Asterisk Consultants & Developers

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Hire a skilled freelance Asterisk developer to build multi-protocol, real-time communications applications solutions for all your needs. Experienced Asterisk contractors can set up predictive dialers, call centers, VoIP gateways, conference servers, IP PBX systems and other applications.

Asterisk is a popular open source framework for building communications applications. The platform uses scripting languages to create business phone systems, conference bridges and other communications protocols and technologies. On Upwork, the world’s largest online workplace, companies hire Asterisk experts to handle all their communication needs.

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

Asterisk Job Cost Overview

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

Upwork Asterisk Jobs Completed Quarterly

On average, 52 Asterisk projects are completed every quarter on Upwork.

52

Time to Complete Upwork Asterisk Jobs

Time needed to complete a Asterisk project on Upwork.

Average Asterisk Freelancer Feedback Score

Asterisk Upwork freelancers typically receive a client rating of 4.59.

4.59
Last updated: May 1, 2015
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  1. Jehanzaib Younis

    Jehanzaib Younis

    VoIP Developer

    New Zealand - Last active: 15 days ago - Tests: 3

    Heya a VOIP Developer here with more than 6 years of industry experience. I have developed inbound/outbound/predictive dialing solutions, PBX solutions for many clients. I develop custom VOIP applications they fit to your business enviroment. I develop custom API's plus the API integration of existing solutions. If you need database administration or backup solution just give me a buzz. cheers!

    $23.33 /hr
    178 hours
    5.00
  2. Mohamed Fahim

    Mohamed Fahim

    Expert in Asterisk, A2billing, Elastix and AWS, Cloud telephony

    Sri Lanka - Last active: 3 days ago - Tests: 4

    Over the last nine 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, A2billing, Elastix, Asternic, PIAF, 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 installation also Genband C3, Genband G9, Genband T800, Genband S3, Nextone VOIP Support.

    $16.00 /hr
    760 hours
    4.91
  3. Ambika P.

    Ambika P.

    VoIP,SIP,Asterisk,FreeSwitch,Opensips,Kamailio, Linux,MySQL,PHP,Apache

    India - Last active: 3 days ago - Tests: 6 - Portfolio: 5

    Over the last 4.5 years, I have developed a wide range of IT solutions including VoIP, Web and Mobile development for small businesses and startup companies as well as for large companies. I have experience in VoIP, FreeSwitch, Opensips, Kamailio, Asterisk, FreePBX, A2billing, Linux, Opensource Consulting, MySQL, PHP, Joomla, Android, asp.net-mvc, c#, .net-framwork etc. I have developed class4-class5 Soft Switches, SIP Proxy, FAX Servers, Fax2mail, Fax over IP, Messaging Servers, Session Border Controllers, IVR application, Web Applications and many others. My core competency lies in complete end to end IT solutions for VoIP, Web and Mobile technologies.

    $25.00 /hr
    1,502 hours
    4.58
  4. Asher S.

    Asher S. Agency Contractor

    Product Manager, Software Architect, Cloud & SaaS Architect

    United States - Last active: 05/19/2014 - Tests: 19 - Portfolio: 3

    [Background] I have worked as a consultant to various companies worldwide in high-tech IT related sectors such as Cloud & SaaS, Mobile eCommerce, Automotive & more. [Vision] I believe in working with the best of the best. I am looking for new challenges where I'm given a chance to build something new, creative and completely mind blowing. [Expertise] Over the 14 year span of my career, I have accumulated expertise in the following areas: - New Product Development - Operations research & management - Social Media Marketing & Strategy - Business Development - Information Security - Big Data & Analytics - Mobile App Development - Start ups - Anything and everything cloud related - Software Architecture for large scale applications And of course, I am familiar if not an expert, in all technologies such as Java, Ruby, PHP, .NET, SQL, NoSQL, Unix, Linux, Windows, AWS, VMWare, Xen, Asterisk etc.

    Associated with: ClickStrat Agency Agency

    $80.00 /hr
    4,027 hours
    5.00
  5. Thiago M.

    Thiago M.

    Java/Perl/ Linux/Voip/Asterisk/Opensips

    Brazil - Last active: 09/22/2013 - Tests: 1 - Portfolio: 1

    Last 14 years I worked as Internet Provider admin, with linux and perl in Brazil. I worked for 2,5 years as Voip Engineer with asterisk, openser and opensips in Australia. Worked for 1,5 years in Japan with Flex, now, I'm back to my home in Brazil, with my family working with Flex and Java at my new company a00s.com. We make software ERP to manage money and accounting for business companies. At my free time I like to discovery things by programing, some times with stock markets, some times like now, looking for math formula for prime numbers. I'm looking for some freelance job to increase my incomming, Once I want to go again to japan in this 2013.

