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.

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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, 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. Muhammad Yousuf

    Muhammad Yousuf

    VoIP/Linux Administrator

    Pakistan - Last active: 1 day ago - Tests: 2 - Portfolio: 1

    I always love to learn new technologies and try my best to accomplish new and challenging tasks. 1. Complete IP PBX from scratch (Asterisk and freepbx) 2. Elastix (call center, fax server) 3. PIAF (With all Nerd Vittels scripts and tricks) 4. Trixbox and Freepbx Distro 5. Call center applications (Goautodial, Vicidial, Elastix) 6. Broadcast and AutoDialer(Goautodial) 7. VoIP calling card, pinless calling, wholesale, DID reselling (A2billing) 8. CRM with VoIP integration (Vtiger, SugarCRM, SuiteCRM) 9. Security of Servers and VoIP (Firewalls, Monitoring, Aleting) 10. VoIP security (Application security, Brute force attacks prevention, Fail2ban) 11. Monitoring of Servers and services (Nagios, Opsview) 12. High Availability and Failover (Heartbeat, DRDB, Pacemaker, Corosync) 13. Auto Proviosioning of IP Phones (Multiple vendors) 14. Asterisk custom dialplan 15. Fax server (Hylafax, Avantfax) 16. CDR statistics, Centralize CDR server for multiple Asterisk servers. 17. Missed call notifications, Queues reporting for Asterisk 18. Asterisk Operator Panels (Isymphony, FOP2) 19. VPN (OpenVPN, IPsec, PPTP with firewall security) 20. IVR (Database Backends) 21. Asterisk Integration with Digital PBXs i.e. Avaya, Nortel(sip trunking and PRI trunking) 22. GSM gateways with Asterisk (Openvox, GoIP, Dinstar, Quescom) 23. Networks (Switching, Routing, Security, Monitoring, Alerting, Optimization) 24. Firewalls (Pfsense, UTM, IPTables) I have practically experience of all the above mentioned products and technologies and I completed many custom projects using these. I am not limited to only these technologies, I always welcome to know new technologies and environments. I am always ready for a test job to prove my skills :-).

    $22.22 /hr
    180 hours
    4.97
  2. Sergo Sarkisian

    Sergo Sarkisian

    Linux , Cisco ,Vmware , Voip, firewall , security specialist

    Georgia - Last active: 1 day ago - Tests: 18

    I want to utilize my knowledge, skills and professional experience in order to contribute to the growth of the company I am working for whilst improving myself. SKILLS:network engineer ,system administrator(RedHat,CentOS,FreeBSD,OpenBSD,WIndows 2000,2003 server), cisco certified specialist(CCNA) Configuration of CISCO routers and switches,firewalls,servers:cisco 36xx,65xx, series,ASA firewall 55xx series, Implementation , configuration,design ,troubleshooting of basic routing protocols(BGP,EIGRP,RIP,OSPF,QoS,MPLS,HSRP,VRRP,GLBP) , Security: IPsec and many vpn solutions,certificate setup 1 Web servers - Apache 2.x,nginx,Squid proxy 2 Mail servers -Postfix,qmail ,sendmail,Mdaemon 3 FTP servers -WuFTPD,Vftpd 4 DNS –bind version 9 ,VPN (Openvpn, IPSEC implementation ) 5 DATABASES-Sql,mysql,postgresql,sqlite 6 LVM ,RAID(0,1,5,10) configuration 7 Experinece in network monitoring tools:Nagios,MRTG ,Cacti

    Groups: Bluehost Developers and Designers

    $20.00 /hr
    916 hours
    4.99
  3. Sagnik Pal

    Sagnik Pal

    Freelancer - IT Projects

    India - Last active: 08/31/2014 - Tests: 8

    Effectively combine my technical expertise and Domain knowledge in conceptualizing and implementing solutions that align IT initiatives to achieve business goals within given TIMELINE, ensuring QUALITY & COST OPTIMIZATION in the best possible way. ================= CORE COMPETENCIES: ================= IT Infrastructure support involving network & server support; Automation through scripting using VBA & VBscripts; Technical documentation; Trainings; Transcription;

    $20.00 /hr
    0 hours
    5.00
  4. waseemy shahy

    waseemy shahy

    Bigcommerce / Big Commerce / Photoshop / Html5 / Css3 / Javascript

    Pakistan - Last active: 1 day ago - Tests: 6 - Portfolio: 18

    Over the last 4 years, I have developed a wide range of websites using HMTL, DHTML, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have some experience in the following areas: SQL, Ajax, OOP, software design and testing, eComerce (OScommerc, Magento, Viart, Bigcommerce) , Databases (Mysql, Oracle), Programming (C, C++, Php, Perl, Java Script, Html, Css), OS (Windows,Linux,Mac), VOIP (Asterisk,IVR).

    Groups: BigCommerce

    $16.67 /hr
    2,113 hours
    4.65
  5. Marvin P.

