VoIP Consultants & Developers

Showing 242 freelancers

VoIP Consultants & Developers

Showing 242 freelancers

  • iPhone | Android | iOS 7

    Quality Guaranteed I have more than 7 years of experience in developing Mobile Application Desktop Applicaton, web applications using iPhone,Android, Window 7 Mobile,WIndow 8 Metro, asp.net (vb.net , C#) , SQL server 2005 , SQL server 2008 , AJAX ,.NET … more

    Quality Guaranteed I have more than 7 years of experience in developing Mobile Application Desktop Applicaton, web applications using iPhone,Android, Window 7 Mobile,WIndow 8 Metro, asp.net (vb.net , C#) , SQL server 2005 , SQL server 2008 , AJAX ,.NET Frame Work 2.0,.NET FrameWork 3.5 ,.NET FrameWork 4.0 , Telerik Web Controls ,Crystal Reports ,LINQ , MVC 3,MVC4 . Web Services , WCF,WPF , Silver Light . I would like to work on challenging innovative work and committed to provide quality services and try to satisfy the client about the skill ,quality ,communication and time frame .  less

    iphone-app-development ios-development android-app-development apple-xcode sqlite 00 more less
    • $22.22 HOURLY RATE
    • 4.9
    • 1429 HOURS
    • INDIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 4 TESTS
  • 14+ years MSSQL MySQL PostGres VS.NET Delphi

    In many years of work, I have developed many applications designed to perform different tasks (banking software, time-attendance software, restaurants, tv and radio stations, communications, web sites, windows and web services, games), for a wide range of users (from individuals … more

    In many years of work, I have developed many applications designed to perform different tasks (banking software, time-attendance software, restaurants, tv and radio stations, communications, web sites, windows and web services, games), for a wide range of users (from individuals to over 1000 users simultaneously), unselfishly using the everyday news (Visual Basic and Delphi in a past time, C# and Java/Android lately). Web techniques like HTML, DHTML, .Net, PHP, etc. are also not unknown to me. As a support of the applications, they are based on RDBMS like MS SQL, My SQL, Oracle, and Firebird. In a several cases I have developed applications that communicate with external devices such as magnetic card readers, fiscal printers etc. In addition to these skills, I have experience with the processes of designing, testing, debugging and tracking applications or its entire lifecycle.  less

    sql stored-procedure-development c# microsoft-visual-studio delphi .net-framework 00 more less
    • $38.89 HOURLY RATE
    • 5.0
    • 1857 HOURS
    • MACEDONIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 8 TESTS
  • Systems/Server Administrator / Network Admin / IT Service Desk Analyst

    CAREER OBJECTIVE: To deliver with the highest efficiency the technical skills and experiences learned combined with personal values and desirable attitudes. Meet the client’s expectation and satisfaction towards company success. SKILLS: NETWORK SECURITY ADMINISTRATION: ** Proficient in Network Security and … more

    CAREER OBJECTIVE: To deliver with the highest efficiency the technical skills and experiences learned combined with personal values and desirable attitudes. Meet the client’s expectation and satisfaction towards company success. SKILLS: NETWORK SECURITY ADMINISTRATION: ** Proficient in Network Security and Network Problem Troubleshooting. ** Experience in configuring of High End Enterprise CISCO Routers, Summit Extreme L3 and Alcatel Switches. ** Strong knowledge in Network Configuration, VOIP and Network Design Infrastructure of LAN and WAN convergence. ** Strong knowledge in IP Addressing / Subnetting IPV4. ** Strong knowledge in Wireless LAN and 802.1x authentication network infrastructure. ** Strong knowledge in Routers with different Routing Protocols. SYSTEMS SUPPORT AND SERVER ADMINISTRATION: ** Experience in Windows Server 2008 & 2003 Active Directory Administration. ** Experience in Microsoft Exchange 2010 / 2003 Administration. ** Server Virtualization Experience ** Experience in Hyper-V, Hypervisor or Virtual Machine ** Experience in Symantec Backup Exec 2012/2010 and Symantec Endpoint Protection Manager. ** Experience in Amazon Route 53 Domain Management. ** Strong knowledge in Windows OS platforms, Wordpress and SonicWall. ** Strong Desktop Support troubleshooting skills (Hardware & Software). ** Knowledgeable in Citrix Administration. ** Software Installation of Anti-virus, Windows and Linux Red Hat platforms. ** Virus Removal and Prevention. IT SERVICE DESK SUPPORT (with ITIL concepts): ** 1st and 2nd line technical support; answering support queries via phone, email, remote and desk-side support. ** Maintained a high degree of customer service for all support queries and adhere to all service management principles. ** Take ownership of user problems and be proactive when dealing with user issues and to log all calls in the service desk ticketing system. ** Monitoring of ticket queue and ensure all request and issues are resolved in an efficient and timely manner. ** Set up, install and test PCs and peripherals for users. ** Served as technical resource to answer questions, identify needs, make recommendations, and carry out research. ** Maintained professional and technical knowledge by reviewing related professional publications. ** Undertake any other reasonable duties as requested by the IT Manager and Service Desk Team Leader. ACHIEVEMENTS: ** Completed and Passed Japanese Elementary 1 Course.  less