    $27.78 /hr
    418 hours
    4.99
  6. Alexander Petrenas

    Alexander Petrenas

    Russia - Last active: 04/18/2013 - Tests: 22 - Portfolio: 2

    I've always thought, that business goals of a company should be the main reason behind everything else. While being an experienced developer myself, I saw many projects fail, because of the wrong priorities, but as a technical expert I couldn't do anything about wrong business decisions made during the planning phase, no matter how skillful I was in my duties. To prevent possible failures, I started contributing my skill and expertise during the earlier phases of development. Soon, I was the one, who actually proposed the ways to compete against rivals and assured, that they were realized correctly. So now, my prime job is business consulting and project management, but I'm still participating in interesting projects to be in touch with all new technologies over there.

    $20.00 /hr
    5 hours
    5.00
  7. Jeremy W.

    Jeremy W.

    Microsoft Lync 2010 / 2013 Architecture and Engineer

    United States - Last active: 07/28/2013 - Tests: 3

    15+ years of Call Center and IT experience. Engineering and project management on Avaya 8700, 8300, G3, Gsi platforms, all Avaya remote gateways, as well as ISDN and SIP trunking with various carriers. Non-Avaya PBX experience also includes Cisco and Asterisk, as well as Audiocodes media gateways and SBAs, as well as AcmePacket SBCs. Architecture, deployment and maintenance of Microsoft OCS 2007 R2 and Lync infrastructures. Strong focus placed on root cause analysis, incident documentation and effective end user communication in adherence to ITIL V3 standards.

    $80.00 /hr
    1 hours
    5.00
  8. Shemeka W.

    $15.56 /hr
    2,487 hours
    4.49
  9. Gregg V.

    Gregg V. Agency Contractor

    If my team can't do it, you don't need it (experienced buyers only!)

    United States - Last active: 06/10/2012 - Tests: 21 - Portfolio: 8

    If you don't have IT or software project experience, please don't contact me (unless you're a trusting adventure-seeker :) Bring Your Own Designer! IT Industry Knowledge Includes: - Best-practice Design & Implementation - B2B & B2C e-commerce - Systems Automation - BPR/Workflows- SaaS/Web 2.0 - Cobranding Vertical Industry Knowledge Includes: - Real Estate, Construction and Manufacturing management systems - Insurance (workflow) - Digital Media (distribution and conversion automation) - Healthcare (data collection & management) Some Background Information: - I have designed, implemented, and administered a wide variety of m$ft infrastructures, operating systems, servers, and applications for over 10 years. - I manage Apache, NFS, Samba, Asterisk, Bind, and other services on Red Hat-esque (CentOS, Fedora) servers. - I have been working with .Net since it was in beta. Before getting into C#, I used VB.Net for several years. - I've been writing enterprise-scale business and data layer code for over 4 years. - I've been managing and programming Microsoft SQL Server since version 6.5 (and am up to date on 200X), and Microsoft Access for many years. - I've worked with MySQL/SQLite and PHP (4+) as a hobbyist for several years. I can perform most any task required to update an existing site, but am probably not suited for a new development project in PHP.- Prior to .Net I programmed in traditional asp using VB Script, COM & DTC. - I manage my own dedicated windows 2k3/8 servers with multiple running applications and servers. - I have experience with a wide variety of third-party components and controls., and can assist in integration, middleware, queuing services, etc. - I'm not a graphic designer, and prefer to leave site layouts and graphics to someone more suited to that type of work. I am ok with creating basic layouts (and working within the popular graphics editing programs), but for a polished look, I'll either work with your designer or contract to another party on your behalf to acheive the look that you're after. Getting What You Pay For: Sure, you can find loads of developers here and on other similar service sites at a fraction of my rates. Why would you pay me? - I will stand behind my work. If you're unhappy, we'll fix it. - I will not charge for time spent figuring out how to solve general technical problems. If I don't already know how to implement a relevant solution, I will spend MY time researching and figuring it out. We're supposed to be professionals, and if we don't understand what the problem is, we shouldn't be charging you. Besides: each time I solve a unique problem, it makes me more effective; for you, me, and my next happy client! NOTE: Most of my work is done for companies' internal intranet, operations and LOB applications. I've added a few items to the portfolio, but please ask me about the other work which I can't showcase. While I'm often bound by NDA/Confidentiality agreements, I can explain more about my background in a general way than is illustrated publicly.

    Associated with: eService Partner Agency

    $75.00 /hr
    1,668 hours
    4.72