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!

From 29,329 reviews, clients rate our VoIP Developers 4.86 out of 5 stars.
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    16 jobs found, pricing in AUD

    I'm looking for a VOIP service provider that can bolster my international connectivity. • Service Required: I'm specifically interested in enabling clear and reliable voice calls, no need for video or conference services. • Area of Coverage: This service should cater to an international scale, allowing seamless communication worldwide. • Volume: Anticipate less than 50 calls per day for starters, but the service should be scalable to accommodate potential increase in volume. Ideal Skills and Experience: • Expertise in VOIP Solution • Proven track record with international voice call services • Capacity to commit to a reliable, high-quality service.

    $748 (Avg Bid)
    $748 Avg Bid
    11 bids

    Seeking an experienced developer to enhance our existing dongle voice SMS termination system with chan dongle and asterisk on Linux using custom firmware. The main focus will be on three key aspects: voice call termination, SMS termination as well as custom firmware development. While keeping the focus on the dongle voice SMS termination system, you will also need to utilize your Java skills to ensure seamless integration with our Linux server control system. Skills & Experience - Developing firmware - Working with chan dongle and asterisk on Linux - Java programming I invite applicants who can showcase both their past experiences relevant to this role along with any other skills and competencies that might be beneficial for the execution of this project.

    $81 / hr (Avg Bid)
    $81 / hr Avg Bid
    13 bids

    I am in need of an advanced VoIP developer with specific experience in VitalPBX+Odoo integration. The main problem I am facing is with incoming calls; the webrtc phone from Odoo is not properly receiving them. Thankfully, outgoing calls from this system are working without any issues. But, since the incoming call problem persists, immediate attention to this matter is essential to me. I haven't noticed any other connectivity issue including internal call transfers or conference calls. Ideal freelancers for this project should possess: - Proven experience in VoIP development - Specific knowledge in VitalPBX and Odoo integration - Ability to diagnose and fix the issue with incoming calls - Excellent problem-solving and communication skills I am looking forward to having my system run...

    $92 (Avg Bid)
    $92 Avg Bid
    3 bids
    VoIP System Setup Expert -- 2 5 days left
    VERIFIED

    I need a highly skilled VoIP specialist to set up a VoIP system for less than 10 users. This setup must include features such as voice mail, call forwarding, a business phone, and ability to handle both inbound and outbound calls. Experience with will be a major plus point. The ideal candidate should have a proven track record in troubleshooting and optimizing VoIP performance. Your technical know-how will guide this project to a smooth and successful implementation. We are located in Boca Raton, Florida and are looking for someone to help set up VoIP for our company with I need our number to be ported from Microsoft. I need calls on just this one number to reach my mobile phone and one colleague’s mobile phone, and for us both to be able to make outbound phone calls from that nu...

    $281 (Avg Bid)
    $281 Avg Bid
    8 bids

    I'm looking for an expert in telecommunication and VoIP technology, specifically someone with experience in Asterisk and SIP integrations. Key Project Aspects: - Asterisk Setup: Your task will be to set up Asterisk with multiple features including monitor calls + transfer + hang up calls, an IVR system, and call recording. I require a high level of accuracy and efficiency in the configuration of these features. - SIP Service Connection: Additionally, I need to connect Asterisk to a SIP service. We have an AI that speaks and give response to your recorded message. So the idea is to connect this AI to the Asterisk that is connected to the SIP so it can speak with people on the phone. Ideal Skills: - Experience setting up and configuring Asterisk, IVR systems, and call recording -...

    $331 (Avg Bid)
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    14 bids

    As someone seeking a professional to assist in acquiring and setting up a Dinstar PBX system, this project specifically focuses on creating a small office setup - up to 20 users. The primary function required is Call Recording. Skills & Experience: - Proficiency in Dinstar PBX System setup - Technical knowledge on incorporating Call Recording - Experience with small office networks - Excellent problem solving and communication skills Your primary role will involve: - Advising on the best Dinstar PBX system suited for my needs - Performing a hallmark setup of the Dinstar PBX system - Enabling Call Recording - Ensuring seamless functionality for up to 20 users Your task will be deemed successful upon the seamless operation of a Call Recording-enabled Dinstar PBX system setup for a ...

    $304 (Avg Bid)
    $304 Avg Bid
    12 bids

    I am in need of a professional with in-depth expertise in Telynx system configuration to assist with the setup of my existing telephony structure. Key areas of focus include: - Configuring the Telynx system: I require help with the overall setup of the Telynx system, making it functional and efficient for my business. - Voice and messaging feature setup: The setup should incorporate voice and messaging features. However, specifics of these features are not yet defined and suggestions are welcome. Ideal Skills: - Abundant experience in Telynx system setup. - Have a strong understanding of telephony infrastructures. - Knowledge in configuring voice and messaging (SMS/MMS) feature on the Telynx system. - Excellent communication skills to convey information and advise on the best options f...