    security network-administration computer-networking japanese google-searching email-technical-support email-handling technical-support network-security wireless-network-implementation microsoft-exchange-server microsoft-hyper-v-server 00 more less
    • $5.56 HOURLY RATE
    • 4.9
    • 6652 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Java/C++/DB Developer

    7+ years experience in various projects. In my development practice I've worked on both desktop and web-projects where I've used different libraries and frameworks. I have experience in such areas: * as Java developer: Swing, SwingX, EJB 3, Struts … more

    7+ years experience in various projects. In my development practice I've worked on both desktop and web-projects where I've used different libraries and frameworks. I have experience in such areas: * as Java developer: Swing, SwingX, EJB 3, Struts, Spring, GWT, Hibernate, JDBC, JSP, XStream, Jetty, JUnit * as DB developer I've worked with MySQL, Firebird, MS SQL Server, PostgreSQL, H2. * as C++ developer: boost library, ability to write cross-platform code, MFC, Qt * worked with applications for project designing: Rational Rose, Visual UML, StarUML, Microsoft Visio. Good understanding OOP and data-store concepts. Also I have some experience in following areas: Microsoft .NET, Ruby on Rails, PHP and Python.  less

    j2ee sql c++ win32-app-development delphi gwt jboss java ejb 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 3287 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 11 TESTS
  • java spring, hibernate, oracle and ADF

    Over the last 5 years I have been working with different technologies, Java, Spring, Hibernate, Oracle, EJBs, Web Services, JSPs, and recently with Oracle ADF. Now I think its time for me to use all the amount of knwoledge I … more

    Over the last 5 years I have been working with different technologies, Java, Spring, Hibernate, Oracle, EJBs, Web Services, JSPs, and recently with Oracle ADF. Now I think its time for me to use all the amount of knwoledge I have achieved and go on my own way. I am trying to start working as an independent consultant using the skills I have to offer quality service.  less

    java j2ee 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 1146 HOURS
    • MEXICO
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 8 TESTS
    ASSOCIATED WITH:
  • whmcs expert developer

    I have 7 years of experience in WHMCS and WHMCS modules development ,whmcs theme customization , whmcs payment gateway modules, whmcs re-seller modules development,whmcs domain registrar, Whmcs + iphone app development , whmcs + wordpress . I have handled more then 100 projects and … more

    I have 7 years of experience in WHMCS and WHMCS modules development ,whmcs theme customization , whmcs payment gateway modules, whmcs re-seller modules development,whmcs domain registrar, Whmcs + iphone app development , whmcs + wordpress . I have handled more then 100 projects and have integrated many complex payment gateways.I have experience in creating multi language websites in WHMCS. Apart from Expertise in WHMCS I have strong hand in Asterisk , PBX , VOIP, a2billing as well. There are lots of modules that I have created and customized in a2billing. I love programming and I am always eager to take new challenges. I have also developed websites in Joomla, Wordpress and core PHP with MySql. I have also developed web applications for Real Estate and Multi Level Marketing.  less

    whmcs cakephp payment-gateway-integration whm a2billing asterisk freeswitch payment-processing paypal-api authorize.net django-framework api-development youtube-api api-documentation ios-development 00 more less
    • $15.22 HOURLY RATE
    • 4.5
    • 3690 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 5 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Expert IOS, Android developer,Web Developer,Cloud Webservices, 10+ yrs

