SIP Freelancers

Showing 60 freelancers

SIP Freelancers

Showing 60 freelancers

  • Asterisk/voip/a2billing/freepbx/kamailio 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
    • $67.77 HOURLY RATE
    • 5.0
    • 444 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • Independent Multimedia, Communications and Marketing Consultant

    Resourceful, Cooperative, Technology Orientated Multitasker and Motivated Self Starter with a Vast Amount of Customer Service, Sales and Technical Support Environment in a Call Centre (10+ Years) Setting and in Person. A Leadership Role Building and Maintaining a Strong, Loyal … more

    Resourceful, Cooperative, Technology Orientated Multitasker and Motivated Self Starter with a Vast Amount of Customer Service, Sales and Technical Support Environment in a Call Centre (10+ Years) Setting and in Person. A Leadership Role Building and Maintaining a Strong, Loyal, Satisfied and Educated Customer Base. Acquired Unique Skills Dealing with People from a Variety of Cultural Backgrounds, Range of Ages and Diversity Needs. Languages: English (Native), Greek (Fluent) and Spanish (Beginner) Skill Strengths Organized and Innovative Approaches to Tasks Efficient & Productive Service with Quality & Measurable Outcomes Ambitious and Open Minded - Can Do Attitude, with a Smile! Understanding Internal/External Customer/Business Requests/Needs Evaluating Information and Providing - Best Fit Solutions Informing Clients about Additional Value Added and Benefits by Up & Cross Selling Products and/or Services Educating Clients about Alternative Time Saving Channels of Service/Information Promoting Our Brand Name and Business and/or Industry Troubleshooting and Problem Solving Instilling Confidence to Clients Proactive Attention to Details and Excellent Photographic Memory Well Developed Technological Knowledge, Processes and Practices.  less

    web-design sales social-media-marketing database-management telemarketing brand-consulting sip 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 9 HOURS
    • CANADA
    • LAST ACTIVE
    • 18 PORTFOLIO ITEMS
    • 10 TESTS
  • I'm professionaly programmer from 1997 (started on Pascal/C/FoxPro). Other the years i've developed billing systems for mobile operator and ISP, websites and very specific VOIP services. I have configured and supported many of the FreeBSD/Linux … more

    I'm professionaly programmer from 1997 (started on Pascal/C/FoxPro). Other the years i've developed billing systems for mobile operator and ISP, websites and very specific VOIP services. I have configured and supported many of the FreeBSD/Linux servers using Puppet/SaltStack. At this time i'm developing WEB applications using Angular JS or other JS engines on frontend and PHP on backend. I'm have good skills in software design, Javascript/PHP/PERL/C and SQL languages, as well as TCP/IP, HTTP, SIP, H.323, RTP. VCS - GIT/SVN  less

    linux-system-administration javascript database-adminstration php puppet-administration postgresql ajax sip tcp-ip html 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 435 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Delphi,Web.NET, PHP, RoR, C/C++, Android, IOS, VoIp, OpenCV

    - I am programmer with over 15 years experience work in area IT software, Web development and Security network (All platform OS Window/Linux/MacOSX) - I am strong coding with languages programming (C/C++, Objective C, Java, Delphi/Pascal, Php/Perl … more

    - I am programmer with over 15 years experience work in area IT software, Web development and Security network (All platform OS Window/Linux/MacOSX) - I am strong coding with languages programming (C/C++, Objective C, Java, Delphi/Pascal, Php/Perl/Python/Ruby, Javascript/Applescript/Shell script, C#/VB.NET. - Delphi Programming: (Component, RemoteObject, Fastreport, Report Builder, Raise report, dbExpress, dataSnap, network, Firemonkey, crossplatform IOS, MacOSX, Window) - GIT/SVN in tracking and manage source code - Developing and using well with frameworks, opensource from .net, WinSDK, Linux SDK, IOS SDK, Social API(facebook, google, dropbox..etc), OpenCV, Forge, Image Processing, DSP, OCR, gstream, phonegap, - Web developement: Php, ruby, python, perl, NodeJS. Framework: joomla, wordpress, yii, Zend, drupal, SugarCRM, vTigerCRM,,,..etc. - Mobile/Smart device and Embedded development: Android, Linux Embedded, IOS, Window Mobile Embedded, Window Phone - IDE and tools programming(Visual Studio, Delphi IDE - all version, eclipse, Qt Creator, Netbean - Database programming: MS SQL(2000,2008, 2012), MySQL, MongoDB, NoSQL, BigData, postgreSQL, Firebird, Oracle - VoIP development: Asterisk, Softphone, WebRTC, Freeswitch, OpenSips, Elastix, FreePBX, A2Billing, XMPP, OpenFire, Call Center I joined to developing and completed many large project. i will show to you all previous my works.  less

