VOIP Administration Freelancers

Browse VOIP Administration job posts for project examples or post your job on oDesk for free!

VOIP Administration Job Cost Overview

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

oDesk VOIP Administration Jobs Completed Quarterly

On average, 28 VOIP Administration projects are completed every quarter on oDesk.

28

Time to Complete oDesk VOIP Administration Jobs

Time needed to complete a VOIP Administration project on oDesk.

Average VOIP Administration Freelancer Feedback Score

VOIP Administration oDesk freelancers typically receive a client rating of 4.73.

4.73
Last updated: April 1, 2015
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Arsen S.

Arsen S.

VoIP Administration & Development

Bulgaria - Last active: 2 days ago - Tests: 2 - Portfolio: 6

I am focused in VoIP field only and I have been working here for more than 8 years. My Area of experiences: VoIP -Asterisk PBX: Full proficiency -FreeSWITCH: Full proficiency -Yate: Full proficiency -Strong knowlege of SIP protocol and SIP routers/proxy servers -OpenSER (Kamailio/OpenSips) -Load Balancing, Least Cost Routing, High Availability, NAT Traversal, Rate and billing systems, etc. -IVR and Auto Attendant Development -Secure VoIP: TLS, SRTP, ZRTP SQL -MySQL/PostgreSQL - design, maintenance and optimization of databases -NoSQL: MongoDB Various Billing solutions and GUI: -A2Billing: Full proficiency (configuration from scratch, customization) -CDRTool (prepaid billing/accounting and sip tracing for OpenSIPS using RADIUS) -CDR-Stats (call detailed statistic/realtime for Asterisk and FreeSWITCH) -vBilling (billing for FreeSWITCH) -FreePBX: GUI for Asterisk -Fusionpbx: GUI for FreeSWITCH I have successfully completed large amount of commercial installations of VoIP PBX servers. From SOHO to Enterprise deployment including integration of various VoIP solutions into existing network environment. I also have experience in building of secure "bastion" VoIP/Linux servers. Terms: Hourly based projects: -Current hourly rate is $40. Fix price projects: -Fixed price projects are calculated based on the hourly rate and expected task complexity. -For all fixed price projects complete project specification with clear tasks description is required -For all fix price projects work will be started only after payment has been escrowed and both parties have agreed with working terms.

$55.56 /hr
110 hours
5.00
Sergii Lysiuk

Sergii Lysiuk

Network Security VoIP Specialist - Cisco, Juniper,...

Ukraine - Last active: 6 days ago - Tests: 17

I am looking for projects that I can complete on a part-time basis. They can be either short term projects or long term projects. I can also provide ongoing consulting and administration if needed. I am experienced in Cisco Routing & Switching, MPLS, Security, Network infrastructure applications ( SNMP, Radius, DNS, DHCP , etc) Voip - including Asterisk, Call-Manager , Unity, FreePBX, Elastix. Server administration experience ( Linux, FreeBSD)

$38.89 /hr
381 hours
5.00
Khizer Farooq

Khizer Farooq

Computer Systems and Network Engineer CCNA|MCSA|MC...

Pakistan - Last active: 1 day ago - Tests: 13 - Portfolio: 12

I have done Computer Systems Engineering, worked with different companies for three years and now starting to work as a full time Free Lancer. I have an extensive first hand experience of dealing with System Networks, Windows Servers ( 2003, 2008),2012 different vendors Internet management and security solutions ( Hardware and software) like Air Live 802.11G Internet Access Server, Sonicwall,WatchGuard , ISA 2006 server, GFI Web Monitor, HP Servers, Client and server OS. Other than professional experience I have done Worked in following virtualization software's VMware ESXi 5.0-5.5 Microsoft Hyper-V, Sun/Oracle Virtual Box. Other than professional experience I have done different International Certifications CCNA. MCITP Windows7 Enterprise MCSA Windows 7 MCTS. | Windows 7 MCTS. | Windows 8 PRO: Designing and Deploying Messaging Solutions with Microsoft Exchange Server 2010 OCP( Oracle Sun Solaris OS 10 System Administrator) ITIL Foundation. VTSP 5 I have successfully completed following projects, that were for IT Govt Sector and five star Hotel's Planning Designing and Establishing Network Infrastructure using Microsoft Operational Framework (MOF v 4.0),network consisted of 200+ clients and 20 + servers (HP Proliant ML-150, ML-350,Dell Power Edge 2900). Installation configuration and management of ISA Server 2006,Juniper SSG 5 working together, providing security solution for more than 100 static and 200+ dynamic clients. Automate the process for Management of Internet User Account for the users by Implementation of RADIUS Server In-house developed Software Application Up gradation of clients systems from Windows XP to Windows 7 . Up gradation of domain from Server 2003 to server 2008 Enterprise R2 .

$44.44 /hr
546 hours
4.95
Aleksandr Z.

Aleksandr Z.

