Hình đại diện của srajabather
@srajabather
Cờ của India
Chennai, India
Thành viên từ March, 2007
0 Đề xuất

srajabather

Trực tuyến Ngoại tuyến
VoIP Server SIP Express Router (User Registration, Authorisation and Call Routing) - Installed and configured SIP Express Router to accept origination calls from Soft and Hard Phones. - Written Perl script to calculate the Total minutes used based on ISD codes for each customer and update the same in Mysql server. Installed and configured Asterisk Open Source PBX. VoIP Hardware Configured Quintum Tenor Series, VocalTec and VegaStream Gateways Configured Various Voip Hard phones like Cisco and Grandstream. User Authentication and Accounting Designed , Installed & programmed a Centralised User Authentication and Accounting server. - Components used FreeRadius, Mysql , PHP and Perl Scripts. - All the Wireless clients, Fiber and cable customers are authenticated by this radius server. - Data Transfer and minutes used are collected by Accounting server. - Using PHP & Perl scripts, collected accounting data are manipulated and stored in Mysql. Prepaid New Connection and Renewal Process Designed and implemented the Prepaid System, where Temporary Password keys are generated and stored in the database. The temporary account created and renewal process enabled the introduction of off-the-shelf customer kits. - Technical environment : Php & Mysql. E-mail and Web Server Installed and configured E-mail server which supports POP3, SMTP , IMAP and Webmail with Spam Control. - Technical environment : Qmail, Squrrielmail, Spamassain, Mysql & Apache Webserver. Installed and configured Web Server and DNS Server. - Technical environment : Apache & Named DNS Server. Caching and Transparent proxy Server Installed and configured Squid Caching server. - Technical environment : Squid proxy server and IPtables. Helpdesk Management Server Designed and Programmed Helpdesk Mangement Server. - Technical environment : Apache, Mysql & PHP. Wireless Networking Designed and Implemented Various Base Stations in Chennai, covering a 10 K.M. Radius area. - Using Custom built Atheros based Wireless radio and Wrap motherboard. - Designed and Custom made Dish Antenna for 2.4 Ghz. - Installed and configured Star-Os router to manage the wireless links. - Configured the router to accept PPPoe connection over wireless and authenticated using centralised Radius server. - Designed and implemented various Point to Point Wireless links. Router and Access Servers * Configured Various Cisco routers and Access servers like Livingston Portmaster & Perle. * Designed and implemented QoS-driven bandwidth feature in Cisco router. * Implemented and mantianed Leased line connections using RAD and Pairgain Modems. * Implemented and maintained Analog Dial-up Access servers using Lanstream and Cisco. * Designed and Implemented Fiber networks for Metropolitan Area Network.
3 đánh giá
3.4
  • 80%Các công việc hoàn thành
  • 100%Đúng ngân sách
  • 100%Đúng giờ
  • 25%Tỉ lệ thuê lại

Portfolio

Các đánh giá gần đây

  • image of mikeissa1 ModernBill & freeRadius $100.00 USD

    “Great job,,,would highly recommend..knows his stuff and is very willing to go the extra step to help.”

  • image of tangerinevw Send Email - Web Page with Scheduling $85.00 USD

    “Selva completed a small project for me in less than a week. I provided pretty good specs and Selva did the rest, in a language (Ruby on Rails) that he had never used before. Very impressive, and I'm planningn on using Selva for the next phase of this project too. I would recommend Selva for your project too. mark”

  • image of schoolswith MYSQL database reports in PHP $46.75 USD

    “A good programmer who understands and produces output quickly.”

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