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VOIP Administration Job Cost Overview

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

Upwork VOIP Administration Jobs Completed Quarterly

On average, 54 VOIP Administration projects are completed every quarter on Upwork.

54

Time to Complete Upwork VOIP Administration Jobs

Time needed to complete a VOIP Administration project on Upwork.

Average VOIP Administration Freelancer Feedback Score

VOIP Administration Upwork freelancers typically receive a client rating of 4.75.

4.75
Last updated: August 1, 2015
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  1. Arsen S.

    Arsen S.

    VoIP Administration & Development

    Bulgaria - Last active: 7 days ago - 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
    175 hours
    4.54
  2. Pavels J.

    Pavels J.

    Highly skilled C/C++/Linux server-side developer

    Spain - Last active: 7 days ago - Portfolio: 1

    Highly skilled C / C++ / Python server-side developer, with over 12 years experience. My area of interests is in developing high-available, multi-threaded, high-performance Linux network applications. I'm the lead developer, maintainer and the active participant of several popular OpenSource projects.

    $60.00 /hr
    2,470 hours
    4.77
  3. Max Topal

    Max Topal

    VoIP/Network/Linux Engineer

    Russia - Last active: 1 month ago - Tests: 3

    Over 8 years hands-on experience. I have deep knowledge on VoIP Hardware and softswitches from open-source one (Asterisk, Elastix, Askozia, Freepbx, CallBox, Trixbox, Welltime, Yeastar) to licensed (Switchvox, Panasonic, Mera, RTU) . I am providing Asterisk-based PBX installation\integration, support, troubleshooting and consultations. Fully manage the installation, configuration and troubleshooting of Linux servers * Install and configure Web Servers and MySQL, PostgreSQL * Install and configure customer scripts and programs * Monitor performance to identify and resolve issues using a suite of systems and tools. * Provide VoIP Security * Troubleshoot and resolve network, system, hardware and software problems. * Achieve quick fixes and / or long-term solutions as needed. I have more than 100 successful IP-PBX server deployments, so I am confident that you will be satisfied with my work completely.

    $20.00 /hr
    0 hours
    0.00
  4. Dmitry Sytchev

    Dmitry Sytchev

    Asterisk/Freeswitch/Kamalio expert, VoIP engineer, Linux administrator

    Russia - Last active: 1 month ago - Tests: 7 - Portfolio: 1

    I have more than 10 years of experience in installation and support of carrier-grade VoIP services based on Asterisk, OpenSIPS, Kamailio, Freeswitch and proprietary SIP/VoIP software. My professional interests are Callcenters, automated dialer systems and integration of VoIP software with company information flows. You can rely on my strong engineering and programming skills for projects starting from single VoIP server to a complete wholesale/carrier VoIP solutions including billing, call data analysis, security and fraud prevention. I have developed complete SIP solutions for VoIP carriers worldwide: Proxy/Registrars, IVR, prepaid systems, multi-tenant VoIP switches, hardware PSTN gateways (Cisco AS5300/5500, Audiocodes Mediant 2000, Quintum Tenor). I have experience in setup, administration and security of Asterisk, FreePBX, Elastix and FreeSWITCH PBX installations. As a programmer I use PHP, Javascript (both client-side using jQuery and Angular.js and server-side with node.js), Perl (system scripts/applications, Mojolicious webapps). I also have experience in development and administration of MySQL and Microsoft SQL Server databases. I'm experienced network engineer, skilled in routing and switching, general network architecture planning and deployment, network monitoring and security, including HA solutions (heartbeat/pacemaker). I use Zabbix and have some experience with Nagios and other monitoring software. I can also offer you consulting support in VoIP and network technologies.

    $33.33 /hr
    93 hours
    4.96
  5. Szabolcs S.

    Szabolcs S.

    VoIP specialist and Linux guru

    Romania - Last active: 3 days ago - Tests: 1 - Portfolio: 2

    Over the last 10 years I have managed a wide range of IT projects and provider grade infrastructures, including VoIP platforms, VPNs, Linux servers, firewalls. My main profile is Linux servers and building VoIP platforms with opensource components as Opensips, Asterisk, MySQL, Radius, CDRTool, Mediaproxy, RTPProxy. I also have experience in KVM virtualization, Cacti and Nagios monitoring.

    $15.00 /hr
    0 hours
    5.00
  6. Eldar A.

    Eldar A.

    Embedded Developer/Software developer and designer

    Bosnia and Herzegovina - Last active: 1 month ago - Tests: 4

    In the last 15 years I have come across and worked with multitude of technologies, but found my passion in software development. Over the course of my career I've done VOIP administration (Linux, Asterisk, SIP), worked on CLI applications, desktop bussiness applications (C#, VB.NET, VBA), maintained several web apps (PHP, CSS JQuery), but in the last few years I found my self doing embedded design and development (C/C++) for which I expressed biggest passion yet.

    $30.00 /hr
    0 hours
    5.00
  7. Kirill P.

    Kirill P.

    Asterisk Expert and System Administrator

    Russia - Last active: 2 months ago - 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
  8. Maqbul ahmed khan P.

    Maqbul ahmed khan P. Agency Contractor

    System Administrator | Consultant

    India - Last active: 11 days ago - Tests: 4 - Portfolio: 3

    Red Hat Certified System Administrator (RHCSA): * Expert with Linux, CentOS, Debian * Apache, PHP, MySQL, Varnish Cacheing server, Memcached configuration & maintenance * Experienced with AWS EC2, RDS, VPC, Load Balancer VoIP Engineer, extensive experience with: * Genband (Nextone) MSX * VoIPSwitch * Mera MVTS * GSM Gateways like Quintum, Grandstream * Softphone, IP phones like Xlite, Bria, PAP2T, Grandstream * SMS Gateways * Wholesale & retail calling card airtime business Technology Consultant: * Core software engineer, who understand the customer's requirement and dedicated to give the logical perfect solution. * Core expertise in PHP/MySQL Web programming * Experienced with C# .Net & MS SQL programming * Project Management * Team leading * Training * Planning business strategies * Open minded to learn new things

    Associated with: REFORM InfoTech Agency

    $27.78 /hr
    7 hours
    4.84
  9. James Kelly

    James Kelly

    Sr. Collaboration Engineer

    United States - Last active: 07/29/2014

    I have over a decade of experience with: * Video Conferencing * TelePresence * Voice over IP * WebEx My experience includes engineering, architecting and consulting within these areas.

    $110.00 /hr
    102 hours
    5.00
  10. Dmitry S.

    Dmitry S.

    Software Engineer/VoIP Expert

    Ukraine - Last active: 11 days ago - Tests: 2

    More than 20 years of hands on experience encompassing systems administrator, network administrator, software development for large scale server systems, web applications, mobile devices, embedded systems, etc. In my career I've touched almost every aspect of IT. Primary technical skills: - Linux administration, VoIP systems for heavily loaded call-centers. LAMP environment. - C/C++ in Linux environment, kernel-level programing - Java programming for Android devices - RoR web development I have a Master's Degree in Computer Science. Looking forward to hearing from you, Dmitry

    $15.00 /hr
    0 hours
    0.00