Hire the best Asterisk developers

Check out Asterisk developers with the skills you need for your next job.
Clients rate Asterisk developers
Rating is 4.7 out of 5.
4.7/5
based on 456 client reviews
  • $25 hourly
    BE in Electronics and Telecommunication with 20 years of experience in Firewall, Networks. VOIP, Wireless. Datacenter, Servers etc Security: Cisco ISE, Cisco Firepower, Cisco ASA 5500, Cisco Meraki, PaloAlto, Checkpoint, Sophos, Fortigate, Dell Sonicwall, Juniper, PFSense, Rapid7, Watchguard, Barracuda SEIM: Solarwinds, Wazuh, Splunk Network: - Cisco, HP, Brocade, Juniper, Zylex, Microtik, GPON/EPON, Ubiquiti VoIP: Cisco, Avaya, Asterisk, FreePBX, 3CX, Microsoft Teams, Grandstream Wireless: Cisco, Ubiquiti, Mojo (AirTight), Aruba, Video: Cisco Telepresence MX200/300/SX20, Telepresence Server, Telepresence Conductor Server, Avaya Scopia XT Data Center: VMware vSphere 7.x, Cisco UCS, Microsoft Hyper V, Citrix Xenserver, Oracle Virtual Box Applications: Microsoft SCCM, MS SQL Server, WSUS, Radius Server, Squid Proxy Server, Keypass, Wordpress Cloud: Amazon Web Services (AWS), Google Cloud platform, Microsoft Azure Cloud Storage: NetApp, Western Digital Routing Protocol: OSPF, EIRGP, BGP, RIP. Network Tools: Wireshark, Solarwinds, Netflow, PRTG, Cacti, Scrutinizer, Logzilla, Wazuh Operating System: Windows 2012/2016/2019, CentOS, Ubuntu
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    VoIP Administration
    Cisco CallManager
    Cisco ASA
    Cisco UCS
    Microsoft Active Directory
    Cisco Router
    Sophos Sophos UTM
    Fortinet
    Juniper
    Cisco WLC
    VPN
  • $70 hourly
    I am consistent "Top Rated Plus" VoIP Developer on Upwork with numerous 5 star reviews including excessively positive feedback. 12+ years of experience in Custom VoIP Software Development. I have provided a wide range of IT solutions, including VoIP Development, Websites & Mobile Apps development for international businesses and start-up companies as well as for large enterprises. 🏆 Following are my area of experiences: ✓ VoIP / SIP / RTP ✓ OpenSIPs / Kamailio / OpenSER ✓ FreeSWITCH, FusionPBX, ASTPP, Lua Scripts ✓ Asterisk, FreePBX, A2billing ✓ RTPengine / MediaProxy / RTPproxy ✓ Twilio ✓ Linux & OpenSource Consulting ✓ MariaDB, MySQL, PostgreSQL (Database design & complex SQL query expert) ✓ PHP, Yii/Yii2, Apache, Nginx ✓ Android 🏆 I provide the following solutions: ✓ High scalable Least Cost Routing(LCR) with Fail-Over ✓ Session Border Controller(SBC) ✓ Click to call ✓ Class4 & Class5 Soft Switches ✓ SIP Proxy Server, SIP Load Balance & Fail-Over ✓ SIP Messaging Server, SIP Redirect Server ✓ IVR Application ✓ Fax over IP (FoIP), T38 Supported FAX Server, FAX to Email ✓ Shoutcast Server ✓ WebRTC SIP client ✓ PHP RESTfull API, Web Services for Mobile Application ✓ Web Applications ✓ Mobile Applications. My core competency lies in complete end-to-end IT solutions for VoIP, Web, and Mobile technologies. 👤 Reviews & feedback given by clients for successfully completion of largest projects ⭐⭐⭐⭐⭐ "Malay is an excellent VoIP expert and was able to do any task we could throw at him. Will be using his services again shortly as our go-to VoIP expert." ⭐⭐⭐⭐⭐ "Excellent at meeting deadlines. Outstanding at changing work hours to conform to my requirements. First-rate productivity levels. Extremely good communication and ability to explain and brainstorm in a group environment. Admirable at working with other random developers I brought into the project throughout the years. Malay and his team at Prayantech were able to tackle any task I through at them from Asterisks, FreeSwitch, Python PHP HTML JS Debian RHEL IP Tables working inside of multiple different cloud hosting environments his understanding of VPN and firewall security are excellent. I can’t say enough good things about this group I am certain we will be working together as a team for many years to come." ⭐⭐⭐⭐⭐ "Malay and his team were great to work with. Once we got in a flow, we were able to bring something to life I could not have done without him and his team. He was extremely aware of timelines and making time for our project during our "open hours" and working around the time change. Thank you Malay! Keep up the great work and I look forward to working with you soon!" ⭐⭐⭐⭐⭐ "It was a pleasure working with Malay. Very professional and to the point. they don't waste time and they want to finish your project as much as you want to."
