VoIP, otherwise known as Voice over Internet Protocol, is a digital solution for telecommunication that utilizes the transmission of voice through the use of data over the internet. This technology is typically adopted for both commercial and privately used applications. VoIP developers specialize in programming telecommunication systems using data transmission to provide efficient services for audio and video functions.

VoIP developers are highly sought after professionals as they can create a versatile and advanced system for both desktop and mobile devices. This can include creating a more interactive experience for customers with multi-way calls, conference calls, video conferencing and voicemail systems. VoIP developers can set up your business’s phone system such as forwarding calls remotely to other devices with extensions or even communicating with customers utilizing software like Callcentric, Flowroute or Voxbone.

Here's some projects that our expert VoIP Developer made real:

  • Secured and configured private networks by implementing security measures like IP SLA, NAT and ACLs
  • Integrating SIP trunks between billing platforms, PBXs and VoIP applications
  • Setting up Postfix mail server on Linux systems with TLS authentication and encryption
  • Installing and configuring sip telephony software like ASTPP into businesses
  • Developing web applications that can send and receive SMS messages utilizing VoIP APIs

Our expert VoIP Developer have created numerous projects to help business owners manage their telecommunications in a professional bet. Our developer have an array of experience in creating a secure and reliable system customized to each client demands. If you're looking to improve or create your business’ communication system, then post your project today on Freelancer.com to hire one of our skilled professional VoIP Developers today!

Asiakkaamme antoivat 28,733 arvostelussa keskimääräisen arvosanan VoIP Developers 4.8 / 5 tähteä.
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    21 työtä löytyi, hinnoittelu EUR

    Sales Generation for VoIP Company - Paid on Results Only Telesales Target Market: Small businesses VoIP Services: Business VoIP services Sales Generation Expectations: 1-10 sales per week Skills and Experience Needed: - Proven track record in telesales and lead generation - Excellent communication and persuasion skills - Knowledge of VoIP services and their benefits for small businesses - Ability to identify potential clients and tailor sales pitches accordingly - Experience in meeting sales targets and working on a commission-based structure - Familiarity with CRM software for tracking leads and managing sales pipeline Project Details: - We are a VoIP company specializing in business VoIP services. - We are looking for a skilled telesales professional to generate sales for our compan...

    €605769 (Avg Bid)
    €605769 Keskimäär. tarjous
    2 tarjoukset
    API intergration 6 päivää left

    Integrate VOIP software into CRM system

    €313 (Avg Bid)
    €313 Keskimäär. tarjous
    35 tarjoukset

    I am looking for a developer to develop a call forwarding pannel and pbx panel on freeswitch voip. The call forwarding panel and pbx panel should include advanced call forwarding with scheduling and should include integrated voicemail and call recording. I am not sure which VoIP provider to use and would appreciate advice in this regard. I am targeting completion within a month. The successful developer will be knowledgeable and experienced in using freeswitch VoIP in order to complete the project. If this project is completed to my satisfaction, I will consider having the developer complete additional projects with me. Looking forward to hearing from an interested and qualified candidate. No asterisk Candidate. Only Freeswitch other voip developer only.

    €655 (Avg Bid)
    €655 Keskimäär. tarjous
    16 tarjoukset
    Freepbx configuration 4 6 päivää left
    VARMENNETTU

    I have a VOIP PBX based on Freepbx with 2 extension . I need to do the following configurations: 1) When a call comes in, both phones must ring; 2) If the call is answered from one of the two phones and in the meantime another call comes in, the caller must simply get the busy signal 3) While talking from one of the two telephones it must be possible to make a call from the other, i.e., the one that is not busy. 4) When a call comes in, and no one can answer, after a certain number of rings (8) play message "operator not available try again later". 5) The answering machine should answer only when it is activated with the night and day option with code *280

    €37 (Avg Bid)
    €37 Keskimäär. tarjous
    13 tarjoukset
    jerasoft Billing 5 päivää left
    VARMENNETTU

    need some one give me training jerasoft for part related to voip retail

    €19 (Avg Bid)
    €19 Keskimäär. tarjous
    1 tarjoukset

    I need asterisk to do the following: 1. asterisk Dial to callee 2. Callee pick up the call and the call is answered/ bridged 3. After X seconds, asterisk will inject DTMF tone 4. Caller will not be able to hear the DTMF.

