Voice over Internet Protocol or VoIP refers to a host of transmission technologies meant to deliver voice communications over IP networks that include packet switched networks and Internet. VoIP systems include communication services such as facsimile, voice, and voice messaging applications. A number of firms are shifting to this system to promote a cost effective medium of communication. You can hire an expert who can help your firm to leverage the potential of this new system. Just post a job today! From 31941 reviews, clients rate our VoIP Developers 4.81 out of 5 stars.
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    21 jobs found, pricing in USD
    Softswitch 6 days left

    We need a Softswitch developer

    $1412 (Avg Bid)
    $1412 Avg Bid
    8 bids
    PBX + chat 6 days left
    VERIFIED

    Hello I need server configuration for PBX include chat, you should have previous experience in server configuration. our application is only android and you should build the server side. project requrments is: 1. internal voice call 2. chat 3. group chat i am only working with exprienced developer in this field

    $550 (Avg Bid)
    $550 Avg Bid
    9 bids

    IM LOOKING VOIP PROVIDER USA BEST ROUTE

    $620 (Avg Bid)
    $620 Avg Bid
    5 bids

    Setup asterisk server with VOXBEAM

    $26 (Avg Bid)
    $26 Avg Bid
    3 bids

    mid-register support / Dynamic Routing / Dialplan manipulation we require someone to review our setup... setup TLS / mid-register support / Dynamic Routing / Dialplan manipulation etc. Needs the ability to work Eastern Standard Time hours for supporting us and our clients

    $23 / hr (Avg Bid)
    $23 / hr Avg Bid
    21 bids

    Hello Guys, We are looking for someone who can help us to setup a multi tenant freePBX to start a basic Toll Free Number providing services to local businesses.

    $179 (Avg Bid)
    $179 Avg Bid
    6 bids

    Hello, We're currently seeking a service provider with previous experience in Flutter or React Native to build an application for multiple platforms like IOS & Android. The candidate should have previous experience in building communication applications and also have a strong understanding of how VoIP, PBX, Asterisk work & interact behind the scenes. The app will be integrated with the open-source system, Asterix. The goal of the project is to replace the existing 3rd party solution we're currently using called Zoiper. If you have experienced in building communication apps and understand Asterix, VoIP, FreePBX & Flutter, please reach out for more information. We have AdobeXD designs & technical specifications document with use cases which I can shar...

    $7080 (Avg Bid)
    $7080 Avg Bid
    80 bids
    Vicidial Server Expert 5 days left
    VERIFIED

    Need immediate Vicidial Security Linux Expert

    $18 / hr (Avg Bid)
    $18 / hr Avg Bid
    12 bids
    Grandstream VOIP 4 days left

    Have a Granstream UCM6208 New PBX . He needs help configuring it for two landlines and two phone extensions. We are creating Group Intercome. We could create a remote session. Please provide a price quote. Also, I need documentation on how to add additional extensions when required.

    $138 (Avg Bid)
    $138 Avg Bid
    6 bids

    Looking for a Class5 Soft Switch based on FreeSwitch with Android and IOS APP. *Account Management *Calling Cards *Rate Groups / Tariffs *Call Routing Strategies *Call Rates *DID Management *Product Management *Invoicing and Billing *Reports and Alerts *System Settings *Payment Gateways

    $1561 (Avg Bid)
    $1561 Avg Bid
    8 bids
    OpenSIPS B2BUA 4 days left

    We need assistance in setting up OpenSIPS as a B2BUA between a PBX and an SBC. The B2B will also need to manipulate the SIP Header info on egress.

    $616 (Avg Bid)
    $616 Avg Bid
    6 bids

    My FreePBX Server is having issues with call deployment due to the firewall and fail2ban. I need someone who has hands on knowledge of configuring it all way to make it work. I am myself a Full Stack Developer and have good knowledge, so people who really knows what Asterisk SIP Settings and FreePBX Firewall is actually apply.

