Hire the best SIP Specialists in India

Check out SIP Specialists in India with the skills you need for your next job.
  • $50 hourly
    **Asterisk Developer & AI-Integrated Telephony Specialist** Expertise in Conversational AI with 10+ years of experience telephony and 3+ years of AI. Call center automation using real-time speech-to-text, NLU, and TTS, Have built systems similar to air.ai | Cold calling - quicksmart.ai With extensive experience in Asterisk, SIP, VOIP, WebRTC, Freepbx, Dinstar, GSM, and a pioneering approach to integrating Asterisk with AI, I am at the forefront of telephony innovation. My hands-on experience with VOIP technologies like Sangoma, Freepbx, and Dinstar TDM to IP, GSM to IP ensures that I can handle any challenge in this domain. **Job Responsibilities:** - Collaborated with the Application Development team as a Training Engineer. - Expertise in VOIP technologies: Sangoma, Freepbx, Dinstar TDM to IP, GSM to IP. - Spearheaded AI integration with Asterisk to revolutionize telephony solutions. - Served as an advisor for software utilization and optimizing the work environment. - Proficient in assembling and installing various operating systems. - Configured outlook, LAN, and WAN setups. **Technical Skills:** **Intune** **Sentinel** - **Networking (MS Windows):** Domain and Workgroup Connectivity, DNS Configuration, Internet settings, Mail Account setup, DFS, DHCP, HDD management, RDP, VPN, Shadow copying, and more. - **Hardware:** Assembly of computers, installation of a wide range of Operating Systems including Windows (95, 98, XP, Vista, 7, 8, Server editions) and Linux. **Education:** - Intermediate from CBSE Board, 2007. - DOEACC “O” Level. **Special Achievements:** - Represented India in the USA for Mathematics Research at Intel Program (ISEF 2006). - Recipient of the National Award from Intel for Mathematics Research (2005). - Honored with the Bal Vagyanic Award for deriving the “nth” root formula (2006-07). - State Award from NCSC for Science Research (2004). - Rajypal Award in Bharat Scout and Guide (2005). Ready to harness the power of AI-integrated telephony? Experience our cutting-edge voicebot demo, powered by GPT, to learn more about us and our services. Call test real demos quicksmart.ai Let's connect and shape the future of communication
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    CallTools Call Center Software
    WebRTC
    Asterisk
    FreePBX
    VoIP Administration
    Session Initiation Protocol
    Telecommunications Engineering
    VoIP Software
    cPanel
    Customer Relationship Management
    VoIP
    Linux
    Network Administration
  • $50 hourly
    Expert Software Developer with 30 years of proven experience. Expert on Telephony, Streaming, MVC and Web Services and Alexa Skills. Expert Loan Origination Expert - Encompass, Calyx Point, Avista. Integration of these with other applications. Also team of expert loan processors available. Expert Kronos Consultant on WorkForce Dimensions, WorkForce Ready and WorkForce Central. Deep knowledge of Kronos API and Setup and Configuration.
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    .NET Core
    Session Initiation Protocol
    Pipedrive
    Kronos Workforce Management
    Automatic Speech Recognition
    MVC Framework
    Encompass
    PCI
    Avaya
    Alexa Skills Kit
    RESTful API
    .NET Framework
    Web Service
    Perl
  • $50 hourly
    I am consistent "Top Rated Plus" VoIP Developer on Upwork with numerous 5 star reviews including excessively positive feedback. 13+ 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
    Asterisk
    MariaDB
    Session Initiation Protocol
    Linux System Administration
    Database Administration
    VoIP Administration
    VoIP
  • $40 hourly
    Seasoned software developer with 11+ years of experience, worked as a senior software engineer, software development team leader, system architect, business analyst, and project manager. Accurate and well-organized, always looking for elegant and efficient solutions. Experienced in: ============ ✅ Web development (mostly in React and Angular with Java as server-side technology) ✅ Mobile software development (mostly in React Native) Technology background: =================== ✅ Programming languages: Java, JavaScript, Android, HTML ✅ Client-side: Angular, ReactJS, React Native, Node JS, HTML5, CSS, Bootstrap and other JS/CSS frameworks ✅ Web Services: RESTful, SOAP ✅ DevOps: Linux, AWS, Docker, TCP/IP based networks ✅ Databases: PostgreSQL, MySQL, Oracle, SQL Server, Firebase, SQLite, MongoDB ✅ Java development: Spring Boot, Spring, Hibernate, Core Java, etc. ✅ Mobile development: Android, iOS ✅ Version Control: Git, SVN ✅ Unit Testing: Junit, DBUnit, TDD Project Management tools: ======================= ✅ JIRA ✅ Trello ✅ Pivotal Tracker Developing a good rapport, and regular communication is important to me. It ensures the project is completed to the specific guidelines required. I pride myself on providing the highest quality of work, and will never complete a project until the client is 100% satisfied.