    I am a highly motivated, diligent and committed developer in developing many kinds of mobile and desktop applications seeking for opportunities. Over the last 10 years, I have developed a wide range of social networks including sites for start up … more

    I am a highly motivated, diligent and committed developer in developing many kinds of mobile and desktop applications seeking for opportunities. Over the last 10 years, I have developed a wide range of social networks including sites for start up companies and small businesses. My main objective is to provide excellent service, with timely, accurate, and professional results With More than 8 years of professional experience working within all stages of app development life cycle I am interested in capturing effective communication through high quality applications to further business goals. Through my work I create mobile applications that stand out ,communicate and reinforce brand recognition. My work aims at creating a difference from others by being competitively active in the market and by keeping a sharp eye on the trends of markets. My core competency lies in complete end-end management of a new business development project. I have an Excellent experience with IOS (iPhone, iPad, Universal applications) and Android development achieved through execution of multiple app creation in several domains like Photo sharing and video sharing applications, Dating, Gaming, Telecom and Social Networking, image processing, location awareness, GPS, location based applications, Google Maps APIs, Parse SDK, Push notifications, In app purchase, Image filters, Camera API based controlling and programming for IOS and Android, Customized applications . My skills and experiences are following: - iOS (iPhone/iPad) Application Development - Social Media Applications like Facebook, Twitter - Cloud server deployment - Location Based Applications - Google Map Service - Push Notification by using APNS - MySQL, SQLite, HTML5, PHP - Web Design (HTML4/5, JavaScript, PHP5) - Web Service  less

    c c++ iphone-app-development sql ibm-db2 stored-procedure-development localization gps-development google-maps-api facebook-api twitter-api tumblr mobile-app-development business-process-modelling apple-xcode cocoa cocoa-touch objective-c foursquare-api augmented-reality html5 opengl-es image-processing animation bluetooth ios-development ipad-app-development 00 more less
    • $16.67 HOURLY RATE
    • 4.7
    • 4341 HOURS
    • INDIA
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 8 TESTS
    ASSOCIATED WITH:
  • System Administrator/Scripts Write/Cloud Expert/Security Consultant

    Hi there, I am a 30 years certified System Administrator you wish getting help from : I am an LPI(101 & 102),RHCE certified, Automation king!! I have rich experiences in a wide range of software and systems over the last … more

    Hi there, I am a 30 years certified System Administrator you wish getting help from : I am an LPI(101 & 102),RHCE certified, Automation king!! I have rich experiences in a wide range of software and systems over the last 15 years, the most notable skills are : 1-Linux System Administartion : I have installed, configured, repaired, and managed so many Linux systems (more than I can remember) since 2006. I started with Fedora, then centos and ubuntu. 2- Scripting (My Favorite!) : I do enjoy very much with scripting especially for automation purposes, and I am very experinced with it, on both linux (bash) and windows (autoit - batch). I can automate all the tasks even those that don't talk to the command line in windows. I made for example in past, a fully unattended Windows installation CDs that is fully customized to include all the software my customers need without asking single question ! and on Linux I use Bash scripting Language to handle almost every aspect of linux and I did wrote so many scripts for various tasks. 3- Hosting Services : I have installed and managed previously many control panels for hosting and administration, that includes Cpanel, Plesk, ISPconfig, Webmin, Usermin, AWS, DigitalOcean, rackspace, cloud providers and more ! and in addition to that I can run the hosting services directly myself with no need for a control panel. I managed standalone software like : Apache, MySQL Server, ws-ftpd, proftpd, lighttpd with fast cgi, thttpd, dovecot, postfix and other servers ! I can also build/manage any hosting services, including shared hosting, VPS and dedicated servers. 4- VPN Services: I have installed and configured many servers that provided VPN services, including PPTP and OpenVPN services. I have even created a custom control panel for the customers and link it with automation scripts I wrote to better help the client managing his customers. (see the following picture): http://img687.imageshack.us/i/screenshotrsl.png/ And besides I am the solo developer of vpnplatform (vpnplatform.org/team) ;) and my clients consider me the best VPN guy on odesk. 5- Figting Malware: I can get your windows box clean even from the hidden malware and spyware trojans. I can secure your box and keep it safe and protected. I have fought malware since 2001 achieving great results like : cleaning big networks from viruses and worms and keeping it up and running in hostile environments for months with almost no downtime ! Also, I've built an app I called (Automated Malware Wizard), that would backup clinets hard drives and then GUARANTEE the cleaning of them, then update their software to close any possible vulnarables. I can customize it to you to fit your needs (If you intend to run a malware-cleaning and maintainance firm/utility). 6-Networking : I've been an ISP CEO before, and delivered internet services for more than 200 local subscriber when I worked at Hamad ISP. 7- VOIP: I am familiar with Asterisk and Asterisk GUI Installations, from scratch to fully working installation ! 8-Virtualizaion : I am very good with VMware and VirtualBox, I used them for years as a combination with hosting services. 9-Managing Mailing lists : I can manage your Email lists and make it away from SPAM lists by playing fair and square, I managed lists before, some of them got thousands of subscribers, I can clean the list also of all invalid/outdated subscribes by catching all email bounces using (my experience was with phplist script). 10- PHP/MySQL : I can develop web pages using a mixture of several technologies including html/css/php/mysql/javascript. And Finally, I can perfectly read, write and talk English Language and you can contact me over email, sms or mobile ! I perfectly speak English Language. I am ready to move to your job location if needed. I respect my work and give it every effort I can while keeping job's secrets secured and not to be shared with any 3rd party. You may see my attached C.V. and my odesk profile at: https://www.odesk.com/users/~~9b6150fc1d75d477 Note: I can adjust my availability time to suite your needs. Best wishes Ahmad  less

