OpenSIPS Freelancers

Showing 6 freelancers

OpenSIPS Freelancers

Showing 6 freelancers

  • VoIP,SIP,Asterisk,FreeSwitch,Opensips,Kamailio, Linux,MySQL,PHP,Apache

    Over the last 3.5 years, I have developed a wide range of IT solutions including VoIP, Web and Mobile development for small businesses and startup companies as well as for large companies. I have experience in VoIP, FreeSwitch, Opensips … more

    Over the last 3.5 years, I have developed a wide range of IT solutions including VoIP, Web and Mobile development for small businesses and startup companies as well as for large companies. I have experience in VoIP, FreeSwitch, Opensips, Kamailio, Asterisk, FreePBX, A2billing, Linux, Opensource Consulting, MySQL, PHP, Joomla, Android, asp.net-mvc, c#, .net-framwork etc. I have developed class4-class5 Soft Switches, SIP Proxy, FAX Servers, Fax2mail, Fax over IP, Messaging Servers, Session Border Controllers, IVR application, Web Applications and many others. My core competency lies in complete end to end IT solutions for VoIP, Web and Mobile technologies.  less

    voip-administration sip opensips asterisk freeswitch voip-software php radius android-app-development joomla mysql phpmyadmin website-development html html5 javascript jquery css css3 asp asp.net asp.net-mvc c# .net-framework 00 more less
    • $18.50 HOURLY RATE
    • 5.0
    • 422 HOURS
    • INDIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 6 TESTS
  • Asterisk/voip/a2billing/freepbx expert

    My time is my value. So when you choosing me you can expect that job will be done in short terms and perfect. I not like to do something that not need be done, i prefer use developed components and … more

    My time is my value. So when you choosing me you can expect that job will be done in short terms and perfect. I not like to do something that not need be done, i prefer use developed components and solutions. That not mean i can't do development. I working with different programing tasks for last 26 years. yes, from 6 y.o. I live in it. So i prefer do something new&interesting; I can handle all tasks from linux administration/virtualization upto end-user web for voip. Only task i never do - graphical design part. That is not my field, better hire someone else for design. I have university degree, working with asterisk from start of this project. Have developing experience with freepbx/trixbox&a2billing. I am one of contributor of a2billing.org trunk. Also i can work as mysql/postgres DBA, database architect, has experience with following languages: Perl Python PHP C/C++ Javascript SQL Prolog/Lisp,Forth. In voip i can work with callweaver, asterisk, opensips, kamailio. Developed modules for freepbx, elastix, trixbox, a2billing.  less

    asterisk opensips a2billing freepbx virtualization linux-system-administration sql amazon-ec2 mysql sip trixbox elastix perl c++ python php css html xml windows-administration postgresql paypal-integration centos openvz xen-hypervisor 00 more less
    • $66.67 HOURLY RATE
    • 5.0
    • 416 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • European system/VoIP administrator - Linux, VoIP, LAMP, Cisco, Amazon

    After 15+ years in system administration, I can say, I can help with any problem you could have. I was implementing clusters (http, asterisks, opensips), design and install high available infrastructure, finding bottlenecks in applications including resolution, design, install and … more

    After 15+ years in system administration, I can say, I can help with any problem you could have. I was implementing clusters (http, asterisks, opensips), design and install high available infrastructure, finding bottlenecks in applications including resolution, design, install and manage VoIP infrastructure with thousand of customers and mainly, bringing new ideas into life. Areas of knowledge: - Apache/HTTPD - installation, tuning, design of infrastructure - NGINX/HAPROXY - balancers, high availability infrastructure - PHP/MySQL - tuning for best throughtput - Asterisk - extensive administration for VoIP provider - Opensips - loadbalancing+high availability in voice services All this on Linux (Debian, CentOS, Ubuntu) and FreeBSD. - all type of clustering/virtualization - Xen, vmware etc. - all operations, scalability and high availability - Amazon/Rackspace - high available setups, hacks for automated deployment etc., about 50 instances under my management With all technologies, I was working with many companies, mainly from US and Canada. Everywhere, I was the person, on which main responsibility laid. My biggest advantage is, that I am working, until problem is not resolved - I am not blaming anybody, but working. Do you want to try it? Go ahead and drop me a line.  less

    apache-administration mysql asterisk opensips php nginx haproxy rackspace-cloudservers amazon-ec2 amazon-web-services 00 more less
    • $21.11 HOURLY RATE
    • 4.2
    • 4 HOURS
    • SLOVAKIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
  • VoIP Engineer

    I have 8 years of experience with VoIP. Troubleshooting of networks, VoIP networks and unix servers. SIP, MGCP, Linux Asterisk Opensips Vicidial goautodial Call centers setup VPS

    asterisk opensips vicidial voip-software sip network-administration call-center-management software-debugging perl linux-system-administration unix-system-administration technical-support technical-analysis 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 6 HOURS
    • PORTUGAL
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Telecom professional with 8+ years of experience

    -- A dynamic professional with 8+ years of experience in Business Analysis, Solution Architecting, Pre Sales, Technical Sales, Project Management, Delivery Management in Telecom verticals like VoIP, MVNO, GSM, VPN, Telecom Billing, OSS/BSS , Mobile Money, MNP. - Excellent knowledge in Architecting … more

    -- A dynamic professional with 8+ years of experience in Business Analysis, Solution Architecting, Pre Sales, Technical Sales, Project Management, Delivery Management in Telecom verticals like VoIP, MVNO, GSM, VPN, Telecom Billing, OSS/BSS , Mobile Money, MNP. - Excellent knowledge in Architecting different MVNO Models,telecom Billing, Baseline set-up, E2E VoIP Integration and Enterprise Reporting related issues. Technical Knowledge : - GSM - HLR, STP, GMSC, MSC, SS7, USSD, IVR, SMSC, GGSN, Load Balancing, prepaid and postpaid billing systems Cloud Based Architecture for MVNO, MNO. - MVNE – Implemented different Models of MVNE Architectures all over the world. - Telecom Billing – Siebel CRM, BRM, AIA, Andes, eTOM. - OSS/BSS Stacks. - VoIP – SIP protocols, Asterisks, Mobile Dialers, Transcoding , Codec’s handling, VoIP System Architect. - C++ Programming skills.  less

    opensips asterisk oracle-siebel-crm linux-system-administration symbian-development ios-development windows-phone blackberry-jde freeswitch mysql 00 more less
    • $44.44 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Technical Support Engineer, Manual Tester

    Technical Professional with 10+ years of IT experience in Client Server, LAN/WAN, Open Systems, Manual Testing and Enterprise Application Integration for hardware/software products. Quickly adaptable and able to multitask in the changing technical and Managerial atmospheres that are … more

    Technical Professional with 10+ years of IT experience in Client Server, LAN/WAN, Open Systems, Manual Testing and Enterprise Application Integration for hardware/software products. Quickly adaptable and able to multitask in the changing technical and Managerial atmospheres that are common in today marketplace. Highly motivated tech-support professional skilled in troubleshooting, analyzing and resolving complex technical problems, utilizing advanced resolution procedures.  less

    technical-support six-sigma nagios linux-system-administration apache-tomcat manual-testing opensips asterisk software-qa-testing sip amazon-web-services xen-cloud-platform 00 more less
    • $5.56 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
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