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 29,505 reviews, clients rate our VoIP Developers 4.87 out of 5 stars.
Hire VoIP Developers

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    16 jobs found, pricing in GBP

    please teach me how to install, configure kamailio, trouble shoot and check log. I have a need for SIP Proxy

    £21 (Avg Bid)
    £21 Avg Bid
    7 bids

    I'm seeking an experienced network engineer to work on my Cisco 2951 STC telephone line VoIP configuration. Key Responsibilities: - You will primarily be responsible for setting up VoIP using the SIP protocol. - Integration of specific SIP trunking features is also needed, in line with our operational requirements. Skills and Experience: - Prior experience in configuring Cisco 2951 STC or similar products is a must. - Extensive knowledge and experience with VoIP technology and SIP protocol. - Familiarity with SIP trunking features would be considered a great advantage. Candidates who can deliver the project promptly and professionally will be highly preferred. This project offers the opportunity to showcase your abilities in a complex, highly technical environment.

    £132 (Avg Bid)
    £132 Avg Bid
    7 bids

    I am seeking a proficient software developer to build a communication software compatible with the Windows operating system. Key specifics for this software are as follows: SIP (Session Initiation Protocol) –The de facto standard for VoIP communication, used for initial authentication and negotiations when making connections. RTP (Real-Time Transport Protocol) – Chatty, used to transmit audio after authentication and negotiations. IAX (Inter-Asterisk Exchange) – Legacy, less chatty, must have trunk to convert from IAX to SIP service provider. DISA (Direct Inward System Access) – This is sort of like VPN’ing to your internal system, so you can dial internal extensions. DID (Direct Inward Dialing) – This is the telephone number assigned by your service pr...

    £404 (Avg Bid)
    £404 Avg Bid
    24 bids

    Looking for Asterisk implementation engineer who is good at configuring inbound and outbound setup.

    £10 / hr (Avg Bid)
    £10 / hr Avg Bid
    7 bids

    As a Part-Time Vicidial Developer, you will be integral to the continuous improvement and maintenance of our Vicidial system, ensuring optimal performance to meet our organization's unique requirements. This role is perfect for a committed developer with a passion for telephony solutions and a solid background in Vicidial development, particularly in GoHighLevel integration. Responsibilities: Customization and Configuration: Tailor, configure, and uphold the Vicidial system to align seamlessly with organizational needs. Collaboration: Work collaboratively with cross-functional teams to comprehend business requirements and implement Vicidial solutions accordingly. Troubleshooting: Identify and resolve issues related to Vicidial system performance or functionality, including integra...

    £115 (Avg Bid)
    £115 Avg Bid
    19 bids

    Edit Description In need of an experienced Freeswitch developer who can immediately tackle two key areas: configuration and deployment, as well as customization and integration. Job tasks include: - Configuration and deployment of Freeswitch - Customization according to our specific needs - Integration of Freeswitch into our existing system We missed out on specifying desired features during configuration and deployment but I welcome any suggestions from potential freelancers regarding high-availability, scalability, and security for my project. Due to the urgency of our needs, we seek freelancers who can start ASAP and have a proven track record working with Freeswitch. Mastery in system integration and customization is necessary. Ability to work quickly without compromising quality is...

    £13 / hr (Avg Bid)
    £13 / hr Avg Bid
    5 bids

    We're seeking for an experienced VoIP software developer to perform various specific tasks on a time-sensitive project. perform a market research about the top three communication mobile apps (like telegram). We would like to know their main features, and information about each one, and what technology the app was developed in. - Develop a custom software solution tailored to our specific needs. Maintenance, debugging of the existing software as well as optimization and improvement of software performance are key. - Expertise in VoIP market research is required. You'll be responsible in gathering intel on market trends and growth, conducting a competitive analysis of VoIP providers, and studying customer preferences and needs. The ideal candidate will have a strong understa...

    £445 (Avg Bid)
    £445 Avg Bid
    13 bids

    I'm seeking an experienced developer to integrate VoIP to WhatsApp on both Android and iOS. The main functionality that I'm interested in is voice calling. Moreover, it's critical to have the ability to call PSTN (Public Switched Telephone Network) to WhatsApp. The ideal freelancer should: - Have previous experience in cross-platform app development, specifically with VoIP integrations. - Familiarity with APIs and how to integrate them into both iOS and Android platforms. - Familiarity with WhatsApp API would be advantageous. - Understanding of the requirements and constraints of the PSTN. - Necessary skills in developing voice calling functionality. This project's success will hinge on your ability to create a seamless experience for users to engage in voice callin...

    £63 (Avg Bid)
    £63 Avg Bid
    7 bids

    I’m in need of an expert in Twilio. I'm looking for someone to revamp my current system to allow for the reception of texts directly to my email in plain text format. Skillful handling of API keys, specifically for Twilio and Sendgrid, is necessary. The system should not incorporate any high-security encryption, standard security measures will suffice. Another key feature of this project is the immediate notification via email for each incoming SMS. Effective implementation of real-time alert technology is crucial. Please only make a bid if you are conversant with the following requirements: - Twilio SMS and Sendgrid API setup - Instant email alert for every incoming SMS - Plain text email formatting Be prepared to demonstrate relevant experience. Let's connec...

    £45 (Avg Bid)
    £45 Avg Bid
    10 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...

    £47 (Avg Bid)
    £47 Avg Bid
    3 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 -...

    £174 (Avg Bid)
    £174 Avg Bid
    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 ...

    £153 (Avg Bid)
    £153 Avg Bid
    11 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...

    £74 (Avg Bid)
    £74 Avg Bid
    10 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.

    £43 / hr (Avg Bid)
    £43 / hr Avg Bid
    30 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...

    £22 / hr (Avg Bid)
    £22 / hr Avg Bid
    8 bids

    NECESITO ACTIVAR ,MI CERTIFICADO SSL IN MI SERVIDOR Y REDIRECCIONAR EL HTTPS

    £21 (Avg Bid)
    £21 Avg Bid
    17 bids

    Recommended Articles Just for You

    If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
    11 MIN READ
    Learn how to find and work with a top-rated Google Chrome Developer for your project today!
    15 MIN READ
    Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.
    15 MIN READ