Expert UNIX and network administrator

Russia - Last active: 4 days ago - Tests: 10

My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD, solaris and Windows Server - proficient Cloud services: AWS, Rackspace Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Monitoring: Nagios, Zabbix, Monit, Munin, Cacti Virtualization: Vmware ESXi/server, Citrix, Proxmox Mail servers: Exim, Sendmail, Dovecot, postfix, Zimbra Backups: Bacula, duplicity Other: standard network services (DNS, DHCP, LDAP, Samba, http proxy, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding, bgp, ospf, infiniband).

$16.67 /hr
45 hours
4.69
Misha D.

Misha D.

Linux Administrator/Programmer.VOIP Expert (Asteri...

Georgia - Last active: 6 days ago - Tests: 16

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.

$20.00 /hr
192 hours
5.00
Mohamed Fahim

Mohamed Fahim

Expert in Asterisk, A2billing, Elastix and AWS, Cl...

Sri Lanka - Last active: 6 days ago - Tests: 4

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.

$16.00 /hr
758 hours
4.91
Dmitry Sytchev

Dmitry Sytchev

Asterisk/Freeswitch/Kamalio expert, VoIP engineer,...

Russia - Last active: 5 days ago - Tests: 7 - Portfolio: 1

I have more than 10 years of experience in installation and support of carrier-grade VoIP services based on Asterisk, OpenSIPS, Kamailio, Freeswitch and proprietary SIP/VoIP software. My professional interests are Callcenters, automated dialer systems and integration of VoIP software with company information flows. You can rely on my strong engineering and programming skills for projects starting from single VoIP server to a complete wholesale/carrier VoIP solutions including billing, call data analysis, security and fraud prevention. I have developed complete SIP solutions for VoIP carriers worldwide: Proxy/Registrars, IVR, prepaid systems, multi-tenant VoIP switches, hardware PSTN gateways (Cisco AS5300/5500, Audiocodes Mediant 2000, Quintum Tenor). I have experience in setup, administration and security of Asterisk, FreePBX, Elastix and FreeSWITCH PBX installations. As a programmer I use PHP, Javascript (both client-side using jQuery and Angular.js and server-side with node.js), Perl (system scripts/applications, Mojolicious webapps). I also have experience in development and administration of MySQL and Microsoft SQL Server databases. I'm experienced network engineer, skilled in routing and switching, general network architecture planning and deployment, network monitoring and security, including HA solutions (heartbeat/pacemaker). I use Zabbix and have some experience with Nagios and other monitoring software. I can also offer you consulting support in VoIP and network technologies.

$33.33 /hr
86 hours
4.96
Irfan Ahmad

Irfan Ahmad

Expert of Web Design & Development

Pakistan - Last active: 6 days ago - Tests: 2 - Portfolio: 44

Over the last 7 years, I am in VoIP applications development & administration as well as developed wide range of web based application and websites using Groovy n Grails, Wordpress, Yii-Framework, PHP, HTML, CSS3, Ajax, jQuery, Javascript, SQL, MS Access, MySQL, Adobe Photoshop and integration of payment gateways. My core competency lies in VoIP applications including development, configuration and administration and worked for 5 international VoIP businesses. I also achieved more than 80 international startup and small businesses for websites design and development. I have strong hold in designing graphics including business cards, letterheads, flyers, newsletter and other graphic work. I am seeking opportunities to build websites from the ground up for you or your business. I also have experience in the following areas: Integration of payment gateways, Integration of custom APIs, SVN, Tomcat, Intellij, Netbeans, Dreamweaver and Adobe Photoshop. My professionalism, skills and knowledge make me an exceptional choice for your projects.

$14.44 /hr
845 hours
4.62
Oscar R.

Oscar R.

DevOps/SysAdmin

Panama - Last active: 1 day ago - Tests: 13 - Portfolio: 5

Proud to be a problem solver, high level Unix/Linux expertise, a very fanatical Cloud SysAdmin with horizontal mentality and heavy DevOps culture. I am research oriented, self motivated and I feel comfortable when I take new challenges, I like the CI environments and I love working under pressure. Core skills: FreeBSD, Solaris, Linux, pfSense, Mikrotik, Capistrano, CFEngine, Chef, Asterisk, Tropo, Twilio, EJabberd, Xen, Proxmox, vmware, OpenStack, OpenNebula, AWS, Joyent, RackSpace, HP-Cloud, OpenVz, Varnish, Nginx, Lighttpd, Apache, Yaws

$133.33 /hr
1,464 hours
5.00
Duc To

Duc To

Extensive experience with VoIP, Desktop/Web/Mobile...

Vietnam - Last active: 4 days ago - Tests: 1

Thank you for viewing my profile! I am a full stack engineer and joined many projects as leader/manager in 7 years. I have deep experiences in enterprise systems from desktop/web/mobile applications to VoIP / Network infrastructure. I can mange whole project from getting customer’s requirement, feature and technical designing, configuring and maintenance, optimization and improvement suggestion. With 8 outstanding projects (good feedback and short working time) only at oDesk and many more others, I am the most suitable candidate for following specific jobs: - Enterprise VoIP and network system with load balancing and high availability requirement - Enterprise desktop / web / mobile application I am looking for clients that are seeking experience and quality candidate

$25.00 /hr
0 hours
4.79