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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.

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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, 61 Asterisk projects are completed every quarter on Upwork.


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 4.57.

Last updated: July 1, 2015
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  1. Mahfuzul I.

    Mahfuzul I.

    Expert Java Developer in Telecommunication and Other Domain

    Bangladesh - Last active: 09/08/2014 - Portfolio: 2

    7+ year in Software and Telecommunication field. Vast experience in solution customization in java,j2me,Android, MS visual studio.Net,open source. Already developed solution for network programming handling TCP/IP, UDP, SNMP, SMPP,SOAP, XML,FTP, SIP,SMS etc. For telecom customization: Mediation, Raing,Billing,Real Time charging,Inter connectivity.

    $55.56 /hr
    9 hours
  2. Ahmad Hamad

    Ahmad Hamad Agency Contractor

    System Administrator/Scripts Write/Cloud Expert/Security Consultant

    Palestinian Territories - Last active: 3 days ago - Tests: 6 - Portfolio: 2

    Hi there, I am a 32 years certified System Administrator/Programmer/Developer/Project Manager you wish getting help from : I am an LPI(101 & 102),RHCE certified, Automation king and Mobile/Desktop/Web Developer!! I have rich experiences in a wide range of software and systems over the last 15 years, the most notable skills are : 1-Linux System Administartion : I have installed, configured, repaired, and managed so many Linux systems (more than I can remember) since 2006. I started with Fedora, then centos and ubuntu. 2- Scripting (My Favorite!) : I do enjoy very much with scripting especially for automation purposes, and I am very experinced with it, on both linux (bash) and windows (autoit - batch). I can automate all the tasks even those that don't talk to the command line in windows. I made for example in past, a fully unattended Windows installation CDs that is fully customized to include all the software my customers need without asking single question ! and on Linux I use Bash scripting Language to handle almost every aspect of linux and I did wrote so many scripts for various tasks. 3- Hosting Services : I have installed and managed previously many control panels for hosting and administration, that includes Cpanel, Plesk, ISPconfig, Webmin, Usermin, AWS, DigitalOcean, rackspace, cloud providers and more ! and in addition to that I can run the hosting services directly myself with no need for a control panel. I managed standalone software like : Apache, MySQL Server, ws-ftpd, proftpd, lighttpd with fast cgi, thttpd, dovecot, postfix and other servers ! I can also build/manage any hosting services, including shared hosting, VPS and dedicated servers. 4- VPN Services: I have installed and configured many servers that provided VPN services, including PPTP and OpenVPN services. I have even created a custom control panel for the customers and link it with automation scripts I wrote to better help the client managing his customers. (see the following picture): And besides I am the solo developer of vpnplatform ( ;) and my clients consider me the best VPN guy on odesk. 5- Figting Malware: I can get your windows box clean even from the hidden malware and spyware trojans. I can secure your box and keep it safe and protected. I have fought malware since 2001 achieving great results like : cleaning big networks from viruses and worms and keeping it up and running in hostile environments for months with almost no downtime ! Also, I've built an app I called (Automated Malware Wizard), that would backup clinets hard drives and then GUARANTEE the cleaning of them, then update their software to close any possible vulnarables. I can customize it to you to fit your needs (If you intend to run a malware-cleaning and maintainance firm/utility). 6-Networking : I've been an ISP CEO before, and delivered internet services for more than 200 local subscriber when I worked at Hamad ISP. 7- VOIP: I am familiar with Asterisk and Asterisk GUI Installations, from scratch to fully working installation ! 8-Virtualizaion : I am very good with VMware and VirtualBox, I used them for years as a combination with hosting services. 9-Managing Mailing lists : I can manage your Email lists and make it away from SPAM lists by playing fair and square, I managed lists before, some of them got thousands of subscribers, I can clean the list also of all invalid/outdated subscribes by catching all email bounces using (my experience was with phplist script). 10- Web Development using PHP/MySQL : I can develop web pages using a mixture of several technologies including html/css/php/mysql/javascript, and I've been using this skill more and more recently. 11- I have Oracle Databases, android and Java programming experience. And Finally, I can perfectly read, write and talk English Language and you can contact me over email, sms or mobile ! I perfectly speak English Language. I am ready to move to your job location if needed. I respect my work and give it every effort I can while keeping job's secrets secured and not to be shared with any 3rd party. You may see my odesk profile at: Note: I can adjust my availability time to suite your needs. Best wishes Ahmad

    Associated with: Palmtree Geeks, Hamad IT Agency, Holol Agency

    $20.00 /hr
    1,120 hours
  3. Mauro Fujihara

    Mauro Fujihara

    iOS, C# Software Developer

    Japan - Last active: 6 months ago - Tests: 6 - Portfolio: 6

    I have more then 12 years of software development experience. In this time I worked with a wide range of different technologies like .Net, Java, Objective-C, PHP, MySQL, MS SQL, Linux, FreeBSD and Asterisk (VoIP). I am also a Microsoft Certified Technology Specialist whose specialization is .NET based windows form development, Zend Certified Engineer and Java Certified Programmer. My objective is mutual profitable cooperation with smart people. I achieve this by developing software.