    €396 (Avg Bid)
    €396 Keskimäär. tarjous
    5 tarjoukset

    Receive phone calls (with the api of Twilio, or Vonage, Telnyx, etc) for payment and the clients Pay with with Stripe or Paypal online to call at these virtual italian phone numbers Hello! I just need to set up a buy-form (to insert into a wordpress webpage) that permits me to pay in advance some credit to call some Italian phone numbers (landline or mobile is not important, the cheapest would be the best.. so for example a virtual italian phone number that cost 3 euro monthly, is better of a number that cost 30 euro monthly, also because I will need to configure multiple numbers, at least 4-5 and in future maybe more.. ) and the callers has to pay in advance (with paypal or stripe) the minutes to can call. When pre-paid the credit ends, then the phone call ends too or the credit would Se...

    €191 (Avg Bid)
    €191 Keskimäär. tarjous
    14 tarjoukset
    VOIP platform for small businesses 4 päivää left
    VARMENNETTU

    The budget amount if yearly. Any standard or non specific proposal with the information requested below would be ignored I need a voip platform that allows me to provide virtual phone service to small companies in the USA. My customers are small new companies, most of them with very basic features request and no more than 2 user each (most of them only 1 user), Features required are: 1. private VoIP phone line (with a local US code) 2. can use to call, text, and check your voicemail from your computer or mobile device. 3. Call Forwarding to any U.S. number, 4. Outbound Caller ID Display with the small business company name 5. Ability to cap the amount of minutes per month for incoming and outgoing 6. Generate usage reports Each company should not be able to see any configuration or listi...

    €2289 (Avg Bid)
    €2289 Keskimäär. tarjous
    50 tarjoukset
    Call center ( auto dialer software ) 3 päivää left
    VARMENNETTU

    I am looking a Call center ( auto dialer software ) person who install or work on such type of system if you have experience then contact us ..

    €2345 (Avg Bid)
    €2345 Keskimäär. tarjous
    15 tarjoukset

    I am looking for a freelancer who can assist me with setting up a trunk in fusionpbx for outbound termination (not inbound). I currently use as my VoIP provider outbound termination. Requirements: - Set up Fusionpbx trunk for outbound termination - Implement necessary configurations for proper functioning of the trunk - include step by step instructions of what needs to be done to accomplish it Skills and Experience: - Strong knowledge and experience in Fusionpbx and - Expertise in configuring and setting up VoIP trunks - Familiarity with Caller ID features and call routing - Ability to troubleshoot and resolve any issues that may arise during the setup process Please specify any specific requirements or features you would like to implement so that I can provide you with the best a...

    €23 (Avg Bid)
    €23 Keskimäär. tarjous
    3 tarjoukset
    3CX Installation on Digital ocean 3 päivää left
    VARMENNETTU

    Install 3CX PBX on digital ocean using dataphone as a SIP provider . You must have installed on digital ocean before or used dataphone as a SIP provider. You need to successfully get the 3CX working to complete the project. Regards

    €167 (Avg Bid)
    €167 Keskimäär. tarjous
    8 tarjoukset

    Project Description: - I am looking for a freelancer to provide phone number verification services. - The main focus of the project is to verify phone numbers for a specific country. - The freelancer should have experience in providing phone number verification services. - No assistance with the setup process is required, as the client only needs verification services. - The ideal freelancer should have knowledge of the specific country's phone number verification requirements and regulations. -Must be real numbers from a sim card. No VOIP

    €42 (Avg Bid)
    €42 Keskimäär. tarjous
    2 tarjoukset
    Sip dialer for Android 2 päivää left
    VARMENNETTU

    I am in need of a skilled Android developer to create a sip dialer application for me. The application should have the following features: - Call recording - Call transfer - Video calling (optional, but preferred) I am unsure if I require any form of encryption for the calls, so the developer should have experience in implementing secure communication protocols. While I do not have a specific design in mind, I would prefer a user-friendly interface for the dialer. The developer should have experience in creating intuitive and visually appealing user interfaces. Overall, I am looking for a reliable and experienced Android developer who can create a high-quality sip dialer application with the aforementioned features and a user-friendly interface.

