Aricent Skill Set | Aricent Thrust Areas | Case Studies

Aricent Thrust Areas

• V5 Enabled Access Gateway Solution
  
  The solution involves developing Access Gateway solution where the gateway is connected to the PSTN network through a V5 interface. Towards the subscriber side, this access gateway provides connectivity towards subscribers over an IP or ATM network.
  
  Aricent has established proficiency on the following, which form an inherent part of the solution-set.
  • Customizing and Porting Aricent V5 Access Network protocol stack on customer-specific platform
  • Developing call control and other management modules to keep track of the call and various resources involved in the call
  • Developing a User Interface so that operator can administer and maintain this gateway.
  • Enhancing maintenance tasks
  • Identification of the test setup and making the test plans
  • Testing of the complete solution by an independent test team from Aricent
  • Ensuring inter-operability with different Local Exchanges
  • Ensuring certification with the National PTT bodies arranged by the customer
    
    

  
  
  

  
  The figure shows the placement of the Access Gateway in a network. Access Gateway is connected to Local Exchange using V5.2 protocols as defined by ETSI and ITU-T. Towards the subscriber side, Residential Gateway and Access Gateway shall communicate on BLES, MGCP/ Megaco/ H.323/ H.248 protocols.

• V5 BLES Stack
  
  Aricent is continuously enhancing its V5 product suites for meeting emerging challenges with new technologies. In the domain of Voice and Multimedia over ATM (VMoA), Aricent is in the process of adding BLES (Loop Emulation Service) stack to V5 product line. This service is designed to emulate a customer’s local loop using ATM. The Loop Emulation Service using AAL2 for Narrowband Services fulfills a market need for an effiicient transport mechanism to carry voice, voice-band data, fax traffic, ISDN B-channels and D-channels over a broadband subscriber line connection such as Digital Subscriber Line (xDSL), Hybrid Fibre Coax (HFC ) or wireless between customer premises and a service node such as provided by the public switched telephone network.
  
  BLES stack is used for signaling at Customer premise-IWF and Central Office IWF Besides being a modular, scalable, portable stack, BLES stack can be customised for National specifications, supports Hot standby, offers debugging and trace functionality and many more features. BLES stack leverages the inherent operational efficiencies of AAL2 and SVCs such as :
  
  
  • Bandwidth Efficiency
  • Support for compression and silence suppression
  • Support for idle voice channels
  • Multiple user channels with varying bandwidth on a single ATM connection
  • VBR ATM traffic class : The AAL2 standard supports rt-VBR traffic, which closely matches the characteristics of human voice
  
  
  

Last updated : March 21, 2007