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. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 4 days ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,654 hours
    5.00
  2. Max Ivanov

    Max Ivanov

    Russia - Last active: 4 days ago - Tests: 3 - Portfolio: 2

    My main principles are: result-oriented way of thinking, excellent technical base to solve any case, to talk human language with non-IT people, make software for people with neat look and clear UI. I am web developer with 15 years of experience programming PHP, different SQL flavors, Javascript, HTML, using related tools as PHP frameworks, jQuery, Prototypejs, content management systems, version control systems, graphic tools and Unix systems. I have proven experience in development for financial/insurance market. Also I am systems administrator with 15 years of experience managing networks, server infrastructures and data-center operations across multiple platforms (Unix, Linux, Windows) and vendors (Cisco, IBM, HP, 3Com, Avaya). Effectively plan, install, configure and optimize the IT infrastructure to consistently achieve high availability and performance.

    $30.00 /hr
    48 hours
    4.97
  3. Mohamed Zain

    Mohamed Zain

    Sr Linux Systems Engineer | Dev/Ops | Open source integration Engineer

    Egypt - Last active: 9 days ago - Tests: 10 - Portfolio: 3

    +7 years experience install / manage and operate linux servers on a high scale machines infrastructure , open source solution consultancy using Nginx / PHP-fpm,MySQL,Kannel SMS Gateway,Memcache/Redis, Couchbase ,ElasticSearch / Solr Nagios/lcinga/munin, Puppet, Chef, Bash Scripting, PHP, Ruby, Vagrant, Docker , Git, AWS , VOIP, Asterisk also i have experience in load&stress testing and security vulnerability assessment

    $25.00 /hr
    71 hours
    5.00
  4. Jack B.

    Jack B.

    Asterisk/VOIP/Vicidial/FreePBX/Elastix Expert | Technical Support

    Philippines - Last active: 2 days ago - Tests: 1

    Over the past 6 years, I have installed and configured a total of around 1,000 seats call center system with a maximum of 14 servers on one site using Vicidial on both standalone and multi-server setup. I have also installed and configured IPPBX systems, VOIP systems, GSM gateway systems and asterisk-based systems using FreePBX and Elastix ranging from small to medium business enterprises including integration of IPPBX to a legacy PBX(PABX) and to CUCM. My core competencies lies in Asterisk, Vicidial, GoAutodial, Vicibox, FreePBX, Elastix, Linux, SIP, IPPBX and PABX/CUCM integration, VOIP systems and GSM gateway systems. Installing and maintaining VOIP and call center systems remotely to my clients in the US, Singapore, Philippines, China, UK and Middle East has also helped me improved my skills and the way I deal with people especially in interacting and communicating with top management or owners of the business. With this, I'm seeking opportunities to install, develop, configure and support call center systems, VOIP systems and IPPBX systems from the ground up for you or your business. I have also experience in the following areas: - MySQL and Apache - Linux(CentOS, Redhat, Ubuntu, Opensuse, Fedora) and Windows Operating Systems - Microsoft Office applications - Basic to advance TCP/IP networking configuration - Basic to advance troubleshooting(system, software, hardware and networking) - SDLC, UML Diagrams and OOP diagrams - FTP - Remote desktop support - Firewall and linux/shell scripting - Softphones(Eyebeam, Bria Xlite Zoiper and Ekiga) configuration - IP Phones(Mitel, Polycom, Escene, Grandstream, Yealink, etc) configuration - Video Phones(Grandstream, Yealink, etc) configuration - Operator phone configuration - FXO/FXS gateway configuration - VOIP gateways(Dinstar, Grandstream, Audiocodes, Quintum Tenor, Digium) configuration - Sangoma/Digium/Atcom/Openvox card configuration(TDM/Analog, E1, E1R2, PRI/BRI, ISDN) - Multi-tenant IPPBX

    $33.33 /hr
    51 hours
    4.89
  5. Khizer Farooq

    Khizer Farooq

    Computer Systems and Network Engineer CCNA|MCSA|MCITP|OCP|ITIL|VMWARE

    Pakistan - Last active: 1 day ago - Tests: 13 - Portfolio: 13

    I have done Computer Systems Engineering, worked with different companies for three years and now starting to work as a full time Free Lancer. I have an extensive first hand experience of dealing with System Networks, Windows Servers ( 2003, 2008),2012 different vendors Internet management and security solutions ( Hardware and software) like Air Live 802.11G Internet Access Server, Sonicwall,WatchGuard , ISA 2006 server, GFI Web Monitor, HP Servers, Client and server OS. Other than professional experience I have done Worked in following virtualization software's VMware ESXi 5.0-5.5 Microsoft Hyper-V, Sun/Oracle Virtual Box. Other than professional experience I have done different International Certifications CCNA. MCITP Windows7 Enterprise MCSA Windows 7 MCTS. | Windows 7 MCTS. | Windows 8 PRO: Designing and Deploying Messaging Solutions with Microsoft Exchange Server 2010 OCP( Oracle Sun Solaris OS 10 System Administrator) ITIL Foundation. VTSP 5 I have successfully completed following projects, that were for IT Govt Sector and five star Hotel's Planning Designing and Establishing Network Infrastructure using Microsoft Operational Framework (MOF v 4.0),network consisted of 200+ clients and 20 + servers (HP Proliant ML-150, ML-350,Dell Power Edge 2900). Installation configuration and management of ISA Server 2006,Juniper SSG 5 working together, providing security solution for more than 100 static and 200+ dynamic clients. Automate the process for Management of Internet User Account for the users by Implementation of RADIUS Server In-house developed Software Application Up gradation of clients systems from Windows XP to Windows 7 . Up gradation of domain from Server 2003 to server 2008 Enterprise R2 .