    $278 (Avg Bid)
    NDA
    $278 Avg Bid
    5 bids

    Our current situation We are a call centre and have been on the market for many years. We operate a classic telephone service / telephone secretariat. We are currently working with a call centre operator panel, which is not really available on the market. Unfortunately, our current system is based on a Java application for Windows computers. This system is very outdated and tedious to manage. When we want to train new staff, we always have to go through the hassle of downloading the programme, turning off some Java security mechanisms and adding a URL to the whitelist. In addition, the user is not allowed to update Java, otherwise nothing will work. This operator panel is connected in the background with two other Java applications and a physical telephone system (multiplexer) in...

    $3809 (Avg Bid)
    $3809 Avg Bid
    44 bids
    ASTPP & FusionPBX expert 2 days left
    VERIFIED

    Hello, I am considering to adopt new deployment using ASTPP for billing to be integrated with FusionPBX utilizing the multi tenant IPPBX typically ASTPP will handle the billing aspects for voip termination and DIDs origination (we currently use IDT Express and ) then map it conveniently to the PBX tenant I will surely avail both cloud VMs with the base OS as per you recommendations most likely will be Debian as per the documentation or of you want me to setup boh ASTPP and FusionPBX beforehand that would be ok too and then you will just help me onboarding with the initial setup, configuration, interconnection and integration between both VMs and between ASTPP with both and IDT to be acquainted with the full picture and end to end cycle. please note that I already have ASTPP server up ...

    $246 (Avg Bid)
    $246 Avg Bid
    5 bids
    suiteCRM and Freepbx 1 day left
    VERIFIED

    We would like to setup a Asterisk callcentre with suitecrm. . The asterisk needs to be integrated with suitecrm with callpopup , call logs and other standard features. For the CRM it needs to work with messenger ,email , whatsapp We won't like to use any 3rd party addons that we need to pay yearly or monthly. Only offer if you can build the connections yourself.

    $222 (Avg Bid)
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    5 bids
    help me to understand 3cx 23 hours left
    VERIFIED

    i want to use 3CX but need someone with experience here to help me set up. You must have previous experience with this product .""

    $12 / hr (Avg Bid)
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    3 bids

    Can't log into Cisco Access Point air-ap3802i. Set up web based, don't know what went wrong password not working. might need to be re configured.

    $207 (Avg Bid)
    $207 Avg Bid
    19 bids

    Hi I moved one Fusion PBX server to another. The destination server crashes every few days or less and does not come back without a restart. And it is not possible to connect via ssh when the server is down. And in my opinion, this is a problem in Linux and not in the aforementioned application. The operating system is CentOS 7 If you know the problem and know how to solve it - please contact me. I am attaching a picture of the console when the server is down

    $75 (Avg Bid)
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    2 bids
    Install ASTPP add on Ending left
    VERIFIED

    I have an installation of ASTPP.. It does not have the Get Add-on icon.. I need to get the Get Addon icon back. I need to verify what edition on the software that I have..

    $22 (Avg Bid)
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    4 bids

    we are looking for a very experienced Java senior developer, tech lead or architect. Second mandatory senior expertise and experience is about integrating SIP (VoIP) into a Java Applications with different available java SIP libraries What will be required? We will define a call, we go hands on through best ways of integrating SIP / VoIP into a Java application, which may run on a backend but also on a frontend (desktop/laptop) You will discuss with our Java product owner about integration options of SIP into Java. You are a good fit, if you have: - used SIP already in multiple real life java projects - used SIP phone handling in real life java projects you are a bad fit, if you have never done tasks of integration SIP into Java A simple test task for seniors in SIP+Java: - listen to ...

    $373 / hr (Avg Bid)
    $373 / hr Avg Bid
    16 bids

    Your task is to implement a JUnit callable method/function (Java), which detects incoming SIP/VoIP calls and opens a browser with a URL. The URL contains some query parameters, like the callers number. As a UI-less (cmd line only) app on the desktop it will be so a simply app which does basically a call listening and triggering a browser based URL to show. The listener shall be configurable, means - what URL to call - which phone numbers to ignore - which phone numbers to track (regEx) Please recommend what to use SIP-RI/SIP-Jain to detected phone calls. You will get a SIP/VoIP account to be able to implement and test incoming calls (if you do not have your own) Your task is to implement Java classes to be able to access details of incoming calls as a listener. Implement JUnit test...

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    23 bids

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