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SIP Job Cost Overview

Typical total cost of Upwork SIP projects based on completed and fixed-price jobs.

Upwork SIP Jobs Completed Quarterly

On average, 33 SIP projects are completed every quarter on Upwork.

33

Time to Complete Upwork SIP Jobs

Time needed to complete a SIP project on Upwork.

Average SIP Freelancer Feedback Score

SIP Upwork freelancers typically receive a client rating of 4.51.

4.51
Last updated: August 1, 2015

Popular SIP Searches

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  1. Sherwin D.

    Sherwin D.

    VoIP Expert / IP-PBX Specialist / Asterisk Ninja

    Philippines - Tests: 4 - Portfolio: 17

    Over 12 years hands-on experience. i have a great knowledge on VoIP Hardware and Applications from open source softswitches, MultiTenant PBX and predictive dialers (Asterisk, Freepbx, FusionPBX, BlueBox, Thirdlane, FreeSwitch, A2Billing, Elastix, Trixbox, Vicidial, GoAutoDial, etc), to licensed softswitches (Voipswitch, Nextone, Voicemaster, PortaOne, Mera, etc) and other VoIP gateways. I have at least currently total of 500 IP-PBX server deployments and also do provide VoIP termination services. I work as a part-time consultant for a number of VoIP companies in the Philippines. I have a broad knowledge about networking and wireless. this includes routers, firewalls, access points and VSAT. I also do hardware/software troubleshooting and web designing (joomla and wordpress) and basic programming (php, html and perl) I am confident that i can deliver any work satisfaction guaranteed

    $33.33 /hr
    2,182 hours
    4.99
  2. Junaid Rehmat

    Junaid Rehmat Agency Contractor

    Experienced C/C++/Objective C Developer/iPhone Application Developer

    Pakistan - Tests: 3 - Portfolio: 5

    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.

    Associated with: AgileOne

    $20.00 /hr
    1,512 hours
    5.00
  3. Basit Azeem Sheikh

    Basit Azeem Sheikh

    OCPJP, Expert in Spring/Hibernat/Java/JEE based Projects

    India - Tests: 6 - Portfolio: 10

    I am having 7+ years of professional experience in Design and Development of Java Technology based Desktop and Web Applications starting from Requirement Gathering phase to Testing and Delivery Phase. I have worked with giants like Tech Mahindra, Ericsson etc. as Software Engineer. My Skill set include - Core & Advanced Java, J2EE, Spring (All Modules), Struts 1&2, MVC 1&2, JSP, Servlets, JSTL, EJB, JSF, SIP Servlets, Web Services, Hibernate, MySql, Oracle, PL/SQL, JQuery, AJAX, DHTML, GWT. I worked extensively on many servers like JBoss, Sailfin/Glassfish, Tomcat, Weblogic on Windows and UNIX environment. I extensively worked on Eclipse and Netbeans and well aware of many Eclipse plug-ins like Debugger, JUnit, SVN/HG Plugin, WTP etc. I have good experience is SCM packages like GIT (GitHub, BitBucket), SVN, Mercurial (Hg). I am well versed with several build tools like MAVEN, ANT.

    $27.78 /hr
    2,493 hours
    4.76
  4. Nikolay R.

    Nikolay R.

    Software Developer

    Russia - Tests: 4

    My main skills are: - Operating systems: Windows, Linux, iOS - Programming languages: C/C++, PHP, Java, ActionScript 3.0, JavaScript, Ruby. - Protocols: IP, TCP, UDP, SIP, SDP, RTP, RTCP. - Tools: MS Visual Studio, Eclipse, phpMyAdmin, XCode, ANTLR, Sikuli. - DBMS: MySQL, PostgreSQL. - Libs and APIs: Flex 4.0, Cocos2d-x, jQuery, WinAPI, Alternativa3D, SDL, WebRTC, Rails. - VCS: Git, SVN

    $27.78 /hr
    0 hours
    5.00
  5. Vahram M.

    Vahram M. Agency Contractor

    Expert of Streaming Technology for iOS | Android | WP

    Armenia - Tests: 4 - Portfolio: 2

    My profession is: SIP, RTP, RTMP, XMPP protocols; VP9, VP8, H.265, H.264, Opus, Speex, AMR, GSM, G.7xx Video and Voice encoding and transmission; OpenFire, Red5, Asterisk, OpenSips Servers; TLS, SSH, RSA security; TCP and UDP sockets, Tunneling, TCP over UDP. My experience in software development is 15+ years. Last 6 years I am working in mobile application development, especially with Video Chat, Audio Calling, Instant Messaging and other Multimedia solutions.