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    MySQL
    OpenSIPS
    FreeSWITCH
    Yii
    PHP
    Kamailio
    Yii2
    API
    VoIP Software
    MariaDB
    Session Initiation Protocol
    Linux System Administration
    Database Administration
    VoIP Administration
    VoIP
  • $30 hourly
    Good Day I'm Daniel Krahenbuhl. Originally from Switzerland and living in Gdańsk Poland for the last couple of years. I can communicate in English, german and french (if needed :-)). I do enjoy working as a freelance software engineer and sometimes project manager (if the project is interesting). It would be awesome to connect with you and hear what cool projects you have in mind. Let's do it and happy days always. My general work experience: I design and write Software over the last 30 years Node.JS backend development Build API’s / Integrate third party API’s Experience in MySQL/MariaDB, MongoDB Voice/Video/Asterisk: I work with Asterisk since its; s beginnings (25 years ago)
Especially if you build large, scalable services. 
| designed some of the largest and most complex Asterisk system globally. During the years i also gained a lot of in-dept knowledge of Twilio, Pipedrive and Hubspot. Third party API Integrations I have a lot experience in integrating and using following API's Hubspot, Pipedrive, Insightly, Sendgrid, MailChimp, and many more Monday.com Over 7 years of expertise in transforming businesses through cutting-edge process optimization and seamless integrations. With 30 years of programming experience and a background in business consulting, I possess a unique set of skills to elevate your organization to new heights. At the core of my services lies Monday.com, a powerful platform that has revolutionized how businesses manage their workflows and projects. As a seasoned Monday.com specialist, I am adept at tailoring this robust tool to suit your specific needs, streamlining your processes, and enhancing collaboration across your entire team.
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    VoIP
    Twilio API
    RESTful API
    Node.js
    API Development
    Pipedrive
    API Integration
    WebRTC
    FreePBX
    HubSpot
    Stripe API
    Nagios Core
    API
    PHP
  • $32 hourly
    I'm a sysadmin/developer with more than 14 years working on IT for customers all around the world. I have been working mostly with Linux systems but I'm a generalist and I have been working with all kinds of environments and technologies. Let's get in touch and see how I can help you today :)
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    Red Hat Administration
    Network Administration
    MySQL
    VoIP Administration
    Linux System Administration
    Computer Network
    Systems Development
    Python
    Bash
  • $45 hourly
    I have over 15 years of experience in the IT industry working with Start-Ups, Corporate Enterprises and Freelancing with Small Businesses. My skills have been developed on an as-needed basis, and includes but not limited to : * Windows / Linux Server Administration, * Scripting(VB, Bash), * Web Application Development(PHP, MYSQL, Python, Postgresql), * Network Administration (Switching & Routing: mostly Cisco, some Juniper experience) Some of the recent projects I have worked on include: * Network Segmentation for a 5 site WAN, migrated from switched layout to a routed segment at each site, using OSPF for optimized routing and growth. * Web Application Development for Government of Anguilla to process and analyze data from Environmental Survey. The main goal was to allow surveys to be submitted and then provide statistics based on answers per question. The solution was completed using PHP / MYSQL backend and a Bootstrap Template for the frontend. * Integration Scripts for Online Casino to poll and send data between their Casino Software provider and their Affiliate System using their APIs. The scripts were written in PHP and exposed some settings and data in a web-based portal. * Asterisk Based PBXs for Call Center for a multinational. We use internal trunks to route calls to the call center in one territory, they can send the call back to local office if needed. * Freeswitch & FusionPBX for multitenant voip hosting. * ESL programming to integrate applications with freeswitch, developing APIs as needed and integrating with the supply chain providers. I used flask heavily for lightweight middlewares * Django api backend using DRF for a payroll and hr management. Our backend handled all of the business logic and payroll calculations as well as AAA.