    €22 (Avg Bid)
    €22 Keskimäär. tarjous
    3 tarjoukset
    Need help with Twilio ring group 1 päivä left
    VARMENNETTU

    Currently my calls are submitted to a TwiML App for tracking using dial verb and saving call data to db. I need somebody to expand on this and add a ring group when calling where it: 1. Plays a message or Says a message to caller 2. Ring up to 4 numbers (depending on setting) at the same time (example: 951-222-2222, 951-333-3333, 951-444-4444) 3. When a recipient picks up, Twilio will <say> message "You have a call for {company_name}, press any key to be connected" 2x 4. Recipient will have 3 extra seconds to press any key <gather> to be connected. before a disconnect 5. We continue to ring all other numbers until the first person presses a digit to be connected 6. We stop all other calls (once recipient presses a digit) 7. We play message that recipient hears &quo...

    €223 (Avg Bid)
    €223 Keskimäär. tarjous
    29 tarjoukset
    Sippy soft switch installation 1 päivä left
    VARMENNETTU

    Hey, I need a voip expert to install sippy softswitch on my server.

    €500 (Avg Bid)
    €500 Keskimäär. tarjous
    25 tarjoukset
    set up freeswitch for voice call 18 tuntia left
    VARMENNETTU

    Hi. Our backend is node.js and frontend is KMM. We need a setup for voice call by freeswitch. If you experience of this , i love to talk about the task. it's for application call between user (one to one)

    €507 (Avg Bid)
    €507 Keskimäär. tarjous
    16 tarjoukset

    OpenWRT Module for a Wireless Router Specific Features: - Wireless security - Traffic shaping - VPN support Preferred Wireless Router Model: - Client will provide the router Level of Expertise Required: - Expert We are seeking an experienced developer to create an OpenWRT module for a wireless router. The module should provide an API for mobile testing features which the client will provide. This module will drive two modems embedded inside the router. The client will also provide the router for the project. We require an expert level of expertise for this project.

    €2262 (Avg Bid)
    €2262 Keskimäär. tarjous
    14 tarjoukset

    I am seeking an expert in Plivo VOIP and PBX IVR configuration to assist me with my project. Specifically, I need assistance with setting up IVR menus and configuring call routing. For call routing, I do not have a preferred strategy, so I am open to suggestions. I need someone to setup to do IVR, setup greeting message, music on hold, voicemail, hours of operation routing and etc. If you are hired, I will provide Diagrams and prerecorded audio files. You must have all necessary skills and experience working with Plivo. Calls will be routed to a mobile app that you recommend unless Plivo has one. Ideal skills and experience for this job include: - Extensive knowledge of Plivo VOIP and PBX IVR configuration - Experience in setting up IVR menus - Proficiency in configuring call ro...

    €16 / hr (Avg Bid)
    €16 / hr Keskimäär. tarjous
    9 tarjoukset

    I am looking for a freelancer who can help me with the customization, configuration, and integration of Odoo CRM. Odoo CRM - 1 Database Lead provider will give us the lead from they're dashboard through API, they're dashboard will be connected to our dashboard via api. We need to be able to report the leads, For example, we got 100 leads and 10 are fake so we can mark the leads and report to the provider. also for 10 fake we won't pay. some thing like this. All client database will be connected with the main database through a connector. cleint will get the lead details from our database and we also need to get the report of the leads from client dashboard. then the report will be sent to the lead provider. Ideal skills and experience for the job: - Strong knowledge a...

    €491 (Avg Bid)
    €491 Keskimäär. tarjous
    16 tarjoukset

    el proyecto es el siguiente nesecito una persona que pueda ser un servidor o una pagina web donde pueda ser una llamada y recibir la respuesta de esa llamada en una archivo json o en una base de datos

    €614 (Avg Bid)
    €614 Keskimäär. tarjous
    21 tarjoukset

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