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Sip Jobs

36 were found based on your criteria

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Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
We are looking for a Linux System administrator that know Centos, pfsense, mikrotik OS, VoIP, Docker container we are doing a VoIP project and are looking for a long term part time could lead to full time. Please contact us.

Hourly - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I have a custom built, telephony app built using Freeswitch to broadcast calls. I would like to discontinue hosting Freeswitch software and use a 3rd party or SAAS service instead. I am familiar with Newfies and open to using Asterisk or other solution... more

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Install Kurento Server and develop custom API, and introduce into production and maintain. Must have strong experience in SIP and WebRTC technologies. Must have proven experience with Kurento Server and interfacing with Freeswitch. Skilled at efficient... more

Hourly - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
We seek someone to create a step-by-step guide on how to setup fax for asterisk and with freepbx as front-end. We need screenshots. Will be setup for client containers running on vmware. Must know how to fix eth0 challenge with vm containers for this. 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

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Install Doubango Telepresence Server and develop custom API, and introduce into production and maintain. Must have strong experience in SIP and WebRTC technologies. Must have proven experience with Doubango Telepresence Server. Skilled at efficient bring... more

Fixed-Price - Est. Budget: $ 2,000 Posted
We are looking for skilled people who have proven experience with developing SIP VoIP Apps for both Android and iOS. For example an APP like Viber Only apply if you have developed one of these type of APPs before. The knowledge must be more than... more