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    CSS
    JHipster
    Splunk
    Web Service
    Redux
    Hibernate
    Spring Boot
    Web Application
    Session Initiation Protocol
    Spring Framework
    React Native
    Java
    React
    AngularJS
    HTML5
    JavaScript
  • $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
    Asterisk
  • $50 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
    Asterisk
    Linux System Administration
    JavaScript
    Node.js
    VoIP Administration
    Twilio API
    PHP
    Web Service
  • $60 hourly
    Support and development on asterisk, vicidial, goautodial, fusionpbx, freeswitch Linux System Administration ( CentOS, Debian, Ubunut) Database Management (Mysql, PostgreSQL) Network Administration (Router, Switch, Hardware Firewall)
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    VoIP
    Linux System Administration
    VICIDIAL
    PHP
    MySQL
    FreePBX
    Network Administration
    Android
    A2Billing
    iOS
    FreeSWITCH
    Asterisk
    Customer Relationship Management
    Mobile App
    Session Initiation Protocol
  • $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.
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    Database Administration
    Kamailio
    Asterisk
    Twilio API
    VoIP
    JavaScript
    FreePBX
    Session Initiation Protocol
    TypeScript
    Node.js
    API
    VoIP Administration
    FreeSWITCH
    VoIP Software
    WebRTC
  • $40 hourly
    1. Expert in IP solutions (RCS-GSMA) with open source experiences. 2. Having experience in IMS (IP Multimedia Subsystem) solutions. 3. Having 10 years of experience towards kamailio and opensip projects. 4. Expertise in SIP,SDP,RTP,MSRP,HTTP,DIAMETER,SMPP protocols 5. I can develop custom modules in kamailio,opensip projects 6. Moderate in freeswitch, fusion PBX and asterisk 7. Mainly solution architect in VOIP 8. Well experienced with TCP,UDP and SCTP transport stacks. 9. Well experienced with wireshark and Homer utilities
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    Kamailio
    Session Initiation Protocol
    IP Multimedia Subsystem
    OpenSIPS
    VoIP Administration
    VoIP Software
    Rich Media
  • $25 hourly
    Experience in C/C++ SIP, VOIP, VoLTE, OpenStack, I-CUPS. Have the expertise to do the POC for the products and create the final product's end-to-end delivery. I have experience of Product development and Delivery
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    Session Initiation Protocol
    VoIP
    C++
    C
    Python Script
    VoIP Software
    Python
    Application
    Product Development
    Software Development
  • $100 hourly
    I am 34 years old learner with experience of 10+ years in field of IT, managing Unified communications service specifically the Microsoft provided solutions like Skype for business, Teams. Familiar with terms like SIP, Media Relay, Sip Proxy, Session Border Controler (SBC), QOS, High Availability, Disaster Recovery, Entra Id, Azure, Exchange, SharePoint.
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    Microsoft Teams
    Session Description Protocol
    Session Initiation Protocol
    IT Asset Management
    Customer Relationship Management
    Leadership Skills
  • $60 hourly
    Having 12 years’ experience in Asterisk/OpenSips/Kamailio based application development. With over 6 plus years’ experience in WebRTC development along with 4 years’ experience in Windows development. Below are highlights of the projects and applications worked on: 1. Worked on all the Asterisk configuration changes, which even includes PJSIP. 2. Asterisk Event module (Which handles the request from NodeJS server and handles the events like play greeting, play MOH, Take input field, record greeting, making call, etc. it covers all the features and functionalities of asterisk) 3. Projects which deal with SIP WebRTC Client both Audio & Video. 4. JSON VOIP Client (Audio & Video). This was developed to overcome the loading of heavy SIP stack in browser or mobile. as a result we develop a simple JSON framework to make calls, with a server in the middle that converts to SIP and pushes calls to the asterisk server. 5. Applications for Video conferencing on WebRTC, which supports Peer to Peer in browsers, Android & iOS systems. 6. Applications for Video on WebRTC with SFU (Janus GateWay) in browser, Android & iOS systems. 7. Windows and Mac-based Video Conference applications. In short, we developed an application that is similar to Zoom Meetings. 8. Technologies used for applications like OpenSips/Kamailio only for Proxy, Registrar, and Load Balancing. 9. Worked on C# wpf WebRTC video conferencing service. 10. Worked on C# wpf PJSIP softphone application along with 11. Worked on electron.js with PJSIP softphone application. 12. Microsoft Teams SBC (Call To Teams) 13. SIP to Whatsapp gateway with freeswitch and lineageos on ubuntu with multiple Virtual machines
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    Tableau
    Session Initiation Protocol
    FreeSWITCH
    Asterisk
    Desktop Application