    Marvin P.

    AWS, VPS, Dedicated, Windows, Linux and Systems Administration.

    Philippines - Last active: 3 days ago - Tests: 10 - Portfolio: 7

    My goals are to provide: 1.) Amazon Web Services (EC2,S3,RDS,Route53,etc) 2.) Linux security and administration, includes installation and configuration of some linux distro's: CentOS, Fedora, Ubuntu, FreeBSD, OpenBSD, Debian, OpenSuse and other linux distributions with Apache,MySQL,Bind,LDAP,FTP,SSH,Webmin and other linux services. Patches and updates of services. Firewall Systems PFsense & Untangle. 3.) Web development & design in Joomla, Wordpress, Drupal, Other CMS Platforms and PHP/MySQL/Javascript/Jquery Programming 4.) Assistance in Hosting Management, Web Transfers, Domain transfer and website consultancies. This includes WHM/Cpanel administration and installation. 5.) Integration of Payment Gateways in Shopping Cart CMS and sites on Magento, Prestashop, Zen-Cart,OpenCart, OSCommerce, Virtuamart and other cart CMS's. 6.) Network Communication Setup. Includes VoIP server and phones installation and configuration. 7.) Windows systems administration like, Microsoft windows server 2003-2012, Exchange server 2003 - 2013, Active directory, DNS & FTP Server. And other Windows Stuff. With over 10 years experience in the field of IT, I can assure my quality service and satisfaction Best Regards.

    $22.22 /hr
    101 hours
    4.62
  6. Waqas A.

    Waqas A.

    Mr.

    Pakistan - Last active: 17 days ago - Tests: 3 - Portfolio: 2

     Design and implementation of Vmware ESX and ESXi Server/ Vsphere and other virtual technologies (VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.)  Performs the tasks of designing Advanced Security & Management Solutions.  Design and implementation of DNS Servers, Unbound DNS Server, Kerio Mail Servers, Send Mail Server, TACACS Server, CRM System, DOCSIS Cable Modem Termination System, Incognito DHCP Broadband Command Centre for CMTS.  Bandwidth management for Optical Fibre customers on Routers and Switches, Monitoring of links by using network performance monitoring tools such as Cacti, Manage Engine Netflow Analyzer, Solar Winds, Smonitor, Nagios etc  Implementation of routed & routing protocols, like OSPF, BGP, EIGRP in live environment  Worked on Cisco 2950, 2960, 3550, 3560, 3750, 6509 switches and 2500, 2600, 2800, 3600, 3700, 7200,  7600 series Routers in real environment approx. 500 Hours.  Implementation of (VLANs, VTP, RSTP, MSTP, ETHERCHANNEL, INTER VLAN ROUTING, HSRP, PRIVATE VLAN, SWITCH PORT SECURITY)  Design and implementation of VPNs ( Site-Site, Remote Access, DMVPN, IPSec over GRE, Get Vpn)  Design and implementation of MPLS VPNs  Management of CAR on routers and switches by rate limited feature  Design and implementation of (AAA with Local & Remote ACS Server, 802.1 x authentications, Proxy Authentication).  Design and Implementation of Microsoft Active Directory 2003 based on Microsoft best practices. Implementation of Anti virus Servers (Kaspersky, Sophos) in a medium sized company  Design and Implement SAMBA server using LDAP authentication for LAN users.  Design and Implementation of Send Mail Servers, MS Exchange e Server 2003/2007 based on Microsoft best practices.  Design and Implements SQUID 2.4, 3.1 Proxy Server based on Centos, Red Hat OS.  Implementation of different Network Performance monitoring tools such as (Cacti, Net Flow, Manage Engine OpUtils, SMonitor, Solar Winds, Nagios, JFF) to monitor WAN devices and different servers to optimize network resources and traffic.  Design and implementation of SIP on cisco voice gateways.  Design and implementation of MPLS VPNs  Support and Maintain Cisco Core Routers 7206VXR. 7600 Series, 2800 Series, small business series RV042, RV082 for vpn connectivity.  Supporting and Managing HEC Cisco Core and Edge Switching network.  Design and Implements SQUID 2.4, 3.1 Proxy Server based on Centos for differnet clients.  Deploy cacti, solar wind, cisco works Monitoring System to monitor Network and Bandwidth Usage.  Management of CAR on routers and switches by rate limited feature.  Design of Networking Infrastructure and resource sharing solution. The project covered the design of networking system, Servers, and applications in Windows 2003 environments. The project used TCP/IP as Network protocols and Star Topology.  Conduct Surveys on client sites and create project proposal and layouts for networks deployment and implementation.  Design and Implementation of BGP/MPLS, Traffic Engineering, Policy Based Routing PBR, Route Filtering, Redistribution, Route Summarization.  Catalyst IOS based Switches, VTP, STP, RSTP, Trunking, VLANs,  Layer 3 Switches, Logical Etherchannels, MLS.  IPSec, VPNs, AAA Model (RADIUS, TACACS+, Kerberos), Cisco PIX / ASA  Firewall, VPN Client, Juniper Firewall SSG5, SSG20  Design and Implementation of Incognito DHCP Server for assigning bandwidth to cable modem customers.  Media: Ethernet, FastEthernet, GigabitEthernet, FDDI, CDDI, Token Ring, ATM LAN Emulation.  Network Analyzers: Back Track 5 , Ethereal, Paketyzer, Radcom, Etherpeek.  Load Generator: Spirent Smart Bits, iperf, IPTraffic.  Leased lines 64k - 155Mb (PPP / HDLC), Channelized lines (E1 ), Fibre Optic Circuits, Frame Relay, xDSL, Load Balancing, Multi Homing, Satellite links. I also have extensive experience in following  Linux & Windows Integration in TCP environments  Expertise Linux Redhat, Ubuntu, SUSE, Centos, Debian, Slackware and Solaris Systems  Expertise in SQUID Proxy server. DNS Server, DHCP, Send Mail, Kerio Mail Server.  VMware ESX Server, Virtual Center, Distributed Resource Scheduling (DRS), VMware Data Backup , VMware Converter, VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.