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    LAMP Stack
    Linux System Administration
    Computer Network
    Network Administration
    Python
    VoIP
  • $85 hourly
    Technology leader whose qualifications include a certification in Helpdesk Management and Operations Management; and detailed knowledge of networking technologies and best practices. Over 24 years of experience in the creation and deployment of solutions protecting networks, systems and information assets for the Education sector as well as for diverse companies and organizations. Proficient in the following Systems/Technologies: Linux Based Systems (Ubuntu, Debian and CentOS); Windows Desktop (all), Asterisk VOIP Systems, Windows Server Operating Systems (2000-2019), Active Directory Administrator, VMWare Esxi 5.5 and 6, HyperV. Google Workspace Admin and Office 365 Admin, Sharepoint Admin. Experience with Blockchain technologies. LANs, WANs, VPNs, Routers, Firewalls, TCP/IP, Aruba WiFi and Switches, Ubiquiti, Sophos In my current role I work as a Sr. Systems Engineer, Incident Manager and IT Consultant for the banking sector. I look forward to discussing your specific technology project with you.
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    Blockchain
    Telecommunications Engineering
    FreePBX
    Microsoft SharePoint Administration
    Data Center Operations
    Mobile QA
    VMware ESX Server
    VMware Administration
    Network Administration
    Linux System Administration
    Windows Administration
    TCP/IP
    Windows Server
    Microsoft Exchange Server
  • $50 hourly
    Hello, I appreciate your message and your expertise in the fields of telecom companies and software development. It's impressive that you're proficient in a wide range of programming languages including Java, Go, C#, PHP, and Python. Your knowledge of SMPP, SS7, SIGTRAN, and VoIP installations, as well as custom development, is certainly valuable. If I come across any projects or inquiries related to these areas, I'll definitely keep you in mind. Thank you for offering your assistance and sharing your skills. Have a great day! Best regards,
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    Debian
    VoIP Software
    Telecommunications Engineering
    Firewall
    FreePBX
    FreeSWITCH
    VoIP
    SMPP
    SMS Gateway
    Linux System Administration
    Golang
    Python
    PHP
    C#
  • $15 hourly
    I am enthusiastic and passionate programmer working on the latest technologies, building valuable softwares, provide solutions.
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    ETL
    Data Migration
    Microsoft Excel
    Data Extraction
    Ecommerce
    NodeJS Framework
    Custom App
    JavaScript
    Data Scraping
    C#
    Microsoft SQL Server
    MySQL
    ASP.NET MVC
    API
  • $95 hourly
    I am a software architect & developer with over 18 years of experience. I specialize in designing, developing and connecting various systems and technologies together, starting from embedded systems, through web, mobile and desktop applications, ending on backend (server-side) software. I'm also system administrator and a Linux-geek. Feel free to contact me if you have any work to do! Especially C++/C/Python/C#/Linux related. You can find much more information on my website. I also encourage you to check my GitHub profile.
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    TCP/IP
    System Automation
    Linux System Administration
    SQL
    HTML5
    C++
    Java
    Python
    C#
    C
  • $20 hourly
    Welcome and thanks for coming here. I am a full-time freelance Web Developer with an extensive portfolio. I specialize in Drupal and custom core PHP development. As you will see in my reviews, I focus to deliver quickly and make my clients fully satisfied. I am expert in Drupal and worked in Drupal from the last 4 years. I have developed more than 900+ custom modules and worked with customization(Custom Back-end, front-end, custom module/theme development/contrib modules, hooks/api's/extending classes) as well. I have worked with the Drupal 8 also and migrated the content from Drupal 7 to Drupal 8. Drupal experience: custom modules, theming, multilingual, ecommerce, bootstrap, debugging. Other technologies: GIT, API, Linux, Grunt, Bitbucket, _Slack. Other Skills - Opencart - Codeigniter - Wordpress - Ajax - Jquery(Created custom library) - Javascript - Other custom CRM Feel free to ask me anything, I'm flexible when it comes to work and working time, open to both hourly and fixed contracts. Price is negotiable for long term contracts!!