    openvpn virtualization virus-removal technical-support network-administration ubuntu centos winautomation-scripting autoit asterisk bash security vpn arabic translation-english-arabic translation-arabic-english mail-server-implementation sendmail email-technical-support linux-system-administration computer-maintenance dns vmware-administration squid php mysql jquery css html java paypal-api network-security adobe-dreamweaver bash-shell-scripting wireless-security 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 1095 HOURS
    • PALESTINIAN TERRITORIES
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • Django developer with IP Telephony Experiences

    In one sentence, i am a Django developer with IP telephony experiences. you can hire me if you need to implement a distributed VoIP enabled service that is ready to scale. i am also doing newfies-dialer customization and maintenance for a long while. and also i will take projects like PBX, IVR, autodialer development.

    freeswitch codeigniter twilio-api plivo django-framework python 00 more less
    • $36.67 HOURLY RATE
    • 4.4
    • 1223 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 1 TEST
    GROUPS:
    ASSOCIATED WITH:
  • Certified MS SQL Server/ C#/.NET/ MVC Developer

    Core Skills: * Excellent understanding of Software Development Life Cycle * Excellent understanding of the .NET 3.5, 4.0 Frameworks. * Excellent understanding of the ASP.NET MVC 3 Framework. * 7+ years of experience with MS-SQL 2005/2008 (stored procedures, table creation … more

    Core Skills: * Excellent understanding of Software Development Life Cycle * Excellent understanding of the .NET 3.5, 4.0 Frameworks. * Excellent understanding of the ASP.NET MVC 3 Framework. * 7+ years of experience with MS-SQL 2005/2008 (stored procedures, table creation) * Strong organizational skills and attention to detail. * Excellent knowledge of OOP principles and design patterns. * Excellent communication skills, both written and verbal. *Ability to think creatively, produce ideas, and recommend solutions that can be expressed visually and explained eloquently to project stakeholders * 7+ years of formal web application development in .NET (C#/VB.NET) * 7+ years of experience with ASP.NET * 3+ year of MVC development * 5+ years of formal experience with HTML, CSS, JavaScript, AJAX and browser compatibility issues  less

    asp.net c# mysql .net-framework html asp.net-mvc xml xhtml html5 sql linq microsoft-sql-ssrs ado.net telerik jquery javascript microsoft-silverlight entity-framework wcf windows-azure sql-azure linq-to-entities test-driven-development payment-gateway-integration architectural-design oracle-database ajax microsoft-visual-basic java jquery-mobile soap rest jsf eclipse java-servlets-development jsp jpa extjs css dts linq-to-sql devexpress asp database-design 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 9522 HOURS
    • INDIA
    • LAST ACTIVE
    • 15 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
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