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

VOIP Software Job Cost Overview

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

Upwork VOIP Software Jobs Completed Quarterly

On average, 49 VOIP Software projects are completed every quarter on Upwork.

49

Time to Complete Upwork VOIP Software Jobs

Time needed to complete a VOIP Software project on Upwork.

Average VOIP Software Freelancer Feedback Score

VOIP Software Upwork freelancers typically receive a client rating of 4.52.

4.52
Last updated: July 1, 2015

Popular VOIP Software Searches

Clear all filters
  1. Martin S.

    Martin S.

    VoiP

    Spain - Last active: 1 month ago - Tests: 1 - Portfolio: 1

    Hi, I´m a telecom entrepreneur and active in VoiP/SIP on a global scale. Since 1996 i`m into IT and have a broad knowledge of many techniques. Because of my global understanding i do not need to know every detail to be able to provide the best solutions. Im a strong conceptual thinker, I have an extensive network of experts available (i use them myself). So if u have a problem or project, i can have that arranged for you. Me and my team do anything telecom or VoiP, we are experts in Hosted VoiP and SIP troubleshooting. But we can help u with anything u may need, including development of apps, websites and IT problem solution. We are managing three Kazoo clusters and developing whapps for them. I am very busy, but its nice to have other projects in the course of a year next to your own. They keep you sharp, takes your mind of your specific tasks and are fun, most of the time.

    $66.00 /hr
    0 hours
    0.00
  2. Arsen S.

    Arsen S.

    VoIP Administration & Development

    Bulgaria - Last active: 1 day 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
    5.00
  3. 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
  4. Norbert V.

    Norbert V.

    C#, ASP.NET MVC, Java, Android, C/C++ developer

    Hungary - Last active: 11/12/2014 - Tests: 6 - Portfolio: 9

    I have been developing applications for 4 years in C#, ASP.NET MVC, Android, Java and C/C++. During this time I managed to get skills to write robust and optimal code in these languages and frameworks. I have a deep knowledge in networking concepts, protocols, VoIP technology and different database systems. I have worked with different Linux/UNIX systems and Windows so far. I used design patterns several times in practice, used TDD principles, set up continous integration and builder systems for larger projects. Why hire me: work efficiently, deliver on time, write maintainable code, provide good code analysis, learn new things fast.

    $24.89 /hr
    487 hours
    4.95
  5. Bazzi Ouissam

    Bazzi Ouissam

    network engineer

    France - Last active: 2 months ago - Tests: 9 - Portfolio: 1

    Bachelors of Networking Technologies,Over the last 5 years I have actively engaged in designing and implementing VOIP telephony related infrastructure which involved in installation, provisioning and commissioning of highly complex VOIP solutions using Asterisk, Elastix, Trixbox and Amazon AWS cloud telephony, Azure, HP Cloud, Rackspace and Digital Ocean Asterisk telephony installation. Provides call centre solutions using Asterisk, A2billing and Asternic. G729/G723 codec. I'm holding an industrial CCNA security, CCNA and CCNP certificates. I'm seeking opportunities to audit, build, configure or maintain a network for you or your business. I have experience in the following areas: Routing and Switching, Network Security, VoIP, VPN, Firewalls,IPS,IDS.

    $22.22 /hr
    0 hours
    5.00
  6. Zhang DeXi

    Zhang DeXi

    Native iPhone/Android and Xamarin Developer

    China - Last active: 1 month ago - Tests: 5 - Portfolio: 1

    Hello All! Over the last 6 years, I have been working on mobile application world, i had developed a lot of successful Mobile Apps. Especially Recent 3 years work was focused on social network project. I can support IOS programming as well as Web service programming simultaneously. Have developed 80+ mobile apps of following categories - Social networking: Like & share, Messaging service, Dating Service - Photo & Video: Filters, Mix, Editing, Sharing - Video Streaming: RTP, RTCP, RTSP - Geo Location navigation: Travel, Find near - Lifestyle: Fashion & Shopping I have strong skills in the following areas: Object C, xcode, storyboard, iPhone-app-development, iPad-app-development, android-app-development, Xamarin, dating, messaging, photo&video editing, photo&video sharing, In-app purchase, iAd, facebook, twitter, GPS, Parse, C#, JSP, SAP.NET, MVC 3

    $33.33 /hr
    26 hours
    5.00
  7. Jeremy Brainard

    Jeremy Brainard

    Seasoned IT Pro / Technology Enthusiast / CEH

    United States - Last active: 16 hours ago - Tests: 4

    I am an extremely skilled, motivated, and highly knowledgeable IT professional with 15+ years in the IT industry. I am also an EC Council Certified Ethical Hacker, and in addition to security services, I provide a vast array of technical solutions to both businesses and individuals. From network/server/workstation planning and implementation to advanced troubleshooting and traffic analysis, I am THE answer to your technical demands. Add to this the fact that technology isn't just my profession; it's my passion, and you will discover why my clients have been with me for years and wouldn't consider switching. I absorb and become well-versed at any issue thrown my way, and will get to the bottom of whatever roadblock I encounter. Who I am not: your average neighborhood tech geek, a rep from a fly-by-night shop, or someone sending proposals to any listing that appears. I choose my applications very carefully, and make sure I have budgeted enough time to complete the task required. I also do not apply for jobs that I'm not 100% certain I can handle. Due to these and many other reasons, I have built a solid name for myself locally, and will do so here as well. You'll be glad you chose to have done business with me, and I look forward to meeting your technological challenges head-on.

    $44.44 /hr
    94 hours
    4.79