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    FreePBX
    Android
    Android App Development
    MySQL Programming
    Keap
    Bug Fix
    AJAX
    jQuery
    CodeIgniter
    API
    JSON
    Database Architecture
    PHP
    Drupal
  • $75 hourly
    Professionally I focus on understanding the solutions I provide from the ground up including the decisions for both functionality and security that went into them. I want to offer the Research and Development experience this has brought me to my future clients.
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    Linux System Administration
    Network Administration
    GIS
    Amazon EC2
    Network Security
    SMTP
    Rackspace Cloud Servers
    Amazon S3
    Python
    MongoDB
    Amazon Web Services
    MySQL
    Django
  • $13 hourly
    Hi There - I have a total of 6 Years of experience in Web Application, Website, and API Development. In the Back End : - working on, Node JS, PHP - Laravel, CII In The Front End : - Working on Vue Js, React JS, Angular Js, and JavaScript framework. Also, I have worked on CMS (WordPress), I do Custom WordPress Development, theme customization, and many more. Working on, API Development, Web Application Development, Website Development, 3rd party API implementation. Custom eCommerce website and application development. Believes in the Quality delivery of projects in the field of web and mobile application development. P.S: Have a look at my portfolio and feel free to contact me.
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    Shopify
    React
    Search Engine Optimization
    Software Development
    Product Development
    Web Development
    WordPress
    API
    Laravel
    WooCommerce
    AngularJS
    PHP
    Website Optimization
    HTML
    Vue.js
  • $25 hourly
    I put resources into innovation to enable our clients to release new potential over their associations. Incepted in 2009, from there to now in these considerable years, we've gone through every obstacle and provided solution with sheer dedication. What makes Moon Technolabs stand out from the crowd is their pool of experts, industry knowledge and a genuine understanding of what to do so as to succeed. - Android Development - iOS Development - Windows app Development - MacOS app Development - Web Development Pillars I work with: - Commitment - Quality with the standard code structure - best customer service after development - Agile Methodology
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    Machine Learning
    VoIP
    Internet of Things
    Smart Contract
    Artificial Intelligence
    Blockchain
    macOS
    AWS Lambda
    .NET Core
    Python
    Angular
    iOS
    JavaScript
    WebRTC
    Android
  • $150 hourly
    A Top-Rated, Expert-Vetted VoIP/Software engineer with over 20 years of experience. My experience ranges from Asterisk/FreePBX phone systems, SMS messaging, Linux operating systems, to network administration. I believe you deserve a more professional, reliable, and personalized business experience, and I bring that mindset to every project. Whether I’m developing top-secret code for Lockheed Martin, or AI telephone agents for Nomo, or creating privacy-first communications for Mecca Hosting, Inc, or designing secure, high availability Asterisk systems for TeleConnx Inc., or handling difficult troubleshooting tasks, I always commit myself to the same standard: creative, client-first solutions and efficient, high-quality work, completed in a fraction of the time. I have a passion for transforming mundane phone interactions into exciting customer experiences, and I lean on decades of experience to create solutions that others would find impossible. In short, I can make your telephone system do pretty much anything, including turning on your coffee maker in the morning. I look forward to working with you!
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    FreePBX
    MySQL
    Kamailio
    Linux System Administration
    Amazon Web Services
    VoIP Administration
    API Development
    C
    VoIP Software
    LAMP Administration
    Session Initiation Protocol
    Linux
    VoIP
    Business with 10-99 Employees
  • $30 hourly
