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!

De 31,297 opiniones, los clientes califican nuestro VoIP Developers 4.89 de un total de 5 estrellas.
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    15 trabajados encontrados, precios en USD

    Objective Develop and integrate a SIP telephony client within the Milestone video recording software as a plugin using the Milestone SDK. This SIP client will allow the configuration of connection data with the PBX and enable the functionality to automatically answer calls so that they are recorded by Milestone. Project Scope Development of the SIP Client: Implement a SIP client that can be integrated as a plugin into the Milestone software using the provided SDK. Ensure the compatibility of the SIP client with current and future versions of the Milestone software. SIP Client Configuration: Add a user interface in Milestone to configure the SIP client. Configuration parameters should include: SIP server address. Connection port. Username. Password. Additional options such as preferred a...

    $21 / hr (Avg Bid)
    $21 / hr Oferta promedio
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    I am in urgent need of an experienced audio technician well-versed in configuring studio recording systems. a RØDE RØDECaster Duo Key responsibilities will be: I am expanding my basic broadcasting set feom a computer and a DJ mixiner to include the Rodecaster for live face book podcast. Candidates need to have previous experience in managing studio quality sound systems and should be capable in configuring simple equipment for best audio output. Your experience and expertise will be invaluable in achieving the best sound quality from my equipment.

    $108 (Avg Bid)
    $108 Oferta promedio
    11 ofertas
    VoIP Server 3 días left

    I will need a voip server for my call center, I need it to be created in magnusBilling in a VPSand for my clients to be able to change the caller ID directly from a softphone using a code, I also need my clients to be able to play hold music, Will like to find someone want to work long term for the maintenance of the server

    $176 (Avg Bid)
    $176 Oferta promedio
    17 ofertas

    I am seeking an experienced network engineer who can set up a remote access VPN on my Cisco ASR1001 router. TASKS: 1. The VPN setup should specifically use L2TP/IPSec protocol. 2. The authentication should be password-based. Skills & Experience: - Expert knowledge of L2TP/IPSec VPNs - Proven experience with Cisco ASR1001 router setup - Strong understanding of password-based authentication - Good troubleshooting skills and attention to detail. Please provide examples of similar router/VPN setups you have handled.

    $351 (Avg Bid)
    $351 Oferta promedio
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    I'm currently using a manual dialing system and looking to transition to ViciDial to handle my call volume of 50-500 calls per day. I'm specifically interested in the predictive dialing feature. Ideal skills and experience for this job would include: - Expertise in ViciDial setup and configuration - Solid understanding of call center operations - Experience in optimizing dialing systems for medium call volumes - Mastery in setting up predictive dialing systems Success on this project would mean a smooth transition from my current manual dialing system to an optimized ViciDial system that can effectively manage my daily call volumes, incorporating predictive dialing capabilities for efficiency.

    $131 (Avg Bid)
    $131 Oferta promedio
    6 ofertas

    I'm in search of an experienced Radius Server Developer who can take on a comprehensive project. create a radius server that can communicate with OLT, ROUTERS AND VM on HUAWEI, CISCO, FIBERHOME, VSOLUTION, MIKROTIK, UBIQUIT and others through PPPOE, VLAN, IPOE, HOTSPOT ETC

    $1062 (Avg Bid)
    $1062 Oferta promedio
    8 ofertas

    I'm looking for an experienced computer administrator to help me set up a call center system using Vicidial. Additionally, I require network maintenance services and an OpenVPN setup for 11-50 users. Key Tasks: - Setting up a Vicidial call center system - Providing ongoing network maintenance and computer maintenance - Configuring OpenVPN for 11-50 users business hours 7am-6pm pst los angles time send me resume and sample of your work full or part time job available Ideal Skills and Experience: - Proven experience in setting up Vicidial call center systems - Strong background in network maintenance - Proficient in OpenVPN configuration - Familiarity with supporting 11-50 users - Excellent problem-solving skills and attention to detail Please bid if you have the right skills and ...

    $23 / hr (Avg Bid)
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    23 ofertas

    I need a skilled Kamailio specialist to set up a proxy server that's capable of sending push notifications to Android and iOS softphone apps (We already have the apps). Key Requirements: - Cross-Platform Compatibility: The server needs to support both Android and iOS. - High Volume: The proxy will need to handle a substantial amount of push notifications, so performance and reliability are paramount. Ideal Skills & Experience: - Expertise in Kamailio: Experience working with Kamailio in a similar capacity is essential. - Push Notification Implementation: A strong understanding of push notifications and how to implement them across different platforms. Please provide details of your experience with Kamailio and any other relevant technologies in your proposal.

