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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, 59 Asterisk projects are completed every quarter on Upwork.

59

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 4.58.

4.58
Last updated: August 1, 2015
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  1. Shaila S.

    Shaila S.

    Web Research, Technical writing

    Bangladesh - Tests: 3

    I am hard working, honest, self-motivated professional; experienced technical support representative and Helpdesk who welcomes challenges associated with driving performance, performance improvement and customer satisfaction. I am working as a core network engineer in an Wimax company.As I only work 8 hours a day 5 days a week ,i have plenty of time to work in upwork I can better serve you in following ways: • Install, configure, maintain and troubleshoot DNS, Web, Proxy, FTP and Centralized Syslog Servers. • Configure and maintain mail servers (postfix, sendmail, qmail). • Configure, maintain ,Adding extension with outbound number, Troubleshooting and report generating of Elastix Server & Asterisk (PBX) • Attack Mitigation: DNS Amplification Attacks, DDoS Attacks, Spamming; Capture & analyse internet traffic packets using Wireshark and other tools for troubleshooting/diagnosis purpose and problem resolution • IP Core Network: IPv6 planning & implementation, EGP protocol (BGP ), IGP protocol (OSPF, EIGRP, IS-IS), Load balance protocol (VRRP, HSRP), Firewall (Cisco ASA, Juniper NetScreen, SRX) • Working with bandwidth shaping tasks using MikroTik Routers and ET/BWMGR • Work extensively with VPN, Router, Switches, Firewalls and Intrusion Prevention Systems (IPSs). • Site-to-Site VPN establish & VPN over Wireless Network & fiber (GRE, IPSEC, SSL-VPN) • Infrastructure design for new clients according to their demand. HLD & LLD design of Network: Access, Distribution & Core layer • Configuring and maintenance Mikrotik Routers with Wi-Fi system. a. NAT, Port forward, Fault Tolerance, Application layer Filtering, Service Prioritization. b. Bandwidth Shaping, Declaring separate Queue both for management and other employee with different speed. c. Assigning no bandwidth limit for internal applications like Mail, CMS, Alepo, ERP, and website. d. Applying restriction for non-official application with IP and content based filtering. e. Site-restrictions with Scheduling.

    $3.33 /hr
    86 hours
    5.00
  2. Jose Herrera

    Jose Herrera

    Consultant Technology

    Venezuela - Tests: 2 - Portfolio: 8

    Consultant Technology. Expertise in Linux (Centos, RedHat, Debian, Ubuntu, Suse), Unix (Solaris, HP-UX, Tru64). System administrator in Microsoft, Linux and UNIX and AWS I am enthusiast of open source including operating systems and applications. I also have experience with databases like MySQL and PostgreSQL and SQL queries.

    $11.11 /hr
    0 hours
    0.00
  3. Sarmed Rahman

    Sarmed Rahman Agency Contractor

    Server and Network Administration Specialist

    Australia - Tests: 5 - Portfolio: 34

    Cisco and Red Hat certified IT professional with four years of experience in system and network administration. Seasoned in planning, implementing and monitoring networks and services that meet challenging SLAs with maximum uptime and optimized routing.

    Associated with: Uber Team

    $30.00 /hr
    22 hours
    5.00
  4. Jamal H.

    Jamal H.

    Programmer /VoIP-IP-PBX & Linux Expert/Computer Networks & Security

    Malaysia - Tests: 1 - Portfolio: 3

    I have expertise in various programming and networking platforms. My VoIP Expertise are as following: VoIP: -SIP/H.323/SS7/TDM -Genband Nextone - Expert -Sonus and NBS Solution - Expert -MVTS Pro and MVTS II - Expert -Acme Packet - Sound proficiency -Asterisk PBX: Full proficiency -Strong knowledge of SIP protocol and SIP routers/proxy servers/SS7 -OpenSER (Kamailio/OpenSips) -Load Balancing, Least Cost Routing, High Availability, NAT Traversal, Rate and billing systems, etc. -IVRs/Auto Attendant Development. -Wireshark - Expert Cisco Routing and Switching technologies. Centos/Fedora/Red Hat Enterprise Linux Various Billing 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) - vBilling (billing for Freeswitch) My Programming expertise are as following: -Web Applications Development in PHP and ASP.NET MVC5 -Desktop Applications in Java, C#.net (Windows Presentation Foundation) -Mobile Applications in Android -Database design in My-Sql and MS-Sql A research oriented mind, with strong problem solving skills. An avid reader, who loves to write about his area of interest (VoIP/Programming) and new emerging technologies in the field of Communications and Software designing.

    $20.00 /hr
    0 hours
    0.00
  5. Zaheer D.

