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!

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    24 仕事が見つかりました。次の価格: USD

    I am in need of a freelancer who has experience in configuring Avaya IP phones, specifically the Avaya ipv500l. The project involves making specific configuration changes to the phones, including VoIP settings, user profile settings, and network settings. I require someone who can handle the end-to-end configuration of the phones, ensuring that all settings are properly adjusted. It is important that the freelancer has knowledge of Avaya IP phone systems and is proficient in configuring them. The project involves configuring more than 10 Avaya IP phones, so the freelancer must be able to handle a larger quantity of devices. Timeliness and attention to detail are crucial. Ideal Skills and Experience: - Experience in configuring Avaya IP phones, particularly the Avaya 9608 model - Knowle...

    $5 - $9 / hr
    $5 - $9 / hr
    0 入札
    Asterisk PBX automation 6 日 left
    認証完了

    Hello, I want to work with WhatsApp, the solution should be a web page application based on sip+webrtc.1: User A make a call to whatsapp 2: Wahatsapp receive a text message 3: User A receive ringback 4: Whatsapp click on link and establish the video call are you able to do something like that Regards

    $200 (Avg Bid)
    $200 平均入札額
    1 入札
    OpenSIPs Admin -- 3 6 日 left
    認証完了

    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

    $26 / hr (Avg Bid)
    $26 / hr 平均入札額
    4 入札

    I am looking for a freelancer who can help me with the configuration of a Dinstar UC2000-VE device for SIP Trunking TO 3CX. Project Requirements: - Configuration of a Dinstar device for SIP Trunking - Integration with an existing PBX system - Configuration of a single Dinstar device Ideal Skills and Experience: - Experience with Dinstar configuration for SIP Trunking - Knowledge of PBX systems and their integration with Dinstar devices - Proficiency in network configuration and troubleshooting If you have the necessary skills and experience, please provide your proposal for this project.

    $10 (Avg Bid)
    $10 平均入札額
    1 入札
    need to deploy kamilio 6 日 left
    認証完了

    I am looking for a freelancer to deploy Kamilio for our existing business. Our current server infrastructure is on-premise. We will need minimal support post-deployment, including bug fixes and small changes. Ideal Skills and Experience: - Experience with Kamilio deployment - Proficiency in server infrastructure management - Strong troubleshooting and bug fixing capabilities

    $249 (Avg Bid)
    $249 平均入札額
    3 入札

    Project Description: I am looking for a freelancer who can assist me with setting up and integrating SIP calls to WhatsApp call conversion. Requirements: - Familiarity with setting up SIP servers on Linux operating systems - Experience in integrating SIP calls with WhatsApp call conversion - Knowledge of the technical aspects involved in setting up and integrating SIP calls - Ability to troubleshoot and resolve any issues that may arise during the setup and integration process Skills and Experience: - Proficient in Linux operating systems - Strong understanding of SIP servers and client software - Experience in integrating SIP calls with messaging platforms such as WhatsApp - Excellent problem-solving and troubleshooting skills If you have the necessary skills and experience in sett...

    $549 (Avg Bid)
    $549 平均入札額
    12 入札

    We use Asterisk PBX along with Free PBX using SIP Protocol. We would like a developer to integrate Whats App calls to our PBX System. Either directly by configuring the Gateway on the PBX itself or as a trunk which is piped from an Android Phone (in this case the phone will be ON and connected on WiFi) to receive and make calls and pipe it as a SIP trunk to our PBX. Requirements: Inbound and Outbound Calling. Caller ID must be passed on incoming calls. Ability to have more than one Whats App number to work simultaneously

    $524 (Avg Bid)
    $524 平均入札額
    21 入札

    I am looking for an expert who can help me with the configuration of my VOS3000 Softswitch. The specific changes I need include adding new routes, changing existing routes, and configuring billing settings. Skills and experience required: - Proficiency in VOS3000 Softswitch configuration - Strong troubleshooting skills - Knowledge of customer account settings I have the login credentials for the VOS3000 Softswitch, so you will have access to the necessary resources. This project is urgent and needs to be completed within 20 minutes. Budget for this is $10 so no need to quote if you want a payment above $10

    $19 (Avg Bid)
    $19 平均入札額
    3 入札

    I am looking for a freelancer who can help me with a project that involves converting SIP voice protocol and RTP audio to WhatsApp voice call. I am open to suggestions and have no specific requirements in mind. I do not have a preference for the programming language, so the freelancer can use either Java or Python, whichever they are more comfortable with. The deadline for this project is flexible, although it would be preferable if it could be completed in a timely manner. Ideal skills and experience for this job include: - Experience with SIP voice protocol and RTP audio - Knowledge of WhatsApp voice call integration - Proficiency in Java or Python programming language

