You've landed at the right place. oDesk is now Upwork. Learn about the new platform.

Sip Jobs

24 were found based on your criteria

Category

Job Type

show all

Client History

show all

Project length

show all

Hours per Week

show all

Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
The TCP/IP VOIP Engineer will be providing functional and practical analysis related to the installation of the communication networks. The TCP/IP VOIP Engineer will be given the responsibility of Designing, maintaining and improving voice and telephony... more

Fixed-Price - Est. Budget: $ 1,000 Posted
I need very experienced server guy who have knowledge of VoIP, Asterix, A2Billing, call forwarding, callback, webrtc, video, Nat, firewall, Messaging. I have server with everything configured and running perfectly, i have one iOS and one Android app... more

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Develop extensions to Freeswitch and deploy for carrier grade systems. Must have experience with Freeswitch internals and application experience with Asterisk. Must have previous carrier grade deployment experience and understanding of the needs of production... more

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Develop integrate Sipwise, Kamailo and Asterisk to implement custom API. Launch to production and maintain. Assist in ongoing support enhancing API. Must have strong carrier grade deployment experience and be able to bring up from source test enhance... more