Browse SIP job posts for project examples or post your job on Upwork for free!

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

Clear all filters
  1. kashyap patel

    kashyap patel Agency Contractor

    6 Year Experience In VoIP,SIP,Asterisk,Elastix,VICI,A2Billing,Tribox,

    India - Last active: 19 hours ago - Tests: 6 - Portfolio: 9

    Installation Expertises in Asterisk, Freeswitch, vicidial, astercrm, A2billing, Free PBX, Elastic etc. IVR specialist in asterisk Advanced Dialplan in asterisk Useful and cost-effective phone management system planning & designing & installation Expertises in Digium, Sangoma, Openvox and other type of PRI & PSTN Card installation. Connecting Multiple Asterisk Server & Cloud Solution for asterisk Call centre setup using vicidial Advanced Voice broadcast system Training on Asterisk Advanced Call Recording Solution using Asterisk Specialties Asterisk, Freeswitch, vicidial,A2billing, Free pbx, elastic, PRI & PSTN card installation, call centre setup, Advanced IVR, Cloud solution using asterisk, training on asterisk, voice broadcast etc.

    Associated with: Kingasterisk technologies

    $16.67 /hr
    26 hours
    3.98
  2. Basit Azeem Sheikh

    Basit Azeem Sheikh

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

    India - Last active: 1 day ago - 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
    2,291 hours
    4.76
  3. Ruben Semerjyan

    Ruben Semerjyan

    Inovative Mobile VOIP, Social, Audio/Video Streaming Developer

    Armenia - Last active: 10 days ago - Tests: 2 - Portfolio: 1

    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.

    $25.00 /hr
    28 hours
    5.00
  4. George M.

    George M.

    Expert in VOIP, expierenced in Asterisk,webrtc2sip,sipml5, MVTS,jquery

    Ukraine - Last active: less than one minute ago - Tests: 6 - Portfolio: 9

    My web site is: www.a4business.com I am creating turn-key VOIP platforms for online bussines with WEB-site, different billings, rates setup, VOIP dialers, mobile dialers, DIDx provider integration, paypal online payments for Calling card business, DID and other. I have experience in Asterisk, Sysmaster/VoiceMaster brands (http://sysmaster.com). Demo: www.norfa.com, ( ask me for test PIN ) My video lessons: https://vimeo.com/user36231282/videos Also, I had big expierence with Nextone(, Asterisk, freeswitch, iTelBilling, iTelByteSaver, iTelSwitch, Billbery, Alepo, MVTS, a2billing, freepbx, opensips, kamalio, PHP programming (php-agi, css, jquery), Linux advanced administration, kernel, bash, perl, SQL database architecture: Mysql, MSSQL, Sybase, SQLite, PostgreSQL, Cacti, MRTG, RRD, WHMCS customization, system Backup/Restore schemes. Also I install everything which is needed for business - mail exchange servers (Zimbra, Zarafa, Roundcube Webmail), Ticketing CMS (WHMCS) and write custom modules for each.

    $25.00 /hr
    6 hours
    4.99
  5. Abdelghafour H.

    Abdelghafour H. Agency Contractor

    Network and Software developer

    Morocco - Last active: 6 days ago - Tests: 4

    I'm a network, software developer, I have consequent experience in LAN/WAN protocol's configuration (Cisco, OneAccess) and development, I worked also on setting up and configuring IPTV and VoIP platforms, I developed many WEB architecture using J2EE, Ruby On Rails and Python Django technologies. My goals through oDesk is to create a trust based network of clients with whom, I can have a long term relationship developing solutions that best suit their needs.

    Associated with: Teliteck

    $33.33 /hr
    1,068 hours
    5.00
  6. Sergey P.

    Sergey P.

    VoIP and Linux Engineer

    Russia - Last active: 1 day ago - Tests: 5

    OS: linux (gentoo, debian, centos ...), FreeBSD over 10 years using/administration Lang: perl, lua, shell (java, ruby, erlang studying) VoIP: asterisk, freeswitch, gnugk, kamailio/ser (over 7 year administration) PBX: Si2000 (v.5), Definity administration (SS7, ISDN) DB: mysql, postgresql Sec: DMVPN, IPsec, OpenVPN Publish: LaTeX

    $22.22 /hr
    74 hours
    5.00
  7. Yuriy N.

    Yuriy N. Agency Contractor

    Freeswitch/Asterisk/OpenSIPS/Kamailio/Linux/Network/VoIP Enthusiast

    Russia - Last active: 09/05/2014 - Tests: 1 - Portfolio: 1

    Telecom Software and Network Engineer more than 6th years in companies - communication providers. I have extensive experience with deploying a complete infrastructure of voip provider, using OpenSource telephony technologies such as freeswitch, asterisk, OpenSIPS\Kamailio, kazoo, etc. Mostly I'm dealing with emerging startups or with small but accomplished voip companies which want to improve\reorganize their infrastructure; create something new or fix some issue on their network. So it is main area but sure I can help with other projects that correspond to my list of skills.

    Associated with: Nasida

    $40.00 /hr
    1,118 hours
    4.97
  8. Pavel Stephan Munoz

    Pavel Stephan Munoz Agency Contractor

    VoIP & SMS Consultant - Very strong Linux, Java and Python skills

    Nicaragua - Last active: 6 months ago - Tests: 7

    Over the last years I have been feeling comfortable working remotely with LINUX servers via SSH sessions (text console), while managing ASTERISK, KANNEL (SMS Gateway) or writing WEB SERVICES scripts in both JAVA (ZK, PlayFramework) and PYTHON (Flask, Jinja2). I am skilled in many technologies such as TOMCAT, JBOSS, CGI scripting, AGI (for IVR apps), VIRTUALBOX and others. Used to ECLIPSE & PyCHARM. I love finding solutions to very complex requirements; I feel I do this very well. Researching and testing new technologies is something I totally enjoy. I would like to be involved in a project requiring our team to do lot of research while developing pioneering products (startups are welcome). If such project has good social impacts: much better! Improving quality of life for people around the globe using my skills would be amazing.

    Associated with: Central America IT

    $30.00 /hr
    160 hours
    4.54