Industries » Industry Overview » Switching/Routing

Switching/Routing

HSC offers Turnkey solutions for design, development and technical support for Layer 2/3 switching solutions, border controllers and application gateways, VPNs and interconnect functions and home gateways which feature Mobile IP, IPv6, IPv4-v6 co-hosted environments. Strategy and Migration services for equipment based on IPv4 to IPv6.

White Paper/Open Sources related to Switching/Routing

MSRP stack for Android

Abstract: HSC is pleased to offer an android port of the msrp stack from java.net for the open source community.
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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...
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...
TCP revisited Abstract: TCP is transmission Control Protocol, the Layer4 protocol for communication over both wireline as well as wireless links. It is one of the most widespread of protocols in usage today. All key applications defining the web today, http, email transfer, file transfer, etc. 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...

Case studies related to Switching/Routing

CPE Agent Development Abstract: The need was to develop a CPE agent compliant to TR-069 and TR-098 specifications for management by ACS. CPE agent was required to facilitate management of TR-069 based accessible parameters (TR-106) and support data model for provisioning of a voice-over-IP (VoIP) CPE device (TR-104). A CPE agent was developed in compliance to TR 069, TR 104 and TR 106 specifications. Salient features of the CPE Agent are follows: Initial CPE configuration, Re-provisioning at any subsequent time, Vendor-specific configurations. Status and performance monitoring of the CPE. File download initiation, dynamic notifications. The solution supports: All mandatory Events Notifications. All mandatory SOAP based RPC support. HTTP message exchange between CPE and ACS Server using Secured Transport (SSL 3.0 /TLS 1.0) and X.509 certificate verifications. Customer Benefits: Specification based agent allows for extensible and flexible design. Many companies and operators have adopted TR-069. 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. 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...
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...