[attachment=14355]
DOTSOFT the IT TOOL used in BSNL
1. External/internal infrastructure
• External infrastructure : Lines and cables ( U/G including OFC )
• Internal infrastructure : Battery, Power Plant, E/A, A/C plant, MDF, Switches ( C-DOT, OCB 283, EWSD, AXE etc ), Leased Lines ( MLLN ), Broad Band, MPLS VPN,
2. Services offered by BSNL
• WLL: CDMA Technology
• INTERNET
• BROAD BAND
• MANAGED NETWORK SERVICES
• MPLS VPN
• ISDN
• LEASED LINES
• VSAT
• IN SERVICES
• VALUE ADDED SERVICES
• ENTERPRISE SOLUTIONS
• TELEGRAPH
• EPABX
• DATA COMMUNICATIONS
• DSPT SERVICE
3. BSNL Managed Network Services
• End-to-end Turn key Implementation (including CPE)
• Proactive management through state of the art NoC
• Periodic reporting facilitating trend analysis
• Capability to provide VPN connectivity from any part of the country.
• Managed Firewall as well as IP Sec
4. BSNL MPLS VPN
• BSNL's IP Backbone using MPLS Technology:
• Keeping pace with the technological trend to provide latest and varied value added services to its customers, BSNL harnesses IP Infrastructure based on MPLS Technology to offer world class IP VPN services. MPLS is an acronym for "Multi Protocol Label Switching".
• MPLS VPN is a technology that allows a Service Provider like BSNL to have complete control over parameters that are critical to offering its customers service guarantees with regard to bandwidth throughputs, latencies and availability. The technology enables secure Virtual Private Networks (VPN) to be built and allows scalability that will make it possible for BSNL to offer assured growth to its customers without having to make significant investments. BSNL would now be geared to provide Bandwidth on demand, Video Conferencing, Voice Over IP (VoIP) and a host of other value added services that could revolutionize the way a corporate business works!.
5. MPLS VPN advantages:
• BSNL's primary objectives in setting up the BGP/MPLS VPN network
• (i) Provide a diversified range of services (Layer 2, Layer 3 and Dial up VPNs) to meet the requirements of the entire spectrum of customers from Small and Medium to Large business enterprises and financial institutions.
• (ii) Make the service very simple for customers to use even if they lack experience in IP routing.
• (iii) Make the service very scalable and flexible to facilitate large-scale deployment.
• (iv) Provide a reliable and amenable service, offering SLA to customers
6. ISDN
• ISDN Has emerged as a powerful tool worldwide for provisioning of different services like voice, data and image transmission over the telephone line through the telephone network. ISDN is being viewed as the logical extension of the digitalization of telecommunication network and most developed countries are in different stages of implementingISDN.
An ISDN subscriber can establish two simultaneous independent calls (except when the terminal equipment is such that it occupies two 'B' channels for one call itself like in video conferencing etc.) on existing pair of wires of the telephone line (Basic rate ISDN) where as only one call is possible at present on the analog line /telephone connection. The two simultaneous calls in ISDN can be of any type like speech, data, image etc. The call setup time for a call between two ISDN subscribers is very short, of the order of 1 to 2 seconds. ISDN also supports a whole new set of additional facilities, called Supplementary Services.
ISDN Services:
• Normal Telephone & Fax (G3) Digital Telephone -with a facility to identify the calling subscriber number and other facilities. G4 Fax Data Transmission at 64 Kbps with ISDN controller card Video Conferencing at 128 Kbps Video Conferencing at 384 Kbps. (Possible with 3 ISDN lines)
ATM (Asynchronous Transfer Mode) or PVC (Permanent Virtual Circuit)
• Variety of supplementary Services supported by ISDN.
– Calling Line Identification Presentation (CLIP)
– Calling Line Identification Restriction (CLIR)
– Multiple Subscriber Number (MSN)
– Terminal Portability (TP)
– Call Hold (CH)
– Call Waiting (CW)
– User to User Signaling (UUSI)
7. BSNL VSAT
• VSAT is a Very Small Aperture Terminal , aligned towards a designated Satellite for up-linking and down-linking communication signals.
• Anywhere connectivity is made possible even at those locations, which can not be connected through conventional media like copper cable, optical fibre, radio, microwave and any other wire-line / wireless links. VSAT is a versatile solution, not only as a reliable primary page link for non feasible areas, but also as a very successful alternate technology for back link. It also offers plethora of telecom services viz. data transfer, internet, voice, video etc.
• BSNL has footprints for supporting 512Kbps and above data rate anywhere in the main land and partly at the islands. Presently Express AM1 Satellite is in use for BSNL VSAT service. BSNL offers you the full advantage of satellite technology for non feasible areas and also seamlessly interconnect the existing MPLS-VPN and MLLN leased lines. Only BSNL has the unique capability to reach nook and corner of India.
8. BSNL IN services
• TOLL FREE PHONE SERVICE
• UAN
• VOICE VPN
• TELE VOTING
• ITC
• CALL NOW CARD
• PREMIUM RATE SERVICE
Audio, Video, Web conference services
• Audio Conferencing service allows multiple participants to converse with each other regardless of their location through the normal fixed line telephone or cellular phone.
• Video Conferencing service allows multiple participants to converse with each other regardless of their location through the video end-points or Personal computers. It involves Video and Audio communication. It's about connecting people. A video conference subscriber can add two or more video participants in a particular conference. The customers can schedule their video conferences through the Web. The video conferencing service can be availed by any user through IP or ISDN interface.
9. Fleet Management Solution
• "BSNL Network … keeping an eye on every movement; every moment"
• extract An innovative on-line tracking system powered by BSNL to manage fleets comprising of trucks, car carriers, trailers, tankers, containers or vehicles moving hazardous and specialty explosive chemicals etc. The extract vehicle tracking system uses vehicle-mounted, microprocessor-controlled device which sends periodic messages from the vehicle to a network command centre through SMS/GPRS. The received data is authenticated and forwarded to an application server which provides tracking information through an internet. Customers are provided a user name and password to access the fleet information on line. The user also has options to receive tracking information via e-mail, fax or SMS besides the facility of calling the customer support team on a toll-free telephone line.
10. IP FUNDAMENTALS
Circuit-Switching:
• In circuit-switching, this path is decided upon before the data transmission starts. the route is dedicated and exclusive, and released only when the session terminates..
• Normal telephone calls of OCB 283, EWSD,C-DOT,AXE etc.
• On PSTN customer phone to Switch (Exchange) is analog signal. Exchange to Exchange is Digital.
• ISDN is total digital.