    $564 (Avg Bid)
    $564 平均入札額
    17 入札

    I am looking for a freelancer who can integrate SIP to Whatsapp call functionality for both mobile and desktop platforms. The integration should include basic call functionality without any advanced or customized features. Standard security features, such as encryption, should be implemented for this integration. i need use android as voip gateway. inbound calls via sip protocol into outbound calls via WhatsApp Ideal Skills and Experience: - Experience in integrating SIP to Whatsapp call functionality - Proficiency in mobile and desktop application development - Strong understanding of security protocols and standards

    $499 (Avg Bid)
    $499 平均入札額
    18 入札

    Senior Call Agent (US Based) - Cold calling Preferred Location: US only Type of Calls: Cold calling Become a Key Link in International Presales with Handshakers Hi there, We might have a new challenge for you as a senior call agent. Join an innovative and dynamic team at our client's company, a leader in building cutting-edge digital platforms and robust web/mobile applications. As a key player in the industry, our client has established a strong partnership with MoMA, demonstrating a deep understanding of the intricacies of museums and cultural institutions. This is an exciting opportunity to be part of a company poised for expansion in the USA, contributing to the growth of a business that seamlessly blends technology and art to enhance the museum experience. If you are passio...

    $41 / hr (Avg Bid)
    $41 / hr 平均入札額
    15 入札

    I am looking for a freelancer who can help me with port forwarding on my Genexis GPON Earth - 4222 router. Skills and Experience: - Experience with configuring port forwarding on Genexis GPON Earth - 4222 routers - Strong knowledge of router settings and access - Familiarity with port forwarding for computers - Proficiency in configuring standard ports such as 80 and 443 Project Scope: - The freelancer will assist me in accessing the router settings for port forwarding. - The goal is to configure port forwarding specifically for computers. - The required ports for forwarding are standard ports such as 80 and 443. If you have the necessary skills and experience, please reach out to discuss further details of the project.

    $13 (Avg Bid)
    $13 平均入札額
    8 入札

    **Project Description:** Hello! I'm looking for a knowledgeable individual based in the UK who can assist me in starting a VoIP service provider venture. I need guidance and expertise in setting up the infrastructure and initiating operations within the Asterisk PBX framework. **Key Deliverables:** - Consultation and guidance on establishing a VoIP service provider setup tailored to the UK market. - Configuration and setup guidance specifically within the Asterisk PBX framework. **Submission Requirements:** - Overview of previous experience in setting up VoIP service provider infrastructure or Asterisk PBX systems. - Proposed plan or strategy to assist in initiating the VoIP service provider setup. - Estimated timeline and pricing structure for consultation and support services. ...

    $1362 (Avg Bid)
    $1362 平均入札額
    6 入札

    I am looking for a freelancer who can install Asterisk on my Ubuntu 20.04 LTS server for VoIP services. I have specific requirements for the configuration and customization of the Asterisk installation. Skills and Experience Needed: - Strong knowledge and experience in installing and configuring Asterisk on Ubuntu 20.04 LTS - Expertise in setting up VoIP services with Asterisk - Ability to understand and implement specific requirements for the Asterisk installation If you have experience with Asterisk installations and can meet these requirements, please submit your proposal.

    $14 / hr (Avg Bid)
    $14 / hr 平均入札額
    18 入札

    Project Description: Kamailio and Fusion PBX Integration with Prepaid Billing I am looking for a skilled freelancer who can help me integrate Kamailio and Fusion PBX with Prepaid Billing to enhance the billing functionality of my system. The main goal of this integration is to achieve enhanced billing functionality. Specific features required in the prepaid billing system include: - Customizable rate plans to meet our unique business requirements. The integration process should be: - Fast and efficient to minimize downtime and get the system up and running quickly. Ideal Skills and Experience: - Strong knowledge and experience with Kamailio and Fusion PBX. - Proficiency in integrating systems with prepaid billing functionality. - Understanding of customizable rate plans and their imple...

    $25 / hr (Avg Bid)
    $25 / hr 平均入札額
    9 入札
    FreeSWITCH SIP Proxy configuration 1 日 left
    認証完了

    I have a freshly installed "FreeSWITCH", and I want to configure it with the below example: The "Outbound Traffic" - Accept the SIP traffic from the Local "A" () SIP Server. - Redirect the Signaling to the Local "B" () SIP Server. - If the Signaling response is accepted, the traffic (Signaling and Media) will be redirected to the Local "C" () SIP Server. The "Inbound Traffic" - Accept the SIP traffic from the Local "C" () SIP Server. - Redirect the Signaling to the Local "B" () SIP Server. - If the Signaling response is accepted, the traffic (Signaling and Media) will be redirected to the Local "A" () SIP Server. All the traffic mentioned will be on the local network and should be over 5060/UDP. NO...