    Associated with: Be Interactive

    $35.00 /hr
    6,500 hours
    4.79
  6. Raoul W

    Raoul W

    I am a mobile app developer

    Sweden - Tests: 2 - Portfolio: 10

    Hello, Sir. I am a passionate mobile app developer with 5+ years rich experience. I am developing mobile apps since the first iPhone GPS tracker in April, 2010. I have several iOS and Android devices and developed apps compatible with all devices. Over all these years, I have accomplished amazing mobile projects successfully. Here is my skills and experiences in mobile development. - location tracking by GPS on iPhone/Android - Integrate Map using Apple MapKit and Google Map API - find location by geolocation - chat & message engine by XMPP Protocol - voice / video call using SIP Protocol - video streaming by HLS Protocol - photo / video processing - e-Commerce solution integrated with payment gateway - local and push notification As a skilled mobile developer, I will provide professional advice and perfect development solution. There is no problem to build mobile app with any idea or sketch. Thanks.

    $49.99 /hr
    43 hours
    5.00
  7. Amit Sharma

    Amit Sharma Agency Contractor

    Senior Android Specialist

    India - Tests: 5 - Portfolio: 3

    More than 6 years of experience in software development. Created complex back-end management systems including content management, e-commerce, customer relations and communication interfaces. My name is Amit. I am currently working as a Lead Android Developer at CS Soft Solutions. I am an expert in the following mobility solutions: 1) Making your website iPhone/ Android/ Smartphone compatible using responsive design 2) Developing iPhone apps (including guidance through Apple’s approval process and business consulting) 3) Developing Android apps (including guidance through Google’s hoops and business consulting) Please review my technology skill chart for your assessment. Programming Languages: Java, C/C++, ASP.NET, JavaScript Mobile platforms : Android, iPhone Mobile Knowledge : Custom UI, Internet, Games Development, Databases, Multimedia, Maps & Location-Based Services, Messaging, Facebook Android SDK, Flurry Network protocols: SOAP, JSON, XML Development Tools: Eclipse, Net Beans, Git, Subversion, SVN Development methodologies: Agile/Scrum, Waterfall Operating Systems: - Microsoft Windows - DOS, - Linux, - OS X, - MAC OSx Databases: - MySQL, - PostgreSQL, - SQLite Applications: - Photoshop, - Dreamweaver, - Word, - Excel, - Access Others : - MapKit, - FB connect, - Twitter,Foursquare, - Web Services, - Push Notifications , - Camera, - Web synchronization, - GPS, - Quartz, - Instrument Testing - and Memory Leak Prevention etc. I love to solve problems. I am a hardcore coder. I hope you give me a chance to talk to you.

    Associated with: CS Soft Solutions Pvt. Ltd.

    $18.00 /hr
    594 hours
    4.29
  8. Rahul S.

    Rahul S.

    4 years of experience in Mobile/Web and ecommerce Technologies

    India - Tests: 6 - Portfolio: 2

    I've a rich expertise in web development and designing and here you can see my skills for the same: I'm a professional expert in PHP and all its CMS & Frameworks such as 1) Wordpress: Developing & Designing Websites from scratch, Customizing themes & Plugins. Also expert in creating woo-commerce websites including responsive design. 2) Magento: I have worked in Magento 1.4,1.7,1.8. I can create a perfect Ecommerce store using this CMS.Websites from scratch and customizing,maintaining websites. Good experience in creating extesnions with large functionalities. Mobile apps: IOS+ANDROID, creating wireframes, mockups. Marketing: Seo,Google adwords, PPC, analytics. I have 3+ years of experience in ASP.NET/C#, and 2.5+ years of extensive javascript and jQuery development. My skills include building .NET sites from the scratch, writing custom modules, their maintenance and migration. Experienced with Real Time web development using HTML5 web sockets, XMPP and SIP modules. Extensive knowledge of C/C++ and Objective C. Good working knowledge of Assembly language and great Interest in Hardware Interfacing programming. Experienced in Low Level Programming like OS modules and writing device driver and port programming. --- Waiting for the Opportunity to Work with you---

    $13.50 /hr
    28 hours
    5.00
  9. Jin B.

    Jin B.

    iOS/Android Mobile eCommerce App Developer

    China - Tests: 3 - Portfolio: 3

    I have developed many mobile applications with photo/video sharing and social networking(FaceBook, Twitter, linked in and so on), front-end and back-end Web Service, management DataBase(sqlite,..), service based on location using GPS/Google Map, fitness app, audio/video streaming services. My expertise in Deliver the Quality of Apps in Required Time Frame. My key skills and abilities include (NOT limited to) + Text messaging and video/voice chatting - XMPP, OpenTok, Pusher, APN, VOIP/SIP + Networking framework - AFNetworking, Web RTC, Socket.io TCP/IP + iOS SDK (Foundation, UIKit, Core Data,AVFoundation, MoviePlayer,Quartz Core,Core Animation, etc) and iOS programming languages (X-code, Swift, Objective-C) + Map integration(GPS Location) /Google Map API, MapKit Framework + e-Commerce payment system - Paypal, Authorize.net, Stripe, Saleforce, card.io + ad serving or ad network SDKs (iAds, Google admob, etc) + Web service integrating - JSON RESTful API, Parse.com, especially integrating with ROR + Team Work - SVN, GitHub, Bitbucket + Various library development using C/C++

    $33.33 /hr
    335 hours
    5.00