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

Voip Software Jobs

55 were found based on your criteria


Job Type

show all

Client History

show all

Project length

show all

Hours per Week

show all

Fixed-Price - Est. Budget: $ 1,500 Posted
We are looking for a team to setup a PRI in India to handle many concurrent outgoing calls so we can send termination to India mobile

Fixed-Price - Est. Budget: $ 500 Posted
We need help setting up a cloud-based open-source call center software. We're not sure the best servers or VOIP providers, so are open to suggestions. Our main goal is to have something like: Elastix VICIDIAL GOautodial Set up from scratch,... more
Skills: VOIP Software

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

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: 3 to 6 months, 30+ hrs/week - Posted
I am looking for a developer to develop an automatic call system. We would import a list of phone numbers and business names, along with a script or a voice recording. The system would call the phone numbers, once a call is answered the system would... more

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