    $50 (Avg Bid)
    $50 平均入札額
    5 入札
    Configure Softphone on VOS3000 Switch 20 時間 left
    認証完了

    I am looking for a freelancer who can help me configure Zoiper softphone on my VOS3000 switch. I am currently facing issues with calls and need assistance in resolving this. Additionally, I also require help with other settings on the VOS3000 switch - specifically confirming that customer account is set up properly. Ideal skills and experience for this job include: - Proficiency in configuring Zoiper softphone on VOS3000 switch - Troubleshooting and resolving issues related to softphone calls - Familiarity with VOS3000 switch and its various settings - Strong communication skills to effectively understand and address my requirements. I need this task completed in next 30 minutes. This is 3 minutes task and the maximum I will pay is $10.

    $26 (Avg Bid)
    $26 平均入札額
    3 入札
    Project for Guiliano B 21 時間 left
    認証完了

    Project for Guiliano B Objective: -Setup VOIP Timeline: - Desired completion within 1-2 weeks Expertise required: - FreePBX Additional requirements: - Setup VoIP system for improved communication

    $189 (Avg Bid)
    $189 平均入札額
    17 入札
    Setup call center 20 時間 left
    認証完了

    I am looking for a freelancer to help me set up a call center that will handle both inbound and outbound calls. I am open to suggestions for specific software requirements for the call center. Here are the details of the project: - Type of call center setup: Both inbound and outbound - Software requirements: No specific requirements, open to suggestions - Number of call agents: 1-10 Ideal skills and experience for this job: - Experience in setting up both inbound and outbound call centers - Knowledge of various call center software options and ability to suggest the best fit for our needs - Ability to configure and customize the software to meet our requirements - Strong communication and problem-solving skills to ensure smooth operation of the call center - Ability to train the call ...

    $499 (Avg Bid)
    $499 平均入札額
    46 入札
    VoIP Gateway + Asterisk Setup 19 時間 left
    認証完了

    I am looking for a skilled professional to help me set up a VoIP gateway with Asterisk. Integration with our own server is a must, so experience in this area is required. After the initial setup, I will require occasional troubleshooting support. Ideal skills and experience for this job include: - Strong knowledge of VoIP Gateways and Asterisk - Experience with server integration - Ability to provide occasional troubleshooting support

    $4 / hr (Avg Bid)
    $4 / hr 平均入札額
    8 入札

    I am seeking a freelancer who can provide one-on-one lessons in VOIP, PBX, and Asterisk. As a beginner in this field, I am looking for guidance in setting up a PBX system, configuring Asterisk, and troubleshooting VOIP issues. The ideal freelancer should have advanced knowledge in these topics and be able to provide theory support and practical configuration instructions.

    $13 / hr (Avg Bid)
    $13 / hr 平均入札額
    9 入札

    IP CCTV Installation Service - We are in need of an expert in IP CCTV system installation. - The ideal candidate should have experience in installing IP CCTV systems. - The project involves the installation of 100 IP cameras. - We do not require help with system configuration and training. - The candidate should have a strong understanding of IP CCTV systems and their installation process. - The candidate should also have the necessary tools and equipment to complete the installation efficiently and effectively. - The project requires attention to detail and the ability to work with a large number of cameras. - The candidate should have excellent problem-solving skills and be able to troubleshoot any issues that may arise during the installation process. - The project has a strict deadlin...

    $16 (Avg Bid)
    $16 平均入札額
    3 入札
    Network Manager Asterisk PBX 2 時間 left
    認証完了

    I am looking for a network manager with experience in Asterisk PBX systems to help me set up and maintain my communication infrastructure. Specific features needed: - Call routing and forwarding to ensure efficient call management - Voicemail and greetings for professional and personalized customer interactions - Conference calling for team collaboration and remote meetings Integration with other communication tools: - Integration with other communication tools is required to streamline communication processes and ensure seamless connectivity. Ongoing maintenance and updates: - Assistance with regular maintenance and updates of the Asterisk PBX system is needed to ensure smooth and uninterrupted communication. Ideal skills and experience: - Strong knowledge and experience with Asteris...

    $65 (Avg Bid)
    $65 平均入札額
    9 入札

    I am looking for a skilled professional to assist me with the installation and configuration of both a wired and wireless network. I require help with both the initial setup of a 2 ISP business configured with 4-5 VLANS. The network I need to be installed and configured is of medium size, with 11-50 devices: Vlan1 Ethernet business workstation and voip phone Vlan2 Ethernet residential for tv's, Ps5/xbox and AVR system Vlan3 Ethernet cameras and security system/alarm Vlan4 Iot some outside perimeter cameras/floodlights and smart home appliances. **NAS Raid 6 and meduum scale MFC business printer/fax/ copier that can be shared between Vlan1 and Vlan2. Installation of Firewall device, ubiquiti routers and switches, USG gateway and 2-3 AP's throughout building. Ideal Skil...

    $25 - $50 / hr
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    $25 - $50 / hr
    7 入札

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