    $55.56 /hr
    606 hours
    4.95
  6. Damian Z.

    Damian Z. Agency Contractor

    Experienced Software Engineer

    United Kingdom - Last active: 01/11/2014 - Tests: 12

    ========= 1500+ oDesk Hours - Excellent feedback - Good oDesk tests results ========= Years of experience of C++ (STL, Boost) and C#, Java, Python and Android programming, digital video quality estimation, IPTV Software Development, Asterisk and A2Billing system configuration etc. Digital TV and IPTV Specialist. Cooperation with Video Quality Experts Group. Participation in big commercial project for public safety monitoring - INSIGMA. Working in IPTV, DVB. Specialist of VoIP domain. Experienced in configuring and administration of VoIP system based on Asterisk and A2Billing. Good knowledge of video streaming technology as well as protocols and codecs used in digital video transmission: H.264, MPEG2-TS, MJPEG, RTP, RTSP, IGMP, UDP, SDP. Very good practical knowledge of Linux operating system: Debian, Ubuntu, CentOS distributions Experience in developing Android applications Experience with installing, configure and maintain platforms based on Amazon Web Services (AWS): EC2, S3, RDS, SES, EBS, Elastic IP, Mechanical Turk GStreamer API Experience

    Associated with: XMementoIT Agency

    $35.56 /hr
    1,692 hours
    4.97
  7. Owais A.

    Owais A.

    Unix/Linux Engineer, VoIP Consultant

    Pakistan - Last active: 2 days ago - Tests: 9 - Portfolio: 6

    I have sound knowledge & experience of various domains like: server-side scripting in (Python, Perl, Bash) Customized Asterisk development, FreePBX, Openser, E1, SS7, SIP, IAX Trunking, IVR dial plans, and configuration SMS, MMS, WAP gateways: Kannel, Mbuni Server and Network monitoring tools Network packet capturing, sniffing, server penetration testing, Wireshark and Scapy TCP/IP network design & troubleshooting Web Hosting Support WHMCS, WHM/cPanel BigBlueButton branding I am proficient with Unix/Linux platforms especially Debian and CentOS dedicated servers and VPS. Owing to my vast skill-set, I believe I can solve the most complex problems in my field and provide optimal solutions for all technical and engineering tasks.

    $20.00 /hr
    6 hours
    4.83
  8. Abhilash M.

    Abhilash M.

    6+Years Experience- Windows/Oracle/HP/Cloud Certified Infra Architect

    New Zealand - Last active: 4 months ago - Tests: 17 - Portfolio: 3

    6+ Years experience in : * BMC Tools Design/Installation/Configuration. * HP Tools : Certified Accredited Integration Specialist * Windows Administration * Oracle certified Solaris Administrator * ITIL V3 certified Process designer. * Web Programmer * PHP/MySQL expert.

    $27.78 /hr
    787 hours
    4.99
  9. Mohsen Hameed

    Mohsen Hameed

    Android, Embedded Programmer and Researcher

    United Arab Emirates - Last active: 12/09/2014 - Tests: 2 - Portfolio: 1

    I want to obtain a challenging position as a software developer in a company that will enable me to use my solid technical knowledge, strong embedded development skills and problem solving abilities. SPECIAL INTEREST: Design, Implementation of Software Mobile Application Development (Android, iPhone) Voice over Internet Protocol (VoIP) Telecommunication Networks

    $16.67 /hr
    348 hours
    4.98
  10. Rilke petrosky U.

    Rilke petrosky U.

    Web Developer / Ethical Hacker & Security Researcher / VoIP Expert

    Dominican Republic - Last active: 3 months ago - Tests: 6 - Portfolio: 4

    To serve mankind with my knowledge and skills obtained by a lifetime devoted to computer systems & technology and more than 15 years working with network security and ethical hacking. * Proficient in C / C++ as well as x86-Assembly, Javascript, Node.js, Ruby-on-Rails, Java and PHP. * Sharp Unix skills ( Solaris, Linux, BSD), from shell-scripting to kernel patching. System administration and process automation expert. * Hands on PSTN, Switching, PBX and VoIP knowledge. Business oriented CTI (Computer-Telephony integration ) expertise. * Reverse engineer binary code. Security vulnerabilities discovery for fun and profit. * I am a creative developer able to come with high quality solutions for uncommon problems.

    $28.13 /hr
    0 hours
    5.00