Asterisk Consultants & Developers

Showing 167 freelancers

Asterisk Consultants & Developers

Showing 167 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, 10 Asterisk projects are completed every quarter on oDesk.

10

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: July 1, 2014

  • VoIP PBX and Lync design and administration. Contract Center

    15+ years of Call Center and IT experience. Engineering and project management on Avaya 8700, 8300, G3, Gsi platforms, all Avaya remote gateways, as well as ISDN and SIP trunking with various carriers. Non-Avaya PBX experience also includes Cisco and … more

    15+ years of Call Center and IT experience. Engineering and project management on Avaya 8700, 8300, G3, Gsi platforms, all Avaya remote gateways, as well as ISDN and SIP trunking with various carriers. Non-Avaya PBX experience also includes Cisco and Asterisk, as well as Audiocodes media gateways and SBAs, as well as AcmePacket SBCs. Architecture, deployment and maintenance of Microsoft OCS 2007 R2 and Lync infrastructures. Strong focus placed on root cause analysis, incident documentation and effective end user communication in adherence to ITIL V3 standards.  less

    avaya asterisk microsoft-lync-server sip voip-software voip-administration 00 more less
    • $55.56 HOURLY RATE
    • 5.0
    • 3 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Experienced DevOps Engineer / Senior Linux Sysadmin

    Over the last 10 years I have worked with World Class IT Infrastructure configuring, deploying and maintaining routers/firewalls/servers all over the world using the most recent technologies. In the following list you will find my knowledge in the … more

    Over the last 10 years I have worked with World Class IT Infrastructure configuring, deploying and maintaining routers/firewalls/servers all over the world using the most recent technologies. In the following list you will find my knowledge in the computer and network technologies: Linux servers and desktop administration Apache web servers running in Linux, Windows and Unix (FreeBSD/OpenBSD) Mail servers configuration/administration using qmail, Postfix and Exim Good experience with Cisco routers, switches and firewalls (PIX) DNS servers administration using BIND Control panels knowledge, Plesk, Cpanel, Virtualmin, H-Sphere OpenVPN client/servers configuration Untangle configuration/setup Asterisk setup/configuration using Asterisk source or using fully customized installations like Elastix Services and server monitoring using Zabbix, Nagios, BigBrother and Cacti Database servers using MySQL/MS SQL/PostgreSQL Windows 2000/2003 configuration/administration for AD purposes, Exchange Mail Servers, WWW/DB servers Samba deployments using LDAP backend to store user information Experience with Linux Clusters using Heartbeat and Linux Virtual Server NAS, iSCSI, SMB network storage knowledge. I have experience with FreeNAS and Openfiler Experience with IBM Bladecenter S using HS12 and HS21 servers, from build to put the servers in production using Gentoo/Samba/LDAP/GoSA and Asterisk for the HS12 OpenWRT installations and configuration using Routerboard/PCEngines embedded PCs pfSense configuration/customization I have installed Wordpress, SugarCRM, V-Tiger, OTRS, Zimbra, Roundcube, and many others open source software in production environments  less

    linux-system-administration lamp-administration freebsd amazon-web-services amazon-s3 amazon-ec2 mysql asterisk vmware-esx vmware-administration 00 more less
    • $44.44 HOURLY RATE
    • 4.9
    • 294 HOURS
    • URUGUAY
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
  • VoIP Expert / IP-PBX Specialist / Computer Networks / Linux

    A man interested in all things Computer and Data/Voice Networks related. Also a Linux and Virtualization enthusiast :) A strong supporter of Richard Stallman and Open Source software movement! You can visit and view my thoughts on: http://myciscojournal.blogspot … more

    A man interested in all things Computer and Data/Voice Networks related. Also a Linux and Virtualization enthusiast :) A strong supporter of Richard Stallman and Open Source software movement! You can visit and view my thoughts on: http://myciscojournal.blogspot.com Some Areas of my expertise: VoIP: -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) Above all, a passionate technical writer, who enjoys writing down great tutorials in his free time :)  less

    cisco-routers cisco-voip sip linux-system-administration vicidial elastix trixbox a2billing freepbx asterisk 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 1182 HOURS
    • MALAYSIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • Server and Network Administration Specialist

    I have been working in Linux and Cisco platforms since 2009. Achieved my RHCE and CCNA certifications. I am currently working towards CCNP. Currently, I'm working in the Data Network of an International Internet Gateway. I have also worked … more

    I have been working in Linux and Cisco platforms since 2009. Achieved my RHCE and CCNA certifications. I am currently working towards CCNP. Currently, I'm working in the Data Network of an International Internet Gateway. I have also worked as a System Admin in a University and managed Servers that provided services for more than 500 hosts. I have worked in one of the largest ISPs in Bangladesh. I have deployed Linux Servers for many organizations and troubleshooted many Server related issues during my work in the ISP.  less

    linux-system-administration cisco-ios nagios iptables clustering samba ospf cisco-routers asterisk postfix 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 22 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 30 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • Sr. System Administrator / MCP / VMware

    Windows Server 2003, 2003 R2, 2008, 2008 R2, 2012 (Certified), 2012R2 Active Directory 2003 2008 2012 Microsoft Exchange 2003 2007 2010 2013 Microsoft Lync 2013 Asterisk Hyper V Vmware Microsoft SQL Server Microsoft SCCM Over the last 9 years, I … more

