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Sip Jobs

37 were found based on your criteria

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Fixed-Price - Est. Budget: $ 300 Posted
We need to setup a kamailio + RTPproxy multi-domain SIP proxy server with registration passthrough and proper RTP nat configuration that allows reinvites (or direct media) between peers and to manage outbound media from-and-to multiple NATed asterisk... 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: Less than 1 month, Less than 10 hrs/week - Posted
We're looking to build capacity within GoAutoDial (based on Asterisk), or would be open to another Asterisk-based campaign tool, so that a campaign can be set to automate outgoing calls. The outbound IVR would require the following functionalities: -Ability... more
Skills: Asterisk FreePBX SIP

Hourly - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
Our company has a phone system that was developed ad hoc and on a as needed basis. We would like to upgrade to Asterisk PBX. In this upgrade we would like the following functionality to be delivered. 1. Recording of all outbound and incoming calls 2.Monitor,... more

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