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Sip Jobs

38 were found based on your criteria

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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

Hourly - Est. Time: 3 to 6 months, 10-30 hrs/week - Posted
I require the functionality of a secure voice & instant message system that is encrypted with the best available options on the market. PGP / AES / SSL etc. Below are a few logical steps but the scope of work is to commission various servers with very... more

Hourly - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
I need my Twilio SIP account attached to Vicidial for Termination and Origination (Outbound and Inbound). Please read both the Vicidial documentation and SIP documentation on this before applying. https://www.twilio.com/docs/sip-trunking/sample-configuration http://www.vicidial.org/store.php(The... more

Fixed-Price - Est. Budget: $ 100 Posted
What we need its a vary small setup with 3-4 GSM cards and 1 PSTN line. All this needs to be directed to one SIP.(Ofcourse if line is busy need to be signaled for this and caller must wiat). We would like to use GSM FWT to PSTN because in this manner... more

Fixed-Price - Est. Budget: $ 50 Posted
We have a Kamailio Server is up and running. We need a PHP Server-Side (JSON response where needed) to allow: * user login (synced with Kamilio) * user logout (synced with Kamilio) * user registration (simple user/password/email will do) * get... more
Skills: json PHP SIP

Fixed-Price - Est. Budget: $ 100 Posted
I needs a android sip dialer with source code . the dialer should be with built in VPN. The haired developer should have previous expirience in this field the develop will have to explain every things that how app works and how SIP works. the... more

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