    I am working In VoIP , Android and iOS since last 10+ year. I have provided wide range of Technical solutions in VoIP, WebRTC, Website and Mobile Application development areas to startups , mid level and enterprise companies. I have expertise with VoIP mobile development, Android/iOS application development, Flutter Development, ReactNative Development and Web application developments with specialty in developing Asterisk, FreeSWITCH, OpenSIPs, Kamailio, OpenSER, VoIP/SIP, ASTPP, WebRTS and Mobile VoIP based solutions. I have worked on 25+ Linphone, PJSip and WebRTC Based Mobile VoIP Diallers with 100% Client satisfaction. I can also provide customized Class-4 and Class-5 Softswitch for your VoIP business. Please refer below services I can provide. - Linphone Mobile VoIP Dialler development - PJSIP Mobile VoIP Dialler development - Asterisk Server Installation, development , customization and maintenance. - FreeSwitch Server Installation, development , customization and maintenance. - Kamailio and OpenSips Server Installation, development , customization and maintenance. - Android Application development - iOS Application development - Web Application Development - RectJS and ReactNative Web and Mobile Application development. - Testing and bug fixing in existing applications. - Consulting for ongoing projects. - Can provide consulting for projects related to Android, iOS, ReactJS, Asterisk , FreeSwitch , Opensips, Kamailio, ASTPP, RTPengine, MediaProxy, RTPproxy, FreePBX and A2Billing. - Expert in developing Flutter WebRTC Applications. - Expert in developing ReactNative WebRTC Applications. ✅ Mobile Softphone development - Linphone, PJSIP, WebRTC, Any Proprietor SIP SDK integration, Agora Integration, LiveKit Integration, Custom WebRTC Development ✅ VoIP - Freeswitch, Asterisk, FreePBX, FusionPBX, Kamailio, Opensips, ASTPP ✅ React - ReactJS, NextJS, ReactNative, Mobex, Axios, MaterialUI, React-Bootstrap, TailWindCss ✅ NodeJS - NodeJS, NestJS, Middleware, Typescript, Javascript, AWS Deployment, CI/CD Deployment ✅ Mobile Application - Flutter, ReactNative, Android Kotlin, Android, Swift, Objective-C, SwiftUI ✅ HTML, JS, CSS, Bootstrap, Vanila Script, Jquery You can message to discuss your requirements in detail.
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    FreeSWITCH
    VoIP Software
    XMPP
    Kamailio
    VoIP
    React Native
    iOS
    Android App Development
    iOS Development
    Mobile App Development
    React
    WebRTC
    Node.js
    Swift
  • $35 hourly
    1) Free PBX Expert (Installation, Development, Configuration, Technical Support). 2) Fusion PBX Expert (Installation, Development, Configuration, Technical Support) 3) Asterisk Expert (Installation, Development, Configuration, Technical Support). 4) Vicidial Expert (Installation, Development, Configuration, Technical Support). 5) Go Auto Dial Expert (Installation, Development, Configuration, Technical Support). 6) Fop2 Expert (Installation, Development, Configuration, Technical Support). 7) VOIP Expert. 8) IVRS (Design, Development, Configuration, Technical Support). 9) Linux, Mysql Database Expert. 10) Lua Expert. 11) PHP, Mysql, Perl expertise. 12) Rabbit MQ, Redis, Ha proxy Expertise. 13) Freeswitch (Development, Support, Installation) 14) AI / Voice Bot Expert using unimrcp. Projects Handel: 1) IPPBX. 2) Contact Center Solution. 3) SoftSwitch. 4) Autodialer/ Voice Broad Casting System/ Call Back System/Calling Card System. 5) IVRS/Voice Mail /Conference Solution. 6) Voice & SMS Broadcasting System. 7) VOIP Billing Solution. 8) PRI / ISDN/ GSM gateway Integration expert. 10) Solution Design Expert. 11) Architecture Expert. 12) Cloud / On-premises PBX/ contact center / Soft switch Deployment expert.
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    Linux System Administration
    MySQL
    VICIDIAL
    PHP
    OpenSIPS
    Session Initiation Protocol
    FreePBX
    VoIP Administration
    FreeSWITCH
  • $40 hourly
    I am Microsft Certified System Engineer and have working experience in Networking / Systems and Cloud IP Phone Systems. *PBXware from Bicom System *Vital PBX *3CX Phone System *Ring Central *Phone System Installations and Configurations (3CX, Avaya IP Manager, Vital PBX, Genesys Cloud, Alcatel, Cisco, Asterisk Server, etc.) * Remote Support For MS Windows, MS Server, Phone systems configurations * Windows Server 2008,2012,2016,2019 Full Support * All Kind Of Software Installation * Bicom PBXware, Multi Tenant, Call Center & Business Editions along with Serverware * Server Backups * Basic Troubleshooting for all OEMs mentioned above * Best Customer Services Guranteed
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    PBX
    Session Initiation Protocol
    Microsoft Windows
    Technical Support
    Grandstream
    VoIP
    Linux
    Phone Communication
    Twilio
    3CX
    VoIP Software
    Microsoft Teams
    VoIP Administration
    CallTools Call Center Software
    Call Center Management
  • $30 hourly
