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Case Studies
Accelerating Time to Market
Client: Internal
Time-to-market is a commonly overheard buzzword, but in practice it is an essential factor in ensuring ongoing competitiveness in the fast-moving world of telecommunications and embedded devices. At Asidua, we constantly refine our consulting offering and improve capabilities with a view to providing maximum turnaround and delivery times, ensuring that our clients stay ahead of the curve. This case study deals with the question of how modern software innovations be utilized to reduce, or even eliminate, startup and maintenance overhead on a project.
Legacy Network Migration Architecture
Client: Virtual Access
Virtual Access, a leading supplier of managed network solutions, has developed an architecture for migration of legacy networks (X25, BiSync, etc) to next-generation network (NGN) topologies. Asidua’s Device Services Division played a key role in the development of the X.25 migration solution. Deploying our Embedded Telecoms Integration offering, Asidua set about drawing up a specification for presenting X.25 interfaces at the customer premises using ADSL as the connection to the central office.
ISDN Line Card Development
Client: Major Telecoms Device Manufacturer
Asidua was tasked to develop the software for a DSLAM ISDN-BA Line Card which configures and manages 32 subscriber line pairs. The line card contained two Infineon DELIC devices providing a TDM traffic interface to each DELIC via IOM-2 bus providing ISDN on 32 subscriber pairs. Asidua is a strategic partner in the specification, design, implementation and validation of all real-time embedded software for a major telecom vendor’s access technology portfolio. This client is a key supplier in the access domain, providing solutions to link BT’s existing access network to the 21CN core IP-based network. Thanks to the client’s DSL Access Multiplexer (DSLAM), multiple services can be delivered simultaneously, from fast Internet access and video-on-demand, to voice telephony using VoIP.
G.SHDSL Line Card Software
Client: Major Telecoms Device Manufacturer
Asidua is a strategic partner for the specification, design, implementation and validation of all realtime embedded software for major telecom vendor’s Digital Subscriber Line (DSL) portfolio.This client is a key supplier in the access domain, providing solutions to link BT’s existing access network to the 21CN core IP-based network. The client’s DSL Access Multiplexer (DSLAM), multiple services can be delivered simultaneously, from fast Internet access and video-on-demand, to voice telephony using VoIP. The multi-service capability of the DSLAM supports both ADSL and G.SHDSL technology, offering this to many thousands of users on a single ATM/Ethernet network interface.
Migrating Legacy ATM Networks to “triple-play” Ethernet
Client: Major Telecoms Device Manufacturer
Asidua’s client – a major telecoms device manufacturer – was involved in a project with a leading communications solutions provider to migrate the delivery of its broadband services to its next generation network. Part of this project involved the migration of existing ATM networks to Ethernet. Asidua’s involvement with this project concerned upgrading the software on existing linecards (from the old ATM network) to support the transport of “triple play” broadband Ethernet services to the next-generation network. The communications solutions provider required the Ethernet services to be part of its broadband offering.
Embedded Linux Architecture Design & Support
Client: Major Telecoms Equipment Manufacturer
In the fast-paced device market where Asidua’s expertise is focussed, Linux has come to represent an excellent compromise between stability, performance, and development and deployment costs. In one recent case, one of Asidua’s customers required a fully functional Linux-based application suite, featuring dual redundant software banks, to be implemented for a small-footprint device with only 8MB of flash memory on board. This case study describes the technical challenges and how they were overcome.
E1 Line Card Development - Hardware Integration
Client: Major Telecoms Equipment Manufacturer
Asidua’s client – a major telecom device manufacturer – was involved in a project with a leading communications solutions provider to migrate the delivery of its legacy circuit-switched service offerings to its next-generation network. This network would allow for multiple services to be delivered simultaneously, from fast Internet access and video-on-demand, to voice and data telephony using VoIP. The communications solutions provider required for business E1 services to be part of their multi-service offering.
Providing VPN services in the Edge Network
Client: Major Telecoms Equipment Manufacturer
A major telecommunications equipment manufacturer engaged Asidua to design and develop the software for a new MPLS LER service offering which would allow providers equipment (PE) to provision point-to-point Layer 2 VPN services. These Virtual Private Wire Services utilise the Ethernet Pseudowire Emulation Edge-to-Edge (PWE3) to enable customer equipment (CE) to be connected to remote equipment via the existing MPLS or IP backbone network creating an emulated Ethernet service.
E1 line Card Subsystem - Software Development
Client: Major Telecom Device Manufacturer
Asidua’s client – a major telecom device manufacturer - was involved in a project with a leading communications solutions provider to migrate the delivery of its legacy circuit-switched service offerings to its next-generation network. This network would allow for multiple services to be delivered simultaneously, from fast Internet access and video-on-demand, to voice and data telephony using VoIP. The communications solutions provider required for business E1 services to be part of their multi-service offering.
Configuration Management & Build Systems
Client: Major Telecoms Equipment Manufacturer
In the fast-paced device market where Asidua’s clients are manufacturers & integrators at the leading edge of the markets they serve. Time to market is paramount, and this requires the implementation of fast software build and turnaround strategies which promote a fluid, rapid software development methodology which does not compromise software stability and reproducibility. Asidua’s ETI methodology has been designed with these requirements in mind and was recently successfully implemented for a major telecoms industry client.
E1 TDM/ATM Interworking in the Access Network
Client: Major Telecoms Equipment Manufacturer
A major telecoms equipment manufacturer re-engaged Asidua following successful development and deployment of an SNMP Agent on the manufacturer’s ATM Switch Fabric card. The remit was to design and develop the software for a new card that would offer E1 TDM/ATM interworking and traffic consolidation. The card would allow telecom network operators to make more efficient use of their core network bandwidth using a Circuit Emulation Service (CES) to transport E1 TDM traffic.
21st Century Access
Client: Fujitsu Telecommunications
The technical complexity of moving access networks into the 21st century and scope of developing a replacement network requires enormous investment of engineering resources in a coherent and effective manner. Fujitsu Telecommunications, a major telecoms equipment manufacturer, recognised Asidua as having this capability and expertise to deliver a cost effective and quality solution to meet aggressive time to market demands.