    Groups: Microsoft Certified Professionals, Zend Certified Engineers

    $27.78 /hr
    0 hours
  4. Loganathan Pichaipillai

    Loganathan Pichaipillai

    Windows Server admin [ AD, Exchange ]

    India - Last active: 16 days ago - Tests: 14 - Portfolio: 1

    • Involved Migration of exchange 2007 to 2010 • Exchange 2010 installation, configuration and troubleshooting • Disaster Recovery Planning and implementing Exchange 2010 for different location • Install and configure VMware Esxi 5 • Designing, Implementing and Administering Microsoft Windows Active Directory Services Infrastructure • Create a scalable thin client solution with Terminal Server • Install and configure Symantec backup exec 2010

    $10.00 /hr
    0 hours
  5. Jon M.

    Jon M.

    Senior Sales Engineer

    United States - Last active: 04/18/2014 - Tests: 7

    The age old adage of you get what you pay for has always been true of many products and services but this has never been more relevant than using oDesk freelancers. I originally singed up for oDesk to hire a freelance developer to build an application. After going through 3 different freelancers and spending over $2000 on a relatively simple app I quickly realized these discount freelancers were not able to meet my expectations. That is why I created a freelancer profile and started offering my services as an American contractor. I am located in the United States and can be contacted by phone Monday thru Friday from 9am-6pm Eastern time. I can provide phone support when needed and this is a huge advantage of working with a United States based contractor. I am currently using my IT and engineering background as a senior sales engineer selling and presenting technical products to IT departments, IT directors and C level executives. I have no problem talking to clients in person, on the phone or doing product demonstrations over a webex. I enjoy selling solutions to clients problems and showing them the value in a product. I am also involved with the marketing of products to help promote and generate leads.

    $55.56 /hr
    29 hours
  6. Prakash A. Agency Contractor

    Development - Linux, Embedded Linux, RTLinux, Android & Opensource

    India - Last active: 06/02/2014 - Tests: 1 - Portfolio: 3

    Provide best/quality solutions for client's requirements on Linux, Embedded systems, Embedded Linux, RTLinux, OpenSource and Android mobile platform.