    $156 (Avg Bid)
    $156 Avg Bid
    11 bids

    I am looking for a skilled Asterisk developer to customize and integrate my existing AI systems into Asterisk. Specific tasks include: - Integrating Asterisk with intelligent speech recognition and natural language processing systems. - Incorporating chatbot functionality for automated customer support. - Implementing AI-powered call routing and prioritization. The ideal candidate should have prior experience in Asterisk customization, AI integration, and development. Knowledge of speech recognition, natural language processing, chatbot technology, and AI-based routing is crucial for this project.

    $79 / hr (Avg Bid)
    $79 / hr Avg Bid
    28 bids

    Seeking a skilled IMS Specialist to enhance our VoIP systems. The project involves system configuration and troubleshooting, with a focus on integrating new functionalities. Ideal candidates will have experience with: - Expertise in VoIP technologies and systems. - Proficient in system configuration tailored to business needs. - Strong analytical skills for effective troubleshooting. - Experience in integrating VoIP functionalities such as call routing, voicemail, and call recording. Your role will be pivotal in ensuring our VoIP systems are configured for optimal performance, integrating key functionalities to enhance our communication capabilities. This includes troubleshooting any issues that arise during the integration process. Your knowledge and experience will contribute significa...

    $47 / hr (Avg Bid)
    $47 / hr Avg Bid
    6 bids

    We are seeking a highly skilled and experienced AWS Lex / IVR (Interactive Voice Response) Expert for a short-term engagement. As an AWS Lex / IVR Expert, you will be responsible for designing, developing, and implementing voice-based applications using Amazon Lex and IVR technologies

    $584 (Avg Bid)
    $584 Avg Bid
    7 bids

    In the search for an experienced developer, I require a web2call application based on Asterisk. This web2call should focus on enabling international call capabilities. Specifically, the created application should run adeptly on Linux platform systems. Additionally, the application needs to support one-on-one call functionality for its users. Hence, any freelancer bidding on this project should preferably have: - Proficiency in Asterisk software - Experience with building web2call applications - Knowledge of Linux platform compatibility issues - A background in creating systems for making international calls Your understanding of one-on-one call functionality support will be highly valued in this project. This project will be a significant contribution to connecting people across the glo...

    $490 (Avg Bid)
    $490 Avg Bid
    7 bids

    I am venturing into setting up a VoIP Service Provider Platform (Teleman) with my own server and domain. This platform will be targeted to provide both international and local call services. Here's what I'm looking for: Key Features Desired: • International and local Call functionality • International phone number support • Call forwarding The ideal freelancer for this project should have experience setting up VoIP platforms (Teleman) with the above-mentioned features before and be knowledgeable in international call support systems.

    $801 (Avg Bid)
    $801 Avg Bid
    22 bids

    I require a specialist to design a comprehensive voice messaging system. The software should enable the sending of pre-recorded messages to phones within England, based on the call minutes of another company. This project necessitates the inclusion of group messaging capabilities, allowing me to send bulk messages effortlessly. Ideal functionalities include: - An easy-to-use system for individuals - Enable users to compose voice messages using IVR prompts. - Implement options for users to review and edit their messages before sending. - Provide IVR prompts for users to customize group settings, such as group names and notification preferences. - Integrate group selection options into the IVR menu for message composition. - Enable users to navigate through their groups using voice commands...

    $1039 (Avg Bid)
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    51 bids

    I'm searching for a proficient SIP/Asterisk engineer who has ample experience in performing the following tasks: - Setting up and configuring an Asterisk server - Ensuring that the server is set up for high security and can support telemarketing or sales calls - Adding a specific function of calling and spoofing numbers, to be used exclusively for telemarketing and sales purposes Ideal skills and experience for the job: - Extensive experience with Asterisk and SIP protocols - Past-experience in setting up IVR systems - Understanding of server security measures - Familiarity with telemarketing systems Please provide a summary of your relevant work experience and your approach to this task in your bid.

    $967 (Avg Bid)
    $967 Avg Bid
    16 bids
    USA Non-VoIP Number for WhatsApp 15 hours left
    VERIFIED

    I need a USA non-VoIP number for personal use on WhatsApp. - Key Features Needed: • Call forwarding • SMS capabilities I anticipate using this number for over three months. The service provider should be in a position to provide long-term support with respect to these features. Ideal freelancers for this job would be those who have experience in setting up and providing such services, specifically with non-VoIP numbers for communication apps like WhatsApp. You should also be familiar with, or able to troubleshoot any potential technical issues that may arise during the span of time I will be using the number.

    $21 (Avg Bid)
    $21 Avg Bid
    4 bids

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