    c++ pascal java c# .net-framework delphi android-app-development sip php javascript ajax html xhtml xml wordpress joomla drupal prestashop asterisk iphone-app-development computer-networking opengl opengl-es website-development linq linq-to-sql windows-administration database-management data-analysis mysql sql postgresql firewalls oracle-database crystal-reports jquery mootools google-app-engine amazon-ec2 facebook-api amazon-web-services windows-phone-7-development ios-development windows-app-development linux-system-administration windows-phone opencv opensips freeswitch windows-azure mac-os-app-development objective-c 00 more less
    • $15.56 HOURLY RATE
    • 4.9
    • 4432 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 17 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • 14 Yr Exp - C/C++ ,QT/VC++,COM,C Sharp, Rasp PI,Plugin,Dev Driver,SNMP

    I am a 14 year experienced Professional C/C++/C#.NET/Java/ASP.NET Developer with Design and Management Experience. My core competency lies in the end to end development of C++ (especially VC++ and QT C++) and C#.NET … more

    I am a 14 year experienced Professional C/C++/C#.NET/Java/ASP.NET Developer with Design and Management Experience. My core competency lies in the end to end development of C++ (especially VC++ and QT C++) and C#.NET based applications. I also have very good experience in managing a team of size 5 to 25. I am willing to work on both Fixed Price ( Milestone Based) as well as Hourly based Projects. The key skills which distinguishes me form other developers are given below. VC++/ATL/COM, Raspberry PI,Android, Device Driver, Video Streaming,DirectX, SNMP, Protocol Development, Plugin development, Plugin Frameworks, Artificial Intelligence,Video Analytics, Scientific and Engineering Software, Computer Interfacing software. RESUME ==================== => More than 14 years of commercial software development experience with exclusive focus on Client Server/ Networking/Graphics/Robotics Technology. => In-depth knowledge in developing softwares with tools and technologies like VC++, Unix/Linux C++, .NET , C#.NET, VB.NET, ASP.NET and Java.' TECHNICAL EXPERTISE ==================== => The key technical Architect behind the Shareware products, KTS InfoMate, VideoManager +, MoneyCare +, SalesMate +, KTS InfoMate, CampusMate + and other products (with Plug-in Support) developed with tools VC++, ADO, MFC and ATL => The key Architect behind the extensible Web Content Management and Backup system KTS webCloud developed with tools VC++,VC#.NET, ASP.NET and SQL Server. => Worked for fortune 500 companies and MNC clients like GE, HP, Fujitsu,Toshiba, Hitachi, ISO. End To End Software Products Development Experience ============================================ Digital Signage Management Software (Tools and Technologies VC++, COM, ActiveX, QT C++, C#.NET, Java, ASP.NET, Web Services, Android , Linux, Raspberry PI, Windows, SQL Server/ MySQL, MS Access, Cross Platform ) Personal Accounting Software (Tools and Technologies : VC++, MFC, ATL , COM) Point of sales Software (Tools and Technologies : VC++, MFC, ATL , COM) Web Content Management System Software Framework (Tools and Technologies : ASP.NET, C#.NET ) Time Table Creation Software (Tools and Technologies : VC++, MFC, ATL , COM) Video Rental Software (Tools and Technologies : VC++, MFC, ATL , COM) Campus Management Software: (Tools and Technologies : ASP.NET , MySQL) Software Skills: Software Product Engineering, VC++, ATL, COM, DCOM, MFC , ActiveX, DirectX, DirectShow, FFMPEG, FFDShow, Win 32, .NET, C#.NET, VB.NET, ASP.NET,ASP, AutoIT, Bugzilla, ISAPI, Boost, Device Driver, NDIS Driver, Printer Driver, ModBus TCP, ModBus Protocol, SNMP, CMIP, HTTP,SMTP, FTP, TFTP, HTTPS, RTSP, SAP, SIP, H 264, MP4, MPEG2, AVI, Video Streaming, Flash Streaming, RS 232, USB, Firewire, Image Processing, Packet Sniffer, Ethreal, Video Analytics, Object Tracking, Aforge.NET, Vehicle Identification, Medical Imaging, Optical Networking, Mathematics, Physics, Game Physics, Simulation, Scientific Software, Linux , Unix C++, ObjectStore, SQL Server, MySQL, MS Access, Web Services, SOAP, gSOAP, JSON, Compiler, Lex,Yac, ASM, Data Structure, Fiber Optics, Embedded System, Raspberry Pi, Plugins, Excel Plugins, Office Plugins, Word Plugins, Plugin Framework, PhotoShop Plugins, Photoshop SDK, 3DS Max Plugin, Intelligent Transportation Systems, New Port Stepper Motor, Galil Motion Controllers, CRO, EDBA, WDM, SONET, SDH, SEO, SEO Tools Development.  less