    $16.67 /hr
    154 hours
    4.71
  7. Tarik M.

    Tarik M.

    Asterisk, VoIP Expert, IP-PBX, linux, Server Admin, Firewall, OpenVPN

    Bangladesh - Last active: 20 days ago - Tests: 5 - Portfolio: 1

    Over 8+ years of IT experience in Server Systems and Network solutions, maintenance and support function. Expertise in Linux & Windows. I have in-depth knowledge of experienced Asterisk, A2billing, Freepbx / VoIP & Network Administrator procedure and documentation. * Asterisk PBX installation, support, advanced VoIP services development * Advanced Call Recording Solution using Asterisk * Hosted PBX applications (Asterisk, Freepbx, Elastix, A2billing, asterisknow) * Call Center applications (Vicidial) * VPN/OpenVpn installation and support Fully manage the installation, configuration and troubleshooting of Linux servers * Install and configure Web Servers and MySQL * Install and configure customer scripts and programs * Monitor performance to identify and resolve issues using a suite of systems and tools. * Troubleshoot and resolve network, system, hardware and software problems. * Achieve quick fixes and / or long-term solutions as needed. * Maintain 100% customer satisfaction through all available means I am also effective in digital and web graphics such as logo, banner, pdf forms and others related to arts and graphic designing. I am a multi-awarded Photographer. I am best in retouching photographs, making advertisements, retracing illustrations and making print materials such as flyers, brochures, posters, cd/dvd covers, packaging and labels, business cards and letterheads.

    $15.00 /hr
    0 hours
    5.00
  8. Adeel A.

    Adeel A. Agency Contractor

    Web development with over 8 years of experience PHP and Ruby on Rails

    United States - Last active: 3 days ago - Tests: 2 - Portfolio: 3

    I have been working with PHP for the last eight years on many different projects. I also have extensive experience working with API's and all of the major social media platforms. Over the last five years I have expanded my knowledge base to include Ruby on Rails and mobile development. I also have a large team of seasoned developers to help out with larger projects.

    Associated with: Geeks Chicago

    $27.78 /hr
    11 hours
    4.83
  9. Hank Huang

    Hank Huang Agency Contractor

    VoIP Consultant/Infrastructure Architect

    United States - Last active: 6 days ago - Tests: 2 - Portfolio: 3

    I am specialized in voice and data integration. Established monitoring platform for data centers with Nagios based tools. Integrate with graphs to collect historical metrics and application performances. Provide an easy to use interface for both the engineers and the infrastructure managers. I have experiences managing hundreds of Linux servers in large scale with a mixed environment of physical and virtual servers. Utilizing configuration management tools like Puppet, monitoring platform OMD (Nagios + Check_MK + Pnp4Nagios), and continues integration to ensure the highest quality service provided. List of my skills: DevOps Integration: Open Monitoring Distribution, Nagios, Check_MK, Puppet, Jenkins, Selenium WebDriver, PhantomJS, Sikuli automation VoIP: Asterisk, A2Billing, FreePBX, Trixbox, Elastix, PBX in a Flash, FreeSWITCH, Plivo, OpenSIPS, SwitchVox IP phones: Astra, Polycom, Linksys, Grandstream, Snom, Cisco, Yealink System Admin: RedHat Linux, CentOS Linux, Debian Linux, Ubuntu Linux, VPN, DNS, High Availability Open Source Server: Zimbra communication Suite, Redmine Project Management,Deki Wiki, OpenVZ virtualization, KVM virtualization Cloud Service: Amazon EC2, Amazon S3, VPS.NET, Linode, Racksapce, Digital Ocean

    Associated with: UniC Solution

    $55.56 /hr
    398 hours
    4.81