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Sip Jobs

31 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

Fixed-Price - Est. Budget: $ 10 Posted
Hello. Today I'm looking for a professional Asterisk/FreePBX programmer, that knows about DialPlan writing and maybe other interfaces of Asterisk. I need a simple application that allows users to log-in the voice menu, and be able to record a message,... more

Fixed-Price - Est. Budget: $ 2,000 Posted
The objective of the project is to modify the existing FaxServer solution based on Hylafax and Asterisk. Current solution supports T.30 protocol with SIP Trunks and G.711 (Asterisk with IAX modems). Modified solution should provide SIP interface (SIP... more

Hourly - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
Our company currently uses over 1,000 different VOIP local phone DID numbers. We currently pay .99 per number per month through Ringcentral. Our plan gives us the minutes we need (around 15K/month) and 5 users, a phone tree, departmental extensions,... more

Fixed-Price - Est. Budget: $ 2,500 Posted
Essentially what we're looking for is an app just like Zoiper, but much more bare-bones and with our own company logo instead. Zoiper: http://www.zoiper.com/en/screenshots#mobile-ios http://www.zoiper.com/en/screenshots#mobile-android Main idea... more

Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
Looking for a Voice Network Engineer who has experience in gateway, Gatekeeper, CUBE, CUCM. Working knowledge of VoIP based phone systems, H.323, G711, SIP, RTP, TDM, and PSTN. Call Routing Analysis. Networking and security experience.

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
Tech Support is a vital position for our business. Our Company, being on outsourcing and offshoring increasingly rely on computer systems in all areas of our operations and decision-making processes. It is very crucial for the Tech Support to ensure... more

Hourly - Est. Time: More than 6 months, 10-30 hrs/week - Posted
We're looking for someone who has experience working with ASTPP and integration with Kazoo open source or another offering. We would be using ASTPP for SBC, Rating, Billing, Account Management, Customer Number Management (APIs to carriers), Customer Accounting,... more

Fixed-Price - Est. Budget: $ 500 Posted
Mitel Phone System For a Motel (a customer of mine) 101 Analog Phones 1 IP Phone for reception All equipment provided even a modem for remote dial in. Will need to answer some questions before we can approve the work, please message us and... more

Hourly - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Hi, KNOWLEDGE OF SIP ENCRYPTION & VPN IS A MUST I have a pre-existing Asterisk server running and require the assistance of someone with extensive knowledge of the SIP protocol and management of Asterisk. There is a server currently running but... more