    Associated with: ethics Technologies

    $20.00 /hr
    0 hours
  7. Faisal Ahmad Khan

    Faisal Ahmad Khan

    Executive VoIP/Network Engineer

    Pakistan - Last active: 5 months ago - Tests: 4

    Working as Sr. VoIP Developer / Engineer in a Software House: Job Responsibilities: - Administration, Configuration, Implementation and Managing VoIP Servers(Asterisk, OpenSIPs, FreePBX, FreeRADIUS) - Configure OpenSIPs, F5, HAProxy for load balancing and high availability of Media Servers. - Perform Troubleshooting Tasks on Amazon EC2 and NAT related issues like (one way muting, two way muting etc). - Deployment of SMS Gateways (KANNEL) and SMS Campaigns Handling. - Configuring and Troubleshooting Billing Servers and AAA servers (FreeRADIUS) - Smooth Development of IVRs & RBT using Asterisks AGI in PERL with MySQL and Redis Databases. -Job at Wateen Telecom as an Executive VoIP Engineer:- Working in Wateen Telecom Pakistan as an Executive Engineer CORE network operations and responsible for smooth running of VOICE Networks. -2 years of Working on the LIVE CLASS-4 & IPCC network of Wateen LDI having Millions minutes of traffic volume. -Providing back office support for LIVE C4 & IPCC Network supported by VOIP (Voice over IP) and TDM networks. Job Responsibilities as an IPCC Engineer 1. Providing O&M to UCCE/UC based Contact Centre of one of the Pakistan’s leading GSM companies, Warid Telecom. 2. Troubleshooting day to day problems in voice networks and resolve them. 3. Responsible for proactive and reactive maintenance 4. Interacting and resolving critical network issues in collaboration with Cisco TAC and handling escalated issues at customer sites. 5. Network Monitoring with Cisco’s RTMT and Solar Winds. 6. Configuration of Route group, Route List, Route Pattern, Hunt List, Hunt Pilot, Hunt Group, Calling/Called Party Transformations, different calling privilege levels, Block list as per customer requirement 7. Configuration of Voice Interfaces like ISDN PRI/ SS7 E1 8. Configuration and deployment of Cisco IP Phones Series: 794x, 796x, 797x, 9971 9. Performing resiliency exercises as per schedule in lean business hours 10. Hands on experience in live network on Voice Gateways with SIP, MGCP and H.323 configurations, Gatekeepers, SIP Proxy Server, Cisco Catalyst switches, ICM 8.x, Cisco Unified Communications Manager 7.x and 8.x, SLT & SS7 PGW, Cisco CVP 8.x, CTIOS 8.x, PGs. 11. Good basic understanding of switching – VLAN, Voice VLAN, VTP, STP, PoE, Ether channel, HSRP, Routing Protocols Job Responsibilities as a Class 4 Engineer -Working on the LIVE Class-4 network of Wateen Long Distance International system (LDI). -Providing technical support to VOICE NOC for VOIP (Voice over IP) and TDM networks. -Performing operation and maintenance tasks on the International Gateways to maintain a set of quality of service (QOS) for international routes. -Routing international traffic based on commercial requests and technical needs. -Hands on experience specially on routing & translations on different soft switches like SONUS,NEXTONE & ODINE. Media Gateway, Signaling Gateway, Policy Server (PSX), EMS. -PSTN trunk groups, IP trunk groups, E1s, CICs & channels, Static calls, SS7 signalling Links, Routes, Labels, Numbering plans, IP Interconnects etc. - Implementing VoIP & TDM Interconnections to National and International carriers and destinations. - Perform troubleshooting for problems showing irregular network KPI’s and enhance the network performance and efficiency. -Implementing the emergency services and helplines like 911, 15, 1217 etc on soft switch end. - Manual testing on national/International routes on the request of routing & commercial teams to verify QoS. -Complete analysis of ACD/ASR Reports and Call Data Records (CDRs) & their attributes.

    $14.00 /hr
    0 hours
  8. Clay Reiche

    Clay Reiche Agency Contractor

    PHP,PERL Coder/Web Services Integrator

    United States - Last active: 08/04/2010 - Tests: 6

    I have been successfully self employed since 1999 providing various IT related services. I started out as a Network Administrator for a Heavy Civil Construction Company in Tampa, FL providing network and desktop support to a corporate office of 75 users. I became the IT Manager of this company and oversaw several successful projects. When this company was purchased by a group company, I became an IT Specialist implementing a wide area network and a VOIP system that spanned the globe. In addition, I was responsible for managing the global team of IT staff positioned at various corporate offices and construction job sites. Since 2006 my main focus has been split between web programming and VOIP implementations with Asterisk PBX systems. My most recent accomplishment was integrating an LMS (Learning Management System) with the Magento, open source, shopping cart, giving my client the ability to sell online training courses through a very robust e-Commerce experience. On the Asterisk front, I have recently completed training for an open source predictive dialer application. This application is also very robust and used in many call centers around the world. Although most of my work these days is in programming and VOIP, I still have several desktop support customers and provide top notch service. I invest annually in LogMeIn Rescue ( This is an industry leading Remote Desktop Support Tool and the only remote support package I have found to work flawless on every occasion. The fact that I am very personable, highly technical and have extensive experience managing projects, means that I am uniquely qualified to tackle almost any IT project on schedule and with a high level of technical quality. Thank you for reading and good luck with your project!

    Associated with: Clay B Reiche

    $100.00 /hr
    0 hours
  9. Alex C.

    Alex C.

    Network and System Administrator

    Romania - Last active: 3 days ago - Tests: 4

    Level 3 support for various customers. Technologies: MS Windows 2003/2008/2012 Linux (CentOS) MS Exchange 2003/2007 2010/2013 BlackBerry Enterprise Server Plesk, cPanel SonicWall Firewall, Cisco, Fortigate VPN Tunnels Network Load Balancing and High Availability IIS, Apache, Tomcat DNS Server MAC OS Citrix XenServer, Microsoft Hyper-V, Vmware MSSQL, MySQL Exim, Postfix, PowerMTA Elastix, Asterisk, PBX technologies Backups - Symantec, Veeam Web Hosting and reselling Clouding Infrastructure planning and development Help Desk and support [level 3 only] I've been involved in various maintenance and/or implementation projects based on technologies mentioned above. I have also participated to network design and implementations projects as well as assisting customers migrating to the latest technologies. Nevertheless I assisted customers reaching their proposed goal or milestone in IT.

    $25.00 /hr
    2,673 hours