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Gohar A. - VoIP Consultant [Asterisk, freeSWITCH, Kamailio, OpenSIPs, Vyatta]

Gohar A.

VoIP Consultant [Asterisk, freeSWITCH, Kamailio, OpenSIPs, Vyatta]

$60/hr
156 hours
Canada
91% JOB SUCCESS
“Cannot recommend higher. Very skilled specialist. For sure, we will work again.”
  • SIP
  • Asterisk
  • Freeswitch
Vijay S. - Expert in SMS Gateway (Twilio, Plivo), OpenVBX, SIP

Vijay S.

Expert in SMS Gateway (Twilio, Plivo), OpenVBX, SIP

$14/hr
2,871 hours
India
90% JOB SUCCESS
“Always available and very adaptable to changes.”
  • Twilio API
  • SMS Gateway
  • SIP
Mikhail L. - Engineer Support networks and PBX

Mikhail L.

Engineer Support networks and PBX

$29.99/hr
122 hours
Russia
99% JOB SUCCESS
“Excellent!”
  • Asterisk
  • SIP
  • FreePBX
  • Elastix
Arsen S. - VoIP Administration & Development

Arsen S.

VoIP Administration & Development

$55.56/hr
884 hours
Bulgaria
97% JOB SUCCESS
“a real pro when it comes to Asterisk. Available within a short time. Very friendly. Very clear communication and excellent english skills.”
  • Asterisk
  • Freeswitch
  • SIP
  • PHP
Viktor P. - Video Streaming & VoIP Full stack Developer

Viktor P.

Video Streaming & VoIP Full stack Developer

$50/hr
75 hours
Ukraine
100% JOB SUCCESS
“Viktor was knowledgeable and fast. He was responsive and checked in daily. Produced a quality demo with useful information. Exactly what I asked for!”
  • iPhone App Development
  • SIP
Igor O. - VoIP and Linux Engineer

Igor O.

VoIP and Linux Engineer

$30/hr
167 hours
Ukraine
100% JOB SUCCESS
“First: we still work together and I hope for a very long time. We just end the contract on upwork (we have another framework now). Why Igor? Let's see: Igor is a classic academically...”
  • VOIP Administration
  • SIP
Yuriy N. - VoIP/Freeswitch/Asterisk/OpenSIPS/Kamailio/Linux/Network/ Enthusiast

Yuriy N.

VoIP/Freeswitch/Asterisk/OpenSIPS/Kamailio/Linux/Network/ Enthusiast

$40/hr
1,187 hours
Russia
94% JOB SUCCESS
“The contractor completed all tasks successfully in a timely and professional manner.”
  • SIP
  • Freeswitch
  • OpenSIPS
  • Lua
Piyush J. - Cisco Voice Expert - CCIE Collaboration # 40173

Piyush J.

Cisco Voice Expert - CCIE Collaboration # 40173

$27.78/hr
312 hours
India
95% JOB SUCCESS
“Great experience and will be happy to hire again soon.”
  • Cisco IOS
  • SIP
  • cisco routers
alexander M. - Asterisk/voip/a2billing/freepbx/kamailio expert

alexander M.

Asterisk/voip/a2billing/freepbx/kamailio expert

$67.77/hr
614 hours
Ukraine
92% JOB SUCCESS
“A very pain free job. What few issues we came across were very quickly identified and resolved, even at hours well outside of his local work day.”
  • Asterisk
  • OpenSIPS
  • A2Billing
Geraint J. - Linux - LAMP - Windows - EC2 - S3 - Vyatta - Cisco - VPN

Geraint J.

Linux - LAMP - Windows - EC2 - S3 - Vyatta - Cisco - VPN

$94.44/hr
697 hours
New Zealand
94% JOB SUCCESS
“Geraint is a true professional! I can’t recommend him highly enough – he is knowledgeable, capable and responsive. Looking forward to working with him again.”
  • VPN
  • OSPF
  • SIP
  • Oracle database
Volodymyr S. - Senior front end developer (HTML, JavaScript(Angular, Ionic), Flex

Volodymyr S.

Senior front end developer (HTML, JavaScript(Angular, Ionic), Flex

$30/hr
4,584 hours
Ukraine
97% JOB SUCCESS
“Volodymyr has done some great work for us. I hope all the best for him in the future. I would definitely use him again if needed.”
  • JavaScript
  • Adobe Flex
  • HTML
Aram M. - Video Audio Streaming, VoIP, IPTV, Mobile

Aram M.

Video Audio Streaming, VoIP, IPTV, Mobile

$33.33/hr
2 hours
Armenia

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