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OpenSIPS Job Cost Overview

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

Upwork OpenSIPS Jobs Completed Quarterly

On average, 5 OpenSIPS projects are completed every quarter on Upwork.

5

Time to Complete Upwork OpenSIPS Jobs

Time needed to complete a OpenSIPS project on Upwork.

Average OpenSIPS Freelancer Feedback Score

OpenSIPS Upwork freelancers typically receive a client rating of 4.87.

4.87
Last updated: September 1, 2015

Popular OpenSIPS Searches

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  1. alexander Merkulov

    alexander Merkulov Agency Contractor

    Asterisk/voip/a2billing/freepbx/kamailio expert

    Ukraine - Tests: 6 - Portfolio: 5

    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.

    Associated with: UA Prime Agency

    $67.77 /hr
    545 hours
    4.97
  2. Sergey P.

    Sergey P.

    VoIP and Linux Engineer

    Russia - 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

    $30.00 /hr
    76 hours
    5.00
  3. Thanh T.

    Thanh T.

    VOIP, Django developer

    Vietnam - Tests: 2 - Portfolio: 2

    I have more than 5 years experience in VOIP, as a system administrator, and a Django developer. I have done many projects relate to VOIP. I have developed some web conference, Web Portal, Commercial for VOIP service. Hosted PBX. I am very familiar with Asterisk, FreePBX, Freeswitch, FusionPBX, Kamailio, Siremis, Elastix, OpenFire, Trixbox, VICIdial, Newfies Dialer. I am very hard working and have strong knowledge in these technologies.

    $18.89 /hr
    76 hours
    3.70
  4. Yuriy N.

    Yuriy N. Agency Contractor

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

    Russia - 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
  5. Gohar A.

    Gohar A.

    VoIP Consultant [Asterisk, freeSWITCH, Kamailio, OpenSIPs, Vyatta]

    Canada - Tests: 3 - Portfolio: 15

    Since last 8+ years I'm involved intensely in end-to-end VoIP setups. That included pre-deployment 360 degree Architecture planning. Actual development of the projects, including aiding other teams develop the exact required component for the projects. And after deployment Support. My career objectives are to be a very flexible expert capable of working on almost any layer. Come up with intelligent solutions to help achieve business goals smartly. I'm proficient in following domains * VoIP Designing and Development * Server Administration * Network Administration * Securing VoIP deployments * Expert at SIP and RTP diagnosis and troubleshooting I've experience in Following tools. * Asterisk * FreeSwitch * OpenSIPs * Kamailio * SEMS * Vyatta * MySQL * Linux OSs I've worked in following languages. * C++ * LUA * Perl * Php * Shell scripting Find More about Me from my VoIP Blog: http://saevolgo.blogspot.com

    $60.00 /hr
    154 hours
    4.99
  6. Malay Patel

    Malay Patel

    VoIP/SIP Administrator & Developer

    India - Tests: 6 - Portfolio: 3

    Over the last couple of years, I have developed a wide range of IT solutions including VoIP, Web and Mobile development for small businesses and start-up companies as well as for large companies. Following are my area of experiences: -VoIP, SIP -FreeSwitch, ASTPP -Opensips -Kamailio -WebRTC -Asterisk, FreePBX, A2billing -Linux & Opensource Consulting -MySQL, PHP, Wordpress, Apache -Android I provide following services: - Development of custom VoIP solutions with ongoing support - VoIP networks/projects: development and optimization - High Availability and Scalability solutions for VoIP networks. - VoIP Security and Hacker protection solutions. I provide following solutions: -High scalable Least Cost Routing(LCR) with Fail-Over -Session Border Controller(SBC) -Click to call -Class4 & Class5 Soft Switches -SIP Proxy Server, SIP Messaging Server, SIP Redirect Server, SIP Load Balance & Fail-Over -IVR Application -Fax over IP (FoIP), T38 Supported FAX Server, FAX to Email -Shoutcast Server -WebRTC client -PHP RESTfull API , Web Services for Mobile Application -Web Applications -Mobile Applications. My core competency lies in complete end to end IT solutions for VoIP, Web and Mobile technologies.

    $25.00 /hr
    1,661 hours
    4.64
  7. Muhammad F.

    Muhammad F.

    Asterisk ,OpenSIPS, FreePBX, VTigerCRM, Kannel, Perl, Python, PHP,XMPP

    Pakistan - Tests: 3 - Portfolio: 3

    Over seven years of experience in designing complex telephony Systems using Asterisk, OpenSIPS and FreeSWITCH. - Implementation of OpenSIPS/Asterisk/Radius based telephony systems. - Implementation of various contact center solutions. - Google's Speech Recognition: text2voice and voice2text - vTigerCRM and Asterisk integration for callpopups. - Predictive dialer and progressive dialer. - Configuration of various TDM Gateways. - iOS/Android push messaging integration with OpenSIPS. - Realtime Rate web service for SIP Clients. Key Skills. Asterisk, OpenSIPS, FreeSWITCH, Kannel, FreePBX, Elastix, Genbend SIP Server, FreeRadius, Openfire XMPP. Perl, Python, PHP, Symfony

    $11.11 /hr
    13 hours
    5.00
  8. Karim Hamamo

    Karim Hamamo

    Network Security Expert

    United Arab Emirates - Tests: 2 - Portfolio: 1

    Infrastructure systems Engineer with almost 5 years of experience in the IT Field. Solid skills in complex infrastructure administration with good experience in scoping, project management and technical documentation. I have a keen interest in Information Security and opensource solutions. Specialties: Messaging &Collaboration Infrastructure (Office 365, Exchange server 2013/2010, Lync server 2010/2013). Security (RSA, SELinux, IPTables, Snort, Barnyard, Squid). Cloud Solutions (VMware, vSphere ,Hyper-v, Server visualization). Identity and Access Management Solution (ADFS). Management Solutions (SCVMM, SCDPM). Auditing solutions (SIEM, CISA). Storage: (Netapp, Snap-manager). Networking Infrastructure (Cisco Switches, access points and router, Juniper Firewalls, Sonus). Project Management: (PMP). Platforms: (Windows server, Linux Red Hat and fedora, Apple IOS, Cisco IOS, Juniper Junos) IT Support: (Desktops, Network printers, network devices, gateways, Servers, software, Group policies, mailbox).

    $15.00 /hr
    5 hours
    3.60