Asterisk Consultants & Developers

Showing 310 freelancers

Asterisk Consultants & Developers

Showing 310 freelancers

Get Your Asterisk Project Started Today!

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 oDesk, 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 oDesk for free!

Asterisk Job Cost Overview

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

oDesk Asterisk Jobs Completed Quarterly

On average, 59 Asterisk projects are completed every quarter on oDesk.

59

Time to Complete oDesk Asterisk Jobs

Time needed to complete a Asterisk project on oDesk.

Average Asterisk Freelancer Feedback Score

Asterisk oDesk freelancers typically receive a client rating of 4.58.

4.58

Last updated: April 1, 2015

  • Software Architect and Developer

    I have been developing Asterisk based telephony systems for more then 8 years and have very extensive, more than 18 years, Linux development experience. I have provided Asterisk and OpenSIPS cloud based solutions that comprise both back and front-end components … more

    I have been developing Asterisk based telephony systems for more then 8 years and have very extensive, more than 18 years, Linux development experience. I have provided Asterisk and OpenSIPS cloud based solutions that comprise both back and front-end components and include complex dial-plans, IVRs and AGI scripts, in the following areas: - Hosted PBX applications - Conference bridge applications - Call Center applications - Intelligent Telephony load and stress test applications - Asterisk ARI - Asterisk WebRTC - REST API, OAuth 2.0 I have designed and developed Asterisk based Call Center system that is running on the AWS EC2 instances. This system is successfully integrated with the following platforms: - Proprietary CRMs - vTiger - Bigcommerce - Shopify - Nation Builder - NGP VAN I have very extensive customer support experience and good at writing user guides and developer API documentations. In addition I have a Project Management certificate.  less

    c php asterisk html javascript linux-system-administration amazon-ec2 opensips mysql ssl 00 more less
    • $38.89 HOURLY RATE
    • 5.0
    • 545 HOURS
    • CANADA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Expert in Asterisk, A2billing, Elastix and AWS, Cloud telephony

    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 … more

    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.  less

    asterisk network-administration computer-networking ssl a2billing elastix voip-administration freepbx amazon-ec2 linux-system-administration 00 more less
    • $16.00 HOURLY RATE
    • 4.9
    • 758 HOURS
    • SRI LANKA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux Administrator/Programmer.VOIP Expert (Asterisk based systems)

    Over the last 7 years I've been focusing on Linux based systems(Debian,Ubuntu,CentOS,Fedora etc). Install,maintain and troubleshoot voip,web,database,file servers(asterisk,apache,exim,postfix, mysql,ftp ...). I've a strong knowledge of network … more

    Over the last 7 years I've been focusing on Linux based systems(Debian,Ubuntu,CentOS,Fedora etc). Install,maintain and troubleshoot voip,web,database,file servers(asterisk,apache,exim,postfix, mysql,ftp ...). I've a strong knowledge of network protocols. Knowledge of web technologies:html,css,javascript,ajax. programming/scripting skills: C#,php,perl,bash,awk,sed. I have a strong background in voip,mainly asterisk based systems - asterisk,asterisknow, trixbox, elastix,freepbx,a2billing. Configuration IVR,predictive dialers,conferencing,voicemail etc. Dialplan and AGI programming. Ip phone/voip adapter configuration/management/troubleshooting(Cisco,Polycom,Linksys etc). Good knowledge of SIP protocol.  less

    linux-system-administration asterisk php voip-administration unix-shell cisco-ios network-security unix-system-administration firewalls 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 187 HOURS
    • GEORGIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 16 TESTS
  • Seasoned IT Pro / Technology Enthusiast / CEH

    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 … more

    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.  less

    asterisk voip-software voip-administration windows-administration microsoft-active-directory microsoft-exchange-server linux-system-administration citrix-xenserver embedded-linux 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 94 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Perl hacker and Voip Expert

    I have more than 6 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 … more

    I have more than 6 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. I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies. click here to know me more: https://click.2-call.me/apa1  less

    asterisk a2billing freeswitch perl linux-system-administration c++ 00 more less
    • $27.78 HOURLY RATE
    • 4.7
    • 2212 HOURS
    • CHINA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • VoIP Consultant [Asterisk, freeSWITCH, Kamailio, OpenSIPs, Vyatta]

    Since last 7 years now I'm involved intensely in end-to-end VoIP setups. That included pre-deployment 360 degree Architecture planning. Actual development of the projects, including aiding other teams develop the exact required component for the projects. And after deployment … more

    Since last 7 years now I'm involved intensely in end-to-end VoIP setups. That included pre-deployment 360 degree Architecture planning. Actual development of the projects, including aiding other teams develop the exact required component for the projects. And after deployment Support. My career objectives are to be a very flexible expert capable of working on almost any layer. Come up with intelligent solutions to help achieve business goals smartly. I'm proficient in following domains * VoIP * Server Administration * Network Administration I've experience in Following tools. * Asterisk * FreeSwitch * OpenSIPs * Kamailio * SEMS * Vyatta * MySQL * Linux OSs I've worked in following languages. * C++ * Perl * Php * Shell scripting Find More about Me from my VoIP Blog: http://saevolgo.blogspot.com  less

    sip asterisk linux-system-administration freeswitch opensips 00 more less
    • $60.00 HOURLY RATE
    • 5.0
    • 152 HOURS
    • CANADA
    • LAST ACTIVE
    • 15 PORTFOLIO ITEMS
    • 3 TESTS
  • VoIP Developer

    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 … more

    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!  less

    asterisk c# ajax javascript cakephp web-design website-development linux-system-administration database-modeling 00 more less
    • $23.33 HOURLY RATE
    • 5.0
    • 178 HOURS
    • NEW ZEALAND
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • System Administrator and VoIP Engineer

    I am very experienced(8+ years) linux administrator. Last year I worked with HA projects and have a good knowledge about right architecture of services. My Skills: Linux, Unix, OpenStack, Virtualization Deploy: Ansible(I created modules for it), Chef VoIP … more

    I am very experienced(8+ years) linux administrator. Last year I worked with HA projects and have a good knowledge about right architecture of services. My Skills: Linux, Unix, OpenStack, Virtualization Deploy: Ansible(I created modules for it), Chef VoIP: Asterisk, FreeSWITCH, OpenSIPS, Kamailio Web Servers: NGINX, Apache Databases: PostgreSQL, MySQL/MariaDB Scripting: Python, Bash, Perl, Ruby  less

    asterisk linux-system-administration unix-system-administration mysql erlang 00 more less
    • $24.44 HOURLY RATE
    • 4.9
    • 92 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 5 TESTS
  • Senior Linux Administrator / Virtualization /Asterisk / VoIP / cPanel

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Advanced Knowledge of Perl programming Network Administration Network Security (Penetration Testing) Server Auditing Technical Support … more

    I am a senior technical engineer who has 15 years IT experience in the following areas: Advanced Linux Cluster Administration Advanced Knowledge of shell scripting Advanced Knowledge of Perl programming Network Administration Network Security (Penetration Testing) Server Auditing Technical Support Virtualization (mainly Parallels Virtuozzo/openVZ/ProxMox) Web hosting Control panels such as cPanel,Plesk,DirectAdmin Tweaking and Optimizing Apache for better performance Hardening PHP Data recovery Asterisk/Trixbox/Elastix/VoIP solutions.  less

    linux-system-administration asterisk mysql cpanel whm centos samba apache-administration perl security nagios bash freepbx trixbox 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 6621 HOURS
    • EGYPT
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
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