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Freeswitch Job Cost Overview

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

Upwork Freeswitch Jobs Completed Quarterly

On average, 10 Freeswitch projects are completed every quarter on Upwork.

10

Time to Complete Upwork Freeswitch Jobs

Time needed to complete a Freeswitch project on Upwork.

Average Freeswitch Freelancer Feedback Score

Freeswitch Upwork freelancers typically receive a client rating of 4.64.

4.64
Last updated: August 1, 2015

Popular Freeswitch Searches

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  1. Kirill P.

    Kirill P.

    Asterisk Expert and System Administrator

    Russia - Tests: 10

    I work on IT more than 12 years. VOIP/Asterisk Developer, Expert System Administrator and Network Administrator, Perl Programmer. Generally, I develop solutions based on Asterisk and speech technologies (speech synthesis and speech recognition systems), complex IVRs, integration with external sources and databases, custom click-to-call and callback systems, etc. I prefer custom development for Asterisk and FreeSWITCH. Usually, I use Perl for development. I have huge experience in solutions based on Asterisk such as FreePBX, Elastix, Trixbox, vicidial, etc. Also I support critical 24x7 systems, administration networks and servers, perform IT consulting, etc.

    $25.00 /hr
    10 hours
    5.00
  2. David Knell

    David Knell

    Senior telecoms developer/CTO

    United States - Tests: 2

    I've been developing software commercially for more than a quarter of a century, both as an employee of large organisations (IBM) and, to a greater extent, as my own boss. I've built and sold two businesses along the way, learning a great deal from having done so. My focus has been on telecoms. I developed TDM IVR systems based around Aculab and Dialogic cards in the late 1990s, and have, more recently, been involved in developing IP solutions using Asterisk, Kamailio and FreeSWITCH. These have included an IP Centrex platform (Asterisk and SER), a carrier-grade softswitch (FreeSWITCH) and various IVR solutions (Kamailio and FreeSWITCH). I'm fluent in a number of languages, including C, PHP, Perl, C# and Javascript, am happy to develop on Windows or Linux and have been using Agile development methods - in particular, release early and often - since before the term Agile was coined. I'm experienced with managing small teams of developers, and understand the importance of delivering the agreed product on time and within budget.

    $75.00 /hr
    3 hours
    5.00
  3. Luis Urrea

    Luis Urrea

    Telecom Engineer | VoIP Network Engineer | FreeSWITCH developer

    Costa Rica - Tests: 5

    I am a Telecom Engineer and Network Administrator with extensive experience in designing, implementing and maintaining mission critical network based systems. I worked for Cisco TAC for a little over 4 years providing high level technical support for Cisco Systems customers worldwide, diagnosing and resolving complex issues in small and large scale converged VoIP networks. My years of experience with multidisciplinary groups, and diverse network based equipment, using debugging tools and lab simulations have consistently trained my analytical skills and given me the required background to understand how systems work and therefore be able to provide solid recommendations and identify solutions that meet customer's needs. I am passionate about developing robust, scalable, distributable and fault tolerant communication systems and applications using the Erlang programming language. Programming proficiency in Erlang and Ruby.

    $38.89 /hr
    130 hours
    5.00
  4. 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

    $22.22 /hr
    76 hours
    5.00
  5. Alexander S.

    Alexander S.

    Alexander Savin

    United States

    Operating Systems MS Windows, Apple Mac OS X, Linux Networking Local Area Network (LAN), Wide Area Network (WAN), TCP/IP Hardware/Systems Cisco/Netgear Wired/Wireless Routers, Switches, Hubs (IPv4/6); Any kind of Servers (VPN, VoIP/SIP, SSH/Telnet, HTTP/FTP, DHCP, DNS, RDP, SMTP/POP3, Radius, XMPP, SQL); Firewalls; Tablets and Smartphones (Apple iOS, Google Android, MS Windows Phone); Scanners; Printers; UPS; Software MS Office suite; Wireshark; SSH/Telnet Apps; Antivirus suites (Kaspersky, Dr. Web, Symantec, McAfee); Adobe Photoshop suite; Browsers (Chrome, FireFox, Safari, Internet Explorer and etc); IMs/Voice (Skype, Jitsy, ICQ, GTalk and etc) Development Perl, Python, RegEx, Bash, MySQL, SQLite, HTML, CSS, Javascript

    $33.33 /hr
    0 hours
    0.00
  6. Arsen S.

    Arsen S.

    VoIP Administration & Development

    Bulgaria - Tests: 2 - Portfolio: 6

    I am focused in VoIP field only and I have been working here for more than 8 years. My Area of experiences: VoIP -Asterisk PBX: Full proficiency -FreeSWITCH: Full proficiency -Yate: Full proficiency -Strong knowlege of SIP protocol and SIP routers/proxy servers -OpenSER (Kamailio/OpenSips) -Load Balancing, Least Cost Routing, High Availability, NAT Traversal, Rate and billing systems, etc. -IVR and Auto Attendant Development -Secure VoIP: TLS, SRTP, ZRTP Full proficiency in free Billing/CDR solutions: -A2Billing: Full proficiency (configuration from scratch, customisation) -CDRTool (prepaid billing/accounting and sip tracing for OpenSIPS using RADIUS) -CDR-Stats (call detailed statistic/realtime stat for asterisk and freeswitch) -cgRates (billing for Freeswitch) I provide: - Development of custom Billing and software solutions for Premium Rate Numbers business. - HA and Scalability solutions for existing VoIP networks. - Development and optimisation of VoIP networks/projects. - Ongoing support via request/ticket tracker system. - VoIP Security and Hacker protection solutions. I have successfully completed large amount of commercial installations of VoIP PBX servers. From SOHO to Enterprise deployment including integration of various VoIP solutions into existing network environment. I also have experience in building of secure "bastion" VoIP/Linux servers. Payment Terms: Minimal support package 5 hours. Short-term hourly support: $50 For long-term support please contact for price options. For sizable development projects please contact for price options. We charge upfront scoping (roadmapping meeting, flat-rate). Hourly based projects: -Current hourly rate is $50. Price per projects/feature: -Fixed price projects are calculated based on the hourly rate and expected task complexity. -For all fixed price projects complete project specification with clear tasks description is required -For all fix price projects work will be started only after payment has been es-crowed and both parties have agreed with working terms.

    $55.56 /hr
    183 hours
    4.54
  7. Zhong W.

    Zhong W.

    Perl hacker and Voip Expert

    China - Tests: 5

    I have more than 8 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting two muti-tenant carrier pbx systems based thirdlane and FusionPBX which both have more than 500 concurrent calls and 3000 registrations extensions. I am able to coding with C/C++, Perl, PHP, shell, sql and other programming language. And I have done sucessfully about 30 jobs about voip system on upwork . I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies.

    $27.78 /hr
    2,521 hours
    4.72