VOIP Software Freelancers

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

VOIP Software Job Cost Overview

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

oDesk VOIP Software Jobs Completed Quarterly

On average, 50 VOIP Software projects are completed every quarter on oDesk.

50

Time to Complete oDesk VOIP Software Jobs

Time needed to complete a VOIP Software project on oDesk.

Average VOIP Software Freelancer Feedback Score

VOIP Software oDesk freelancers typically receive a client rating of 4.53.

4.53
Last updated: April 1, 2015

Popular VOIP Software Searches

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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
82 hours
4.96
Cuong Thai Huy

Cuong Thai Huy

XMPP/VoIP developer

Vietnam - Last active: 1 day ago - Tests: 9

Excellent understanding of XMPP from client to server. I have implemented XMPP client for web app (using Strophe), android app (using Smack), desktop app (using libjingle). On ejabberd, I have implemented many modules that defines own presence, iq, message, even I can define own stanza. Execellent understanding WebRTC. I have implemented Linux application that uses XMPP or Websocket for signaling and WebRTC for media transport to establish p2p audio&video call. Source code of Android WebRTC application are public on github (https://github.com/cuongth/AppRTCDemo). In these days, I spend free time on Chicago Boss framework and cowboy server.

$22.00 /hr
306 hours
5.00
Aleksandr Z.

Aleksandr Z.

Expert UNIX and network administrator

Russia - Last active: 2 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
Irfan Ahmad

Irfan Ahmad

Expert of Web Design & Development

Pakistan - Last active: 4 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
Jaspreet C.

Jaspreet C.

XMPP/SIP/Asterisk/Android/IOS/chat app Expert

India - Last active: 21 days ago - Tests: 1

I possess positive attitude and single mindedness and passionate about my job. Recognized for handling high-pressure situations in a professional & effective manner & punctual in daily activities. 5 Years of overall experience in team management/programming Android with java , Linux, UI interface building. SKILLS (1) Simply XMPP Expert (2) Android 2.0 to 4.4 (3) Java,J2ME,J2EE and Android (4) Linux (5) Github, SVN Source Code management using Git and Bitbucket (6) Sqlite for database management. (7) XML,JSON,SOAP and RSS Feed parsing. (8) Social Media integration. (9) PayPal, In app purchases, Push notifications (GCM)etc. (10) Social Media Api integration (11) Openfire (12) FFMPEG (13) JAVA Swing (14) Chat app

$15.00 /hr
920 hours
4.66
Truong Viet Ha

Truong Viet Ha Agency Contractor

VoIP & Web Developer

Vietnam - Last active: 3 days ago - Tests: 6 - Portfolio: 6

==================================================== VOIP and Web developer with more than 4 years experience. ==================================================== On VoIP field: ------------------ + I have strong skills on Asterisk, Kamailio, FreePBX, FreeSWITCH. + My favorite languages: Python, C++, PHP + I also used to VOIP API like Tropo, Vitelity, Twilio... On web developing field: --------------------------------- + I have strong skills on HTML/CSS, JS, NodeJS + I used some web framework like: Wordpress, Django, Codeigniter, Meteor ... Team management: --------------------------- Currently I am project manager of Designveloper JSC, with 18 developers and 2 designers.

Associated with: Designveloper
$22.22 /hr
1,385 hours
5.00
Karan Dua

Karan Dua Agency Contractor

Iphone developer

India - Last active: 5 days ago - Tests: 3

I have 5 years of experience in IT industry. I have good expertise in iPhone development, HTML, CSS, Javascript, xCode, Cocoa Touch, Corona, Cocos2D, Sencha Touch, PhoneGap, RestKit APIs, Coredata, VoIP, XMPP, SIP Server, Jabber, java, eclipse, Social networking web services, Google web services,etc. I like to program. I like complex and diverse assignments that keep my mind sharp and allow me to constantly learn new things.

$22.22 /hr
1,365 hours
5.00
Salim R.

Salim R. Agency Contractor

Software Engineer with J2EE and APIs experience

Lebanon - Last active: 5 days ago - Tests: 4 - Portfolio: 8

Passionate in Web development and business analysis, 5+ in software development and QA, I have been working with multiple teams where I have developed Web based applications using J2EE/PHP. My Portfolio: http://bit.ly/1iIPB7S Projects I have been working on: - SIP/VOIP Java desktop application that monitors other contacts status - ISAE-Cnam Liban educational Information System (present) - Compressus MedXConnect medical system, worked on the core engine My skills cover the following: 1- Full life cycle software development process, covering analysis, design, testing (White/black box, unit and complete test) and validation. 2- Patching, Junit3/4 3- Writing Business Requirement, technical documentation 4- Tools: Eclipse, NetBeans, Webmin, PhpMyAdmin, GIT, CVS,etc. Maven: Building, testing, packaging, installing 5- Strong Knowledge in project management: Scrum, estimations, conference calls,etc. Online tools: BaseCamp, Jira, Pivot Tracker

Associated with: Super Tech
$38.00 /hr
299 hours
4.97
Oleg K.

Oleg K. Agency Contractor

Senior VoIP/Linux/Network Engineer (dCAP, CCNA, IT...

Russia - Last active: 3 days ago - Tests: 6

I am a Senior VoIP/Linux/Network Engineer (dCAP, CCNA, ITIL certified). I do have experience and offer my services in these areas: VoIP: Asterisk, FreePBX, Elastix, A2billing VoIP Security & Tuning VoIP Integration Network Administration: Cisco, HP System Administration: Linux (expert), BSD*(proficient) Network Monitoring & Management: Zabbix, Cacti, NOC Mail services: Postfix, Exim, Dovecot, Cyrus, Spamassassin Virtualization: Qemu/KVM, OpenVZ, Proxmox High availability: VRRP, CARP, DRBD, GFS2, GlusterFS, cman, Pacemaker Common services: DNS, DHCP, File Sharing, NAT, iptables, ipfw Scripting: Bash, Python Web servers: Apache Database servers: MySQL, PostgreSQL Etc…

Associated with: NemBit
$36.00 /hr
274 hours
4.98