    c# mfc com atl directx wpf autoit asp.net java erp embedded-linux embedded-systems wamp php ffmpeg opengl j2me j2ee ftp smtp sip sap snmp tcp-ip ado.net ado sqlite mysql sql ajax soap xml-web-services linux-system-administration unix-system-administration win32-app-development c++ firefox-plugin-development xml-rpc xml driver-development game-development systems-development database-programming electronics teaching-mathematics google-analytics-api google-maps-api vba microsoft-excel core-java qt mac-os-app-development windows-phone seo internet-marketing perl javascript web-design computer-networking network-administration artificial-intelligence mono opencv openvpn amazon-web-services teaching-physics opengl-es mechanical-engineering mechatronics installshield inno-setup soapui ios-development android-app-development apple-xcode activex python 00 more less
    • $30.00 HOURLY RATE
    • 4.9
    • 736 HOURS
    • INDIA
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • Hosting Industry Sr Linux Admin w/ RHCE, RHCVA, MySQL DBA, developer

    For more than ten years I have worked extensively in the software development and hosting industries. I am an expert Linux and Unix system engineer, and can deploy and configure any software stack that is based on Linux for optimal … more

    For more than ten years I have worked extensively in the software development and hosting industries. I am an expert Linux and Unix system engineer, and can deploy and configure any software stack that is based on Linux for optimal content delivery. I excel at MySQL database design, optimization, and administration. I am a seasoned software developer and have extensive experience with many languages including Java, Python, PHP and Ruby. I also have significant experience with customizing, deploying, and adminstering open source web applications, application frameworks, and application servers. I have worked locally, overseas, and with colleagues and clients overseas via the internet. If you look at my work history here, you will note that i 'disappeared' in February 2011. Indeed I did disappear, I was in a very bad car accident in Bangkok, Thailand, where I was living at the time, and was nto able to get out of bed or use a phone or computer for roughly a month. I now reside in Austin, TX again full-time I do not disappear typically, my present and previous employers can confirm that if you are hesitant based on feedback from 2011.  less

    gtk-programming python unix-shell mysql php html ajax java ruby cpanel jboss lamp-administration perl resin plesk c# .net-framework css qmail drupal wordpress joomla spamassassin clamav apache-tomcat nginx linux-system-administration centos ubuntu squid asterisk sip vmware-administration virtualization postfix sendmail mail-server-implementation oscommerce solaris-administration freebsd magento zabbix nagios 00 more less
    • $36.67 HOURLY RATE
    • 4.5
    • 22 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
  • Embedded Services

    We at Energy Cloud, serve you for turnkey solutions, discrete solutions, solution integration, open source evaluation-customization-development, application development and porting in embedded engineering domain. Our technology reach in Embedded, ARM Cortex-M3, Embedded Linux, Free RTOS, Zigbee, Wireless sensor network, 8 … more

    We at Energy Cloud, serve you for turnkey solutions, discrete solutions, solution integration, open source evaluation-customization-development, application development and porting in embedded engineering domain. Our technology reach in Embedded, ARM Cortex-M3, Embedded Linux, Free RTOS, Zigbee, Wireless sensor network, 8 bit Microcontrollers, VoIP, RFID, M2M, GPS, Energy management with experienced delivery skill help you to achieve maximum throughput in every terms. We can work with you right from outlining your need to feasibility check, design, development, prototyping and testing to make you feel satisfied and proud yourself for choosing us. Our expertise: Languages: C, C++, Embedded C & C++, Matlab, XML, Javascript, Html Embedded OS: Embedded Linux, FreeRTOS Microcontrollers:TI Stellaris ARM Cortex-M3, AVR, PIC, LPC series 8 bit, 8051, CC2530 Peripheral: ADC, DAC, Watch Dog Timer,EEPROM, LCD, Keypad Sensors: Touch Button, Acceleration, Temperature, Infrared Technology: Zigbee, RFID, GSM/GPRS, GPS, Wireless Sensor Network (WSN) High level protocol: SIP, SDP, LDAP, TLS, SRTP, RTP, TCP/IP Low level protocol: Ethernet, USB, SPI, I2C, Chipcon Debug Interface, RS485, RS232, USART, PS/2 keyboard interface, RC5 and NEC infrared remote protocol. We are pleased because our customers have confirmed our belief that if the Services we offer is new, exciting, innovative and of excellent quality, they will be taken. We will be grateful to customers like you. Without you, there would be no reason to be pleased or proud. We welcome you for your orders and for giving us the opportunity to be of service to you in future.  less