    $172 (Avg Bid)
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    23 ofertas

    I'm looking for an experienced professional who can help me with setting up and utilizing to enhance my recruitment business. Key Responsibilities: - Set up : I need assistance in creating an effective setup of from scratch. This includes but is not limited to integrating with our existing systems and ensuring all necessary tracking and analytics are implemented. - Lead Generation: Utilize to identify and engage with potential leads in the recruitment sector. Key Objectives: - Increasing Sales Conversions: The primary goal of using is to improve our sales conversion rates. The ideal candidate should be able to strategize and implement initiatives that will lead to increased sales and revenue. Ideal Candidate: - Proven Track Record: I'm looking for someone who has a succ...

    $10 / hr (Avg Bid)
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    2 ofertas
    PBX / VOIP / SBC engineer 19 horas left
    VERIFICADO

    I'm in need of an experienced PBX / VOIP / SBC engineer who can address several issues with our customers phone systems system. The primary goal of this project is to troubleshoot and maintain current systems. Key Responsibilities: - Troubleshoot ongoing call quality issues - Investigate and resolve call drops - Address any connectivity problems Skills Required: - Extensive experience with Asterisk and other PBX systems - In-depth knowledge of VOIP network architecture - Proven track record in troubleshooting and maintenance Please only apply if you have a strong background in VOIP technologies and are confident in your ability to resolve issues.

    $18 / hr (Avg Bid)
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    17 ofertas

    I'm in need of an experienced Genesys engineer who specializes in configuration, reporting, and integration. You will be responsible for: - - Required reporting includes real-time reporting, historical reporting, and the creation of custom reports. Reports and dashboards need to be setup Expertise in Genesys configuration is a must, coupled with strong troubleshooting skills. A thorough understanding of IVR setup and skill-based routing configuration is also necessary. Knowledge of differing reporting techniques would be a plus. In addition you will be expected to show your expertise on the Genesys platform.

    $37 / hr (Avg Bid)
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    23 ofertas
    FlyNumber PBX System Integration 9 horas left
    VERIFICADO

    I am currently using FlyNumber PBX system with Acrobits phone app and it requires further integration. FlyNumber has an integrated PBX dashboard but needs to be reconfigured. The following features should be implemented: - Call Forwarding: This is necessary for smooth operation. - Voicemail Management: Must handle voicemail effectively. - Call Routing: Ensures calls are directed appropriately. - Call Recording: Important for quality assurance. - Custom Greetings and Transfer Music: Two phone numbers specifically need custom greetings, and I want my calls to have transfer music playing. The ideal candidate will have experience in PBX systems specifically FlyNumber. Advanced knowledge of call features as mentioned and previous work on voicemail handling, call routing and call recording is...

    $221 (Avg Bid)
    $221 Oferta promedio
    6 ofertas
    FusionPBX Dial Plan Development 8 horas left
    VERIFICADO

    I am seeking a highly skilled freelancer with intensive experience in FusionPBX and Freeswitch. The main objective of this project is the creation of a precise dial plan for FusionPBX. The developed dial plan should effectively handle active calls - holding them temporarily during paging calls. Key tasks include: * Dial plan must allow higher priority calls to override held calls * Acceptance of priority levels for different callers as input parameters The ideal candidate should possess these skills and experience: * Proven experience in FusionPBX and Freeswitch * Knowledge of implementing dial plans * Understanding of call flows and priority handling. Your task will revolve around ensuring a smooth call flow process during the paging, which detailed understanding of PBX systems an...

    $17 (Avg Bid)
    $17 Oferta promedio
    2 ofertas

    We will give you: 1. Virtual Numbers 2. SIP Trunk server I am in need of an expert who can develop a SIP Trunk server with the capability of enabling live voice stream access. Key Requirements: - SIP Trunk Server: The primary purpose of this project is the development of a SIP Trunk server. It is essential that the chosen freelancer has experience in developing such systems. - Live Voice Stream Access: The server must offer functionality to enable live voice stream access. This feature must be robust, reliable, and seamlessly integrated into the server. - Access Control: I need the live voice streams to be secured with user-based permissions. This ensures that only authorized users can access the streams. Integration: - The primary platform that the SIP Trunk server will integrate with ...

    $18 / hr (Avg Bid)
    $18 / hr Oferta promedio
    8 ofertas

    I'm in need of a skilled professional to configure my Fusion PBX system to implement direct call routing. Key Requirements: - The system is currently cloud-hosted. Prior experience with cloud-hosted PBXs is a plus. - I have between 1-10 phone numbers that need to be set up for direct routing. So the Requirement is : You have to configure Inbound Calls using a Soft Switch and Route them to Outbound to an External Location. I am not familar with Fusion PBX UI, which is causing the Problem only. The ideal candidate for this project will have: - Relevant experience in configuring Fusion PBX systems. - Strong understanding of direct routing in PBX systems. - Prior experience with cloud-hosted PBX systems.

    $103 (Avg Bid)
    $103 Oferta promedio
    3 ofertas

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