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Sip Jobs

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Hourly - Intermediate ($$) - Est. Time: More than 6 months, 30+ hrs/week - Posted
We are looking for creative and motivated software developers to improve our XMPP-based front-end and back-end software stack in a long term partnership. Knowledge of various debugger tools like Firebug and IE Developers tools, Mobile UI development, Cross browser designing and developing experience. We work with cross-cultural and global teams, which require virtual communication skills, pro active behavior and the willing to think and act solution oriented. The developers must have experience working with responsive UI, cross browser front-end development. Linux and XMPP know how is appreciated. * good English skills (Both reading and writing) * experienced with GIT * fast learner, self-directed, work well with others * experienced in Ajax / JavaScript, willing to work with a new framework * experienced in Java / J2EE / JSP / servlets (Zimbra) * experienced JavaScript, HTML, DHTML, XHTML, CSS skills * Backend and Frontend experience is appreciated * XMPP, WebRTC, VoIP experience * Linux knowledge * nice to have: Java, Bash, Perl, Python * Networking (IPv4, IPv6, HTTP, TLS, network security, encryption, TCP/UDP, server-client architectures, mesh architectures, peer2peer, VPNs) Also Zimbra knowledge is beneficial.
  • Number of freelancers needed: 2
Skills: SIP AJAX AngularJS CSS
Fixed-Price - Expert ($$$) - Est. Budget: $2,000 - Posted
Hi there create a VOIP site i want my own voip with all the features like other voip providers i even want my own chatting apps , pc apps, and website it should have voice, video, text and other features and can we create sdk, minutes or no like other voip sites for example like skype, oovoo, vsee so on it should be fully automated system and do you provide bug fix, version upgrade, support and maintenance are you going to use open source or create from start or you already have or your choice and if possible try to make it fast please let me know what you require and how much time and cost me please note this project is for limited time i am posting if i don't get good response i will remove or with in time i am looking i don't get thanks
Skills: SIP Android App Development Blackberry app development HTML5
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
This is a MS Voice test bed for SIP trunk compatibility testing to allow Skype For Business to make and receive calls via external VoIP provider. ... It must allow - local Skype for Business client registration - SIP Invites will be sent to provider's external SIP proxy to initiate a call in E.164 format i.e. ... It must allow - local Skype for Business client registration - SIP Invites will be sent to provider's external SIP proxy to initiate a call in E.164 format i.e. SIP/4420812345678@proxy_hostname - Lync requires TLS+SRTP, sip provider only supports TLS - mode change required - receive inbound calls to active SIP proxy registration - our understanding is that we only need two servers: one with DC, another one with front end and mediation server roles colocated, feel free to correct this.
Skills: SIP Microsoft Lync Server Microsoft Server Skype
Fixed-Price - Intermediate ($$) - Est. Budget: $1,000 - Posted
Hello We want to develop and automated telephone system we have an asterisk server which is not operational yet. We have an SQL server table where Vehicle and its pin code is saved. What we need is? When an entry comes to an SQL Server table lets say alarm (I can copy that to MYSQL or Asterisk Database) then aasterisk should automatically calls the number and ask "PLEASE ENTER PIN CODE" as user enters it would authenticates the PIN and then Ask the USER"Are you travelling in vehicle?" If he press one then No issues if press 2 then logs then entry in the database from where I will copy it to SQL SERVER BACK.
Skills: SIP Asterisk FreePBX VOIP Software
Fixed-Price - Intermediate ($$) - Est. Budget: $700 - Posted
I would like to build a VPN Tunnel server to bypass firewalls. Can u do this job? Once completed we will build to bypass firewalls and blockages of VoIP blocked countries and link it to our dialers so clients in those countries can use their dialers and make calls since there VPNs will bypass those blockages. This is essentially necessary in that it will help to bypass firewalls and VoIP blockages set by some countries that restrict VoIP in their countries especially in the middle East.
Skills: SIP Asterisk Linux System Administration Network Administration
Fixed-Price - Expert ($$$) - Est. Budget: $1,500 - Posted
want an chatting app and desktop app and website or only chatting app and website is also ok i want chatting in all four like ios, android, windows, blackberry or if not possible even with ios, android and website let me know and if require voip, sip or voipswitch tell me whether we shall use paid or open source and which one you plan to use and if paid which one and do we get this life time licence or if no life time licence then how much does it cost or if yearly then how much coming to features like all top chatting apps have like skype, viber, whatsapp it should have video calling, video conference, voice call , voice conference, messaging, group chat, file sharing, photo and video sharing, geo location sharing, dialing numbers or calling numbers or calling international which is paid(we can see in skype - call),don't know correct term for this if non users then send link and make them join to chat like now skype as, need translator, and some more features and if you suggest or give idea is also welcome and if i get idea or suggestion i will let you know and do we require this oovoo, vsee, webrtc, opentok sort of things, or voip, voipswitch, sip, sort of thing how much time required for this and how much does it cost me to get like skype, whatsapp, viber please tell me regarding this and your suggestion i may close this if i don't get any good response or by the time i want thanks ... want an chatting app and desktop app and website or only chatting app and website is also ok i want chatting in all four like ios, android, windows, blackberry or if not possible even with ios, android and website let me know and if require voip, sip or voipswitch tell me whether we shall use paid or open source and which one you plan to use and if paid which one and do we get this life time licence or if no life time licence then how much does it cost or if yearly then how much coming to features like all top chatting apps have like skype, viber, whatsapp it should have video calling, video conference, voice call , voice conference, messaging, group chat, file sharing, photo and video sharing, geo location sharing, dialing numbers or calling numbers or calling international which is paid(we can see in skype - call),don't know correct term for this if non users then send link and make them join to chat like now skype as, need translator, and some more features and if you suggest or give idea is also welcome and if i get idea or suggestion i will let you know and do we require this oovoo, vsee, webrtc, opentok sort of things, or voip, voipswitch, sip, sort of thing how much time required for this and how much does it cost me to get like skype, whatsapp, viber please tell me regarding this and your suggestion i may close this if i don't get any good response or by the time i want thanks
Skills: SIP Android App Development Blackberry app development iPhone App Development
Fixed-Price - Entry Level ($) - Est. Budget: $150 - Posted
I need a Plivo Developer to create simple outbound voice and sms interface - Add number purchased from plivo - Add contact numbers - Add contact groups - Send sms to group - Send voice to group - receive Status report I NEED THIS ASAP
Skills: SIP API Development Plivo
Hourly - Entry Level ($) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
We're looking to have SMS/MMS t.38 faxing and Conference Bridge Apps made. SMS/MMS would need to send SMS replies back through email and possibly even start from an email if possible. Would be nice also to have a conference bridge as well with some basic feature sets. t.38 faxing could work with either Plivo or Voip Innovations.
Skills: SIP API Development iPhone App Development PHP
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