    Windows Server 2003, 2003 R2, 2008, 2008 R2, 2012 (Certified), 2012R2 Active Directory 2003 2008 2012 Microsoft Exchange 2003 2007 2010 2013 Microsoft Lync 2013 Asterisk Hyper V Vmware Microsoft SQL Server Microsoft SCCM Over the last 9 years, I have been providing my services in Deploying Data Centers, Disaster Recovery Sites, Microsoft Platforms (Windows Server 2003, 2008) including Domain, Exchange and Unified Messaging, Gaming Centers. My core competency is in complete end-end management of a IT infrastructure project. I am seeking opportunities to assist you in your day to day requirement for your IT operations.  less

    microsoft-hyper-v-server ad-servers microsoft-exchange-server microsoft-sccm microsoft-active-directory vmware-administration microsoft-lync-server vmware-esx asterisk 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 410 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
    ASSOCIATED WITH:
  • IT Service Management , IT project and support operations

    I am an IT consultant with experience and industry training of ITIL v3 Foundation. I have been involved in Service design, transition , operations & support phases of implementation of IT policies as per ITIL best practices. If hired, I would be … more

    I am an IT consultant with experience and industry training of ITIL v3 Foundation. I have been involved in Service design, transition , operations & support phases of implementation of IT policies as per ITIL best practices. If hired, I would be able to offer following but not limited to; - Complete documentation of IT hierarchy, & technical glossary. - Design & implementation of IT services catalog. - Service desk operation & escalation procedures. - Incident management with guidelines of SOP & SLAs for support best practices. - Plan to implement any change, release or retire any IT service. - And much more . . .  less

    technical-support customer-support network-administration virus-removal web-design wordpress 2d-animation cartooning video-conversion video-editing video-production audio-editing animation editing chat-support asterisk 00 more less
    • $11.11 HOURLY RATE
    • 4.3
    • 487 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 14 TESTS
  • Linux, Asterisk, CISCO system administrator

    Over the last 6 years i work in telecom-integrator company, located at Russia, Moscow. My core competency lies in network management, linux system administration, VoIP hardware and software management. I also have some expirence in PHP programming, MySQL programming and … more

    Over the last 6 years i work in telecom-integrator company, located at Russia, Moscow. My core competency lies in network management, linux system administration, VoIP hardware and software management. I also have some expirence in PHP programming, MySQL programming and administration, C/C++ programming. I write some patches for Asrerisk IP PBX (fix some problems with SIP video channel; patch for H.323 driver for interconnection with Ericsson BP-250 PBX, patch for RTP module for interconnection with some older versions of Ericsson MD-110 PBX).  less

    linux-system-administration asterisk 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 0 TESTS
  • System Administrator Linux

    I spent more than three years by being IT manager of two call-centers in Philippines. And one of them I built myself from scratch. This is how I got my experience about VoIP stuff. I have tried all - GNUdialer, vicidial … more

    I spent more than three years by being IT manager of two call-centers in Philippines. And one of them I built myself from scratch. This is how I got my experience about VoIP stuff. I have tried all - GNUdialer, vicidial, goautodial and Asterisk along with FreePBX. I'm not an "expert", but I have enough skills to setup a well working, secured VoIP system. Now I'm positioning as junior PHP programmer. For one year I'm studying PHP (yii, wordpress), jQuery, MySQL.  less

    mysql linux-system-administration asterisk php 00 more less
    • $5.56 HOURLY RATE
    • 4.6
    • 289 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Mr

    I am a very dedicated individual. I take the adequate time to do any assigned task. My skills are, but are not limited to the below:  Computer upgrading and repairs  Basic Networking skills  Basic Cisco firewall and switch configuration  Basic … more

    I am a very dedicated individual. I take the adequate time to do any assigned task. My skills are, but are not limited to the below:  Computer upgrading and repairs  Basic Networking skills  Basic Cisco firewall and switch configuration  Basic logon script knowledge  Basic Avaya knowledge  Basic Active Directory knowledge  Software troubleshooting  Solarwinds experience  Basic Microsoft Exchange knowledge  Basic DNS knowledge  Basic DHCP knowledge  Basic Linux/Windows knowledge  less

    computer-networking microsoft-exchange-server data-entry internet-research internet-surveys adobe-pdf pdf-conversion cisco-asa microsoft-excel ftp dns cisco-routers vicidial teamviewer vpn asterisk network-administration adobe-acrobat microsoft-word 00 more less
    • $11.11 HOURLY RATE
    • 4.9
    • 30 HOURS
    • JAMAICA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 6 TESTS
  • European system/VoIP administrator - Linux, VoIP, LAMP, Cisco, Amazon

    After 15+ years in system administration, I can say, I can help with any problem you could have. I was implementing clusters (http, asterisks, opensips), design and install high available infrastructure, finding bottlenecks in applications including resolution, design, install and … more

    After 15+ years in system administration, I can say, I can help with any problem you could have. I was implementing clusters (http, asterisks, opensips), design and install high available infrastructure, finding bottlenecks in applications including resolution, design, install and manage VoIP infrastructure with thousand of customers and mainly, bringing new ideas into life. Areas of knowledge: - Apache/HTTPD - installation, tuning, design of infrastructure - NGINX/HAPROXY - balancers, high availability infrastructure - PHP/MySQL - tuning for best throughtput - Asterisk - extensive administration for VoIP provider - Opensips - loadbalancing+high availability in voice services All this on Linux (Debian, CentOS, Ubuntu) and FreeBSD. - all type of clustering/virtualization - Xen, vmware etc. - all operations, scalability and high availability - Amazon/Rackspace - high available setups, hacks for automated deployment etc., about 50 instances under my management With all technologies, I was working with many companies, mainly from US and Canada. Everywhere, I was the person, on which main responsibility laid. My biggest advantage is, that I am working, until problem is not resolved - I am not blaming anybody, but working. Do you want to try it? Go ahead and drop me a line.  less

    apache-administration mysql asterisk opensips php nginx haproxy rackspace-cloudservers amazon-ec2 amazon-web-services 00 more less
    • $21.11 HOURLY RATE
    • 4.2
    • 4 HOURS
    • SLOVAKIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
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