    Greetings to All, I am working as Senior System Administrator and VoIP Engineer for the last 7 years.I am an expert in setting up Class 4-5 Grade voip Softswitch (e,g PortaOne,voipsoft-switch) and also an expert in setting hosted PBX both multi-tenant and stand-alone. My Core skill is to Administer different types of VoIP system based on asterisk ( e.g.Freepbx,Asterisknow,Issabel,Elastix),Freeswitch(e.g.Fusion-PBX),Grandstream UCM and Linux(Centos-7, Ubuntu).I am also a certified expert in Vmware data center virtualization on Vsphere 6.7 . and Red Hat Certified Engineer. In this recent years i have completed so many systems and virtualization-related projects such as I have deployed 2000+ user mail server using zimbra and postfix then implementing data center virtualization and VoIP Platform using Elastix and freepbx on various Financial organizations such as Bank, IT,etc. I have completed my Bachelor in Electronics and Telecommunication also did my Masters in Computer Science.Hence My skills are sufficient to solve any complex and long-term work smoothly and accurately. Building state-of-the-art, easy to use, user-friendly websites and System applications is truly a passion of mine. I actively seek out new technologies, and stay up-to-date on industry trends and advancements. Thanks
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    VoIP Software
    Elastix
    VoIP PBX
    3CX
    VoIP Administration
    Virtualization
    Network Engineering
    FreePBX
    VMware Administration
    Zimbra Administration
    VICIDIAL
    Linux System Administration
    Microsoft Azure
    CentOS
  • $99 hourly
    With more than 20 years of experience as CEO, IT Director ,Manager and developer, I am seeking opportunities to work with you, to make a long lasting strong and reliable business relationship. Leading design, development, and delivery of complex projects and high-performance solutions. I have strong skills in automation, priorities and technical documentation writing and a proven history of bringing order to chaotic environments. 95% record of on-time project delivery with 99% history of staying within budget.
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    Microsoft Visual Studio
    Trixbox
    FreePBX
    Vue.js
    MongoDB
    Laravel
    Java
    SQL
    VICIDIAL
    Unix Shell
    MySQL
    Microsoft VBScript
    Node.js
    Perl
    PHP
  • $30 hourly
    I have more than 13years of experience with different VoIP tools Especially Asterisk, Vicidial, Freeswitch, Kamailio and OpenSips. I got hands on experience of Asterisk, Call center development, Click2Call, Callback, A2billing, Vicidial, AGI custom script writing, IVR development using PHP, Mysql. I have great experience with: - Call Center development - Call Center Hosted solution (Ready to use) - Call Center CC USA, UK and other countries Carriers - Multi-tenant PBX development - WebRTC (Web Phone) -Vicidial(predictive auto dialer) CRM integrations, custom reporting, wallboard, dashboard etc. - Distinctive Dial Plans and IVR Development - VoIP billing solution development - Asterisk Integration with Web Applications and CRMs. - AGI and AMI script writing - FreePBX for small office/home offices
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    VoIP
    FreePBX
    FreeSWITCH
    MySQL
    VICIDIAL
    SMS Gateway
    Kamailio
    VoIP Software
    PHP
    OpenSIPS
    VoIP Administration
  • $29 hourly
    ✔ 10+ years of Experience ✔ PHP / JS / MySQL / Symfony ✔ System administrator and security analyst ✔ MySQL and MSSQL transactions, triggers, data processing, high performance data schema ✔ VoIP, SIP, Asterisk, PBX, Free PBX, AMI, .AGI, ARI, CRM/ERP integrations ✔ OpenCart Expert ✔ Telegram API/bots ✔ Google Ads Expert
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    Telegram API
    Software Architecture & Design
    Performance Optimization
    Ecommerce Website
    Website Optimization
    Database Optimization
    MySQL
    OpenCart
    Data Migration
    Database
    MySQL Programming
    PHP
    FreePBX
    Telegram
  • $40 hourly
    I am a VoIP professional with over 12 years of experience. I am an expert in Asterisk, Freeswitch, SIP Trunking and provide consultations on these to my clients. Throughout my experience I have designed and developed a number of VoIP, Telecom Solutions like IVR Systems, Autodialers, Conferencing Solutions and Voice Mail solutions from scratch. I develop solutions over multiple programming languages like Javascript (NodeJS), PHP, Java using Asterisk (ARI, AMI and AGI) and Freeswitch (ESL). I also provide support for installation, configuration and maintenance of Asterisk, Freeswitch and other VoIP Switches.
