within their organizations.The high cost of performance test automation software is requiring QA professionals to begin to evaluate open source alternatives. Read more...
An Extension to SDP for Media Loopback Abstract: The wide deployment of Voice over IP (VoIP), Real-time Text and Video over IP services has introduced new challenges in managing and maintaining voice/real-time Text/video quality, reliability, and overall performance. In particular, media delivery is an area that needs attention. Read more...
Introduction to VoIP and its challenges Abstract: This paper presents a brief introduction on VoIP and discusses some of the most common deployment challenges that are faced. It also discusses the issue of Spam over Internet Telephony (SPIT), its implications and mechanisms to address this growing concern. Read more...
RFC 3261 UAC and UAS test cases for SFTF Abstract: This document has been contributed by HSC to the SIP Forum Test Framework (SFTF) organization at https://www.sipfoundry.org/sftf under the GNU LGPL license. This document captures each MUST, MAY, SHALL, SHOULD and RECOMMENDED clauses of a UAC/S as per RFC 3261 and describes test cases and call flows which could be used to test the required behaviour. Read more...
A Concept Approach at bringing Legacy Telecom Application Servers to Web 2.0 Abstract: With the increasing acceptance of AJAX as a mechanism to deliver real-time user experiences without the need of proprietary local clients and the increasing demand from consumers to have a better user experience with more features, both the Telecom and the Internet world are looking at means to be able to converge their offerings. Read more...

Case studies related to Application Developers

Spam over Internet Telephony Abstract: A leading OEM approached HSC to help them design a next generation "Spam detector" for VoIP systems. With the increasing popularity of VoIP, spam in voice telephone is a major issue and simple white or black lists do not suffice. HSC designed and intelligent feedback based system that could tap into the power of the social network community and assign ratings to known and unknown calls dynamically, taking feedback from community ratings. Read more...
SIP Core Network Router Abstract: HSC developed a high performance Linux based core SIP Router in a clustered deployment which was designed to handle IMS traffic for subscribers. Customer Benefits: Reduced Deployment Cost - each instance was capable of handling high call volume resulting in reduction of nodes required. Read more...
Multimedia Playlist Service Abstract: HSC developed a multimedia playlist sharing service for users which allowed easy sharing of music, videos and other multimedia objects. The unique sharing service was tied into operator policy control as well which allowed the operator to insert targeted advertisements, apply content filtering etc. Read more...
Identification service for Mobile customers Abstract: HSC developed a unique authentication service for one of the leading mobile transaction networks which allowed merchants to verify the source of the originating mobile payment user. Such a solution is critical for networks where number portability is in place and greatly helps reduce fraud. Customer Benefits: Reduced Time to Market and high quality deliverable Read more...
Social Network Integration with IMS Abstract: HSC developed a unique social network integration with IMS networks which allows IMS users and SNS users to be able to keep in touch with each other without the crippled and limited p2p clients such as facebook mobile. This infrastructure allowed both networks to add value to the end service delivered to consumers and offered a viable business model to both worlds. Customer Benefits: Increased customer stickiness - keep in touch with all your friends across many social networks without having to install specialized software for each Integrated services - deliver mashup services using attributes of both networks (example, presence of IMS and mood from Twitter) Read more...
Realtime User Generated Video Ringtone Abstract: HSC developed an innovative realtime video ringtone solution for an emerging ISV which allowed friends to call each other, replacing the traditional ringtone of phone with an audio/video ringtone of the user’s choice in real-time. In addition, advanced policy handling functionality was implemented which ensured proper rights management and further distribution of the shared clip. Customer Benefits: Significantly reduce time for deployment – our customer was able to trial the solution across multiple carriers around the world in record time due to our quick implementation time Greatly increased interoperability – our system worked ‘out of the box’ with almost none or minimal changes across multiple vendor IMS systems Leading innovator – our customer was recognized as a leading innovator with majority of the operators who used this solution Read more...
Multimedia Playlist Service Abstract: HSC developed a multimedia playlist sharing service for users which allowed easy sharing of music, videos and other multimedia objects. The unique sharing service was tied into operator policy control as well which allowed the operator to insert targeted advertisements, apply content filtering etc. Read more...
Identification service for Mobile customers Abstract: HSC developed a unique authentication service for one of the leading mobile transaction networks which allowed merchants to verify the source of the originating mobile payment user. Such a solution is critical for networks where number portability is in place and greatly helps reduce fraud. Read more...
Design and Development of application stack over ARM based vehicle Telematics Control Unit (TCU) for supporting various PASS-6 subscriber, management and diagnostics services Abstract: HSC Designed and Developed the complete of Configuration and Provisioning Unit for next generation TCU Architecture (Gen 2). Since HSC has already worked on the Gen 1 architecture it was also instrumental in effectively porting of software module catering to PASS-6 and management services from TCU Gen 1 to TCU Gen 2. Read more...
Design and development of TOC for Telematics service providers. Abstract: HSC Designed and Developed the features on the existing TOC to facilitate subscriber services and TCU management. The management support was enhanced for Safety and Security Services, Navigation Services, Location Based Services, Remote Diagnostics - Modules Scan and Diagnostics Reporting, TCU Provisioning and Configuration Download, TCU SW Download. Read more...
Design and Design and Development of a Generic TOC which could support for both Legacy TCUs (CDMA Based) and new TCUs (GSM/GPRS Based) Abstract: HSC did a Generic implementation ( including design) of a Transport Protocol Layer at the TOC which would hide technology (CDMA or GSM) specific details and hence enable management of TCUs interfaced to the TOC through varied wireless network interfaces like GSM or CDMA. Read more...