    Zaheer D. Agency Contractor

    Network/System Admin,PHP, MYSQL, Wordpress, Article Writing, Linux,

    Pakistan - Tests: 4 - Portfolio: 1

    Strikingsoft Solution provides state of the Art Network/System administration, web design, web development and software solutions. We have expertise in Joomla, Wordpress, Drupal, Os Commerce, Zen cart, Cake PHP and Core PHP (custom PHP coding). Our state of the Art web design and development solutions are also search engine friendly and scalable keeping future requirements in Mind. Our Services are: - Network Administration - System Administration - Web Designing - Web Development: PHP, MYSQL, Drupal, OS Commerce, Zen cart, Joomla, Wordpress and Cake PHP etc. Service Description Network/System admin includes Server(windows, Linux etc.) and networks equipment(Switches, router, firewall etc.). We deal in website designing, Open Source based web development as well as application development. In web designing: we create customized designs based on our groundwork done on client's business and client's feedback/preferences. In Web Development our websites are secure, robust, scalable and flexible. Strengths: - Comprehensive Online Business solution provider having expertise in Web Design, Development and partners with Online Marketing gurus. - Providing search engine and user friendly web design and development solutions. - Proper implementations of online marketing recommendations. - Providing customized solutions as per Client's Business goals, challenges and specific requirements - Expertise in customizing ready made third party solutions to meet clients' business goals. - High level of communication to ensure an inception of an effectual business plan of a project. - Employing latest technologies and ethical business practices to provide future proof, scalable and strong foundation solutions. 100% team work. 110% client's satisfaction!

    Associated with: Strikingsoft Solutions

    $20.00 /hr
    14 hours
    3.00
  6. Yawar Hadi

    Yawar Hadi

    Voip, asterisk, perl scripting, freeradius, linux, mysql developer

    Sweden - Tests: 3 - Portfolio: 3

    From last two years i am working on asterisk, free radius and mysql.I developed a full voip application which consist of * Calling Card Application * Soft phone to PSTN calls * DID to Soft Phone * DID to Forwarded no. * SIP to SIP calls * Call routing besides these i add the asterisk realtime functionality using mysql database and for billing i use the free radius server. So my core competencies are asterisk, perl, python, free radius, mysql DB and working on linux plat form.

    $8.89 /hr
    75 hours
    5.00
  7. Hristo Iliev

    Hristo Iliev Agency Contractor

    Linux system administrator

    Bulgaria - Tests: 3 - Portfolio: 2

    - Linux (Gentoo, ArchLinux, Debian, etc) - Opensource based infrastructures. Troubleshooting and recovery - Scripting ( Bash, Perl ) - Services (Nginx, PHP-FPM, MySQL, memcached, mongodb ...) - Monitoring (Cacti, Nagios). Writing plugins - Strong networking skills - Version control (subversion. mercurial) - Asterisk (VoIP solutions). GSM gateways - Programming at basic level (C, C++, JAVA, PHP)

    Associated with: Samsourcing

    $22.22 /hr
    1 hours
    5.00
  8. Václav S.

    Václav S.

    Git Expert

    Czech Republic - Tests: 2

    I have strong skill with Git administration on server side - installing and configuring Gitolite, Redmine + plugin and writing special hooks. I have also teached developers how to use Git properly, showing them right workflow, choosing Git clients/tools, creating aliases and solving daily problems. I have worked with about 300+ Git repos for one project. I read Git mailing list everyday so I can work with latest Git features.

    $25.00 /hr
    4 hours
    5.00
  9. Nathaniel Bautro

    Nathaniel Bautro

    Technical Person and eperienced IT person

    Philippines - Tests: 11

    With years of experience in an Helpdesk environment, I was able to develop my skills when it comes to troubleshooting Computers. I have also developed my skills in Customer Service along with the area of training and business development. These past 5 years, I have managed my own Buy n' Sell business, and also worked as a freelance IT Consultant. That's the reason why after five years of being a member in odesk, I only have 1 completed job. As an IT Consultant, I have implemented and deployed 5 Asterisk Based servers, Sugar CRM software, and NMIS. In addition to project management, I have created the training course for IT personnel based on the deployed system and have created all training materials, including system documentation and network diagram. I am seeking employment from clients that I will be able to provide technical support and even training for their employees as these are the areas that my abilities excel.

    $5.56 /hr
    0 hours
    5.00
  10. Adeel Ahmad

    Adeel Ahmad Agency Contractor

    Network and System Engineer

    Pakistan - Tests: 3 - Portfolio: 5

    Over the last 2 years, i have gained experience in managing server and Network infrastructure across multiple platform.Effectively plan, install, configure and optimize the IT infrastructure to consistently achieve high availability and performance.Proven ability to create and deliver solutions tied to business growth, organizational development and systems/network optimization. Skilled problem identifier and troubleshooter comfortable managing systems, projects and teams in a range of IT environments. Below are my skills set. Expertise: *AD, DNS, DHCP, VPN, ISA Firewall, IIS Manager, Perfmon, Visual Source safe Administration, SQL Server 2008 Administration,mysql Administration, Windows Server 2003, 2008, 2012, Windows xp, 7, 8 *Vmware Esx 5.1, Vmware v Center Server, Vsphere Client, vmware Work station, Vmware standalone Converter, Trixbox, RHEL 5 & 6, Centos, FTP Server, Samba Server, Squid *Dell Server 2850 and 2950 Raid Configuration, *Cisco 2950, Cisco 3500, Linksys Rv082, Dell Tape Drive, Linksys NAS200 *Acronis Backup and Recovery, Norton Backup Exec, Norton Ghost * Eset Firewall and Antivirus with Central Administration * Jira Administration, Basecamp, Redmine Administration * Web Development in html and workpress

    Associated with: COMSIAN

    $10.00 /hr
    7 hours
    4.56