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    WebRTC
    FreeSWITCH
    Session Initiation Protocol
    Kamailio
    VoIP Software
    Linux System Administration
    JavaScript
    Node.js
    VoIP Administration
    Twilio API
    PHP
    Web Service
  • $75 hourly
    Full-featured IVR for financial institution. Customers may access customer account balance, change PIN, report lost card, etc. Twilio SIP trunking Google Voice Polyphone Google MySQL database integration. Asterisk developer. Business phone systems. IVRs serving the financial and insurance communities. Telephone payment systems. MySQL database integration.
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    IVR Software
    VoIP PBX
    VoIP
    FreePBX
    VoIP Administration
    SQL
    Java
    PHP
    MySQL
  • $12 hourly
    Looking for projects that require thinking beyond the box. My core competency lies in the design and development of web applications using ASP.NET MVC framework, JavaScript, and database design using MS SQL Server. I have rich experience in Vue Js, AngularJS, and TypeScript. Thus I have sound knowledge of back-end and front-end technologies and frameworks. I've worked with all popular version control systems: TFS/Azure DevOps, SVN, and Git. My technology stack includes: - Experience as a front-end web developer delivering high-quality, scalable, responsive web solutions - mobile, tablet, and desktop - ASP.Net, HTML5, CSS, ASP.Net Core, Javascript, C#, Entity Framework, MSSQL, AngularJs, VueJs, Git, TFS. - Exceptional front-end development skills in, JavaScript frameworks such as AngularJs/React/Vue, HTML5, CSS3, and Typescript - Experience in Nodejs, Express, and MySQL in the backend - Familiarity with modern JavaScript development workflow tools - Experience in CSS frameworks like SASS/SCSS and Less - Experience with front-end build tools, such as Webpack - Experience in unit and e2e testing using Karma, jasmine, mocha, and chaijs - Strong understanding of Coding best practices - OOP, Design patterns, Data structures, etc. - Solid understanding of single-page application (SPA) front-end development - Experience consuming RESTful web services - Experience in cloud services - Azure and AWS. - Git version control Don't hesitate to contact me! I'll be glad to work on your project or solve a single task
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    .NET Framework
    ADO.NET
    Visual Basic
    C#
    SQL
    ASP.NET
  • $45 hourly
    I am professional freelancer having more than 10 years of experience in the VoIP industry. I am having wide knowledge of VoIP systems installation,configuration and troubleshooting. I am specialize in asterisk, vicidial, goautodial, freeswitch,elastix,Fusionpbx, Kazoo and freepbx based open sourece telephony platforms. I can configure the most advance solutions ranging from web integration of pbx to the enterprise level of VoIP systems deployment. I can also experienced in Linux based servers including opensuse,Centos and Red hat servers. I can install VPS and troubleshoot the day to day issues in the OpenVZ virtualization environment. My way of doing work is the best indication of customer satisfaction. I have done lot of projects in VoIP based systems.
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    OpenSIPS
    Linux System Administration
    Kamailio
    Elastix
    FreeSWITCH
    VICIDIAL
    VoIP Administration
    WebRTC
    FreePBX
    Microsoft Teams
  • $35 hourly
    Hi, I'm Kate! I specialize in helping you migrate from other platforms over to the Sangoma FreePBX system, as well as, handling difficult upgrades from very old FreePBX systems to the most up-to-date versions. I can handle rebuilding dial plans, ensuring that the new system is secure, and can port your numbers from your old provider to your new one. I am also available to assist with maintaining your FreePBX system moving forward, such as adding and provisioning new users, to resetting a voicemail password. I look forward to working with you!
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    FreePBX
    VoIP Administration
    Communication Skills
  • $75 hourly
    I have been working with PHP, Node js, MySQL, Mongo db and cloud telephony technologies like Asterisk, PBX, Freeswitch, Kamailio, Twilio and Plivo for the past few years and have great experience with them. I also have experience in Web and mobile Development, expert in Angular js and React js. I am ready to be hired and start working on your projects today.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Database Administration
    Kamailio
    Twilio API
    VoIP
    JavaScript
    FreePBX
    Session Initiation Protocol
    TypeScript
    Node.js
    API
    VoIP Administration
    FreeSWITCH
    VoIP Software
    WebRTC
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