    c++ embedded-linux sip embedded-systems c embedded-c electronics pcb-design 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 518 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Experienced C/C++/Objective C Developer/iPhone Application Developer

    Over the last 4 years, I have developed a wide range of projects using C, C++, Objective C, and Java. My core competency lies in iPhone Application Development. I have developed more than 15 major applications, including VOIP applications, social … more

    Over the last 4 years, I have developed a wide range of projects using C, C++, Objective C, and Java. My core competency lies in iPhone Application Development. I have developed more than 15 major applications, including VOIP applications, social networking apps, drawing apps and/or a few apps with custom UI and self management features. I have hands on experience in iOS Application Development. I have developed many live applications. - Expertise in iOS (6.x, 5.x, 4.x) - Expertise in xCode (4.x, 3.x) - Expertise in VOIP applications using PJSIP and Doubango. - Expertise in XMPP Framework. - Expertise in Facebook, Twitter and LinkedIn APIs - UIKit Framework - UIMapKit Framework - Addressbook Framework - QuartzCore Framework - CoreAnimation Framework - AudioPlayer/MoviePlayer Frameworks - Client‐Server communication - Database designing using SQLite - PDF document reading - Inapp Purchase integration - MessageUI and MailUI Frameworks - JSON and XML Parsing. - Using GET, POST and SOAP web services. - Using Gesture Recognizer and UITouch controls. - Customizing User Interface.  less

    sip socialengine c c++ linux-system-administration objective-c xmpp iphone-app-development 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 1512 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
  • VoIP/Asterisk/FreePBX/Cisco/Linux Specialist

    VoIP and network engineer/administrator with more than 6 years of experience in design, planning and implementation Unified Communication and IP centrex solutions, large scale telephone and Cisco data networks. Deep understanding of asterisk PBX, FreePBX, Elastix, SER and OpenSER … more

    VoIP and network engineer/administrator with more than 6 years of experience in design, planning and implementation Unified Communication and IP centrex solutions, large scale telephone and Cisco data networks. Deep understanding of asterisk PBX, FreePBX, Elastix, SER and OpenSER/Kamailio SIP servers. Fluent in SIP, SS7, IAX, RTP, T38, ISDN, STUN, SDP, Ethernet, TCP/IP, DHCP protocols, Cisco routing (BGP, OSPF), switching, LAN, WAN, ACL, QoS, VLAN.  less

    cisco-routers cisco-pix linux-system-administration sip asterisk freepbx elastix network-planning network-administration 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 1059 HOURS
    • AUSTRIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Inovative Mobile VOIP, Social, Audio/Video Streaming Developer

    I am an innovative, extremely detail oriented and perfectionist Software Development Architect, with expert knowledge in VoIP, audio/video streaming and processing, messaging and social media. My a little over 8 years of experience in VoIP industry gave me a … more

    I am an innovative, extremely detail oriented and perfectionist Software Development Architect, with expert knowledge in VoIP, audio/video streaming and processing, messaging and social media. My a little over 8 years of experience in VoIP industry gave me a strong knowledge of the protocols, technologies and available solutions. 3 years of successful mobile applications development, architect and project management gave me confidence in creating robust and technologically challenging applications. I am passionate about developing robust, innovative and leading edge applications, getting increasingly challenging assignments and applying disruptive technologies. Looking for a work on technologically challenging projects (in an agile environment preferably), while offering my expert knowledge base, ability to learn quickly and apply new techniques. I usually bid slower than others, because of reading the full job description, trying to estimate all requirements, needed technologies and solutions.  less

    ios-development iphone-app-development ipad-app-development cocoa android-app-development java voice-over voip-software sip video-streaming 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 25 HOURS
    • ARMENIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
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