    React Native
    C++
    Android
    C
    Microsoft Windows
    Swift
    React
    Flutter
    WebRTC
    C#
  • $25 hourly
    Hi Guest, First of all, thanks for visiting our profile. I am doing freelancing since 2010 and my expertise on complete VoIP solution including Freeswitch, Asterisk, PJSip, Opensips and Kamailio. I just recently launched a company which is not offering only VoIP solution but Zeus in Web Development(PHP, WordPress etc), Mobile App Development(Android & iOS). We are a team of members having extensive knowledge of all the services we are offering. We have successfully completed many projects delivered competent results with 100% accuracy with lifetime free support. To keep in mind 100% availability, Our dedicated manager is always online to make sure our client will face no more difficult to ask any query at any time. Let me mentioned the technologies which are our core strength listed below: - Development of Linphone Mobile VoIP Diallers - Development of PJSIP Mobile VoIP Diallers - Installation, development, customization, and maintenance of Asterisk,FreeSwitch Switch,Kamalio and OpenSIPs Servers - Android app development - iOS app development - Flutter Cross Platform App Development - Electron App Development - Web application development - ReactJS and ReactNative development for web and mobile applications - Testing and bug fixing for existing applications Consulting for ongoing projects Project consulting for Android, iOS, ReactJS, Asterisk, FreeSwitch, OpenSIPs, Kamailio, ASTPP, RTPengine, MediaProxy, RTPproxy, FreePBX, and A2Billing Expertise in developing Flutter WebRTC applications Expertise in developing ReactNative WebRTC applications Our price is very reasonable which allows us to work with us. Please share your requirement today only with us to check our capabilities to take your experience on the next level. To name a few tools & technologies that I have worked on: • High-level languages: C++, Objective C, Java, Python, PHP • IDEs: Xcode, Android Studio, Eclipse • Version Control & CI: SVN, Git, Perforce, Bitbucket, Jenkins • DBMS: MS SQL, MySQL, Oracle, PostgreSQL, MongoDB • Frameworks: Django, Zend, Magento, Django REST • Management tools: VersionOne, Jira, Trac, MS Project, MS Visio, XMind, Bugzilla, Balsamiq • Amazon Web Services (AWS) - EC2, S3, SQS, SNS, RDS, CloudTrail, Cloudfront
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    WebRTC
    iOS
    Android App Development
    AWS OpsWorks
    VoIP Software
    iOS Development
    FreePBX
    AMP Framework
    VoIP
    Session Initiation Protocol
    Asterisk
    VoIP Administration
    FreeSWITCH
    WordPress
    PHP
  • $30 hourly
    I am here with 13+ years of high experience specialized in creating applications from scratch and improvising the existing applications placing my feet parallel to present-era technologies. Innovation and hard work are my forte. I work to craft the best Android, iOS and Web applications for my clients. Web Technologies I am working on: Frontend: NextJS, ReactJS, MUI, AngularJS, VueJS, Typescript, Javascript, Bootstrap, HTML, CSS. Backend: NodeJS, Laravel, PHP. Databases: MySQL, MongoDB, Redis, Firestore Payment Gateways: Stripe, Paypal, Braintree I also have expertise in developing Cutting Edge WebRTC Video Conferencing for Web and Mobile Apps. WebRTC Technologies I have expertise in: - MediaSoup - Jitsi - XMPP - Twilio - Ejabberd - Erlang 3rd party APIs integration I have done includes: - Firebase - Facebook API - Foodics API - KVK (Chamber of Commerce) - Flight tracking API - Google APIs. - Adobe API
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    Session Initiation Protocol
    Erlang
    XMPP
    WebRTC
    Objective-C
    Swift
    Android
    iOS Development
  • $15 hourly
    I am a senior iOS Developer having 14 years of experience in building Enterprise Applications. My experiences range from building iOS application for retail services industry. I like working on projects with a team that cares about creating beautiful and usable interfaces. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. I look forward to hearing from you! Following are the Tech Stacks I have been using. • Objective-C, Swift, SwiftUI, SQL, Python, Ruby • SQLite, CoreData, CouchDB, MongoDB • Web-Service Integration (REST, SOAP), XML Parsing, JSON Parsing, Protocol Buffer • SVN, Git • Mobile Framework Integration: paypal (Money transaction), iDoubs (SIP Framework), Micro Strategy, Adobe Analytics, Object Mapper, Firebase, Mixpanel, Azure Mobile, Alamo fire, Fabric, Rxswift, Combine. • Experience in app-store publishing process. • CI/CD implementation using Fastlane, XCode Bots. • Excellent knowledge of Software Development Life Cycle (Plan, Analyze, Design, Build, Test and Deploy). • Sonar, Checkmarx. • XCUnitTest, XCUITest, KIF, Nimble. • Cocoapod, Carthage, SPM • Shell script. • TDD • Accessibility • Tuist, Bazel
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    Apache Subversion
    XML Web Services
    Unit Testing
    JSON
    Session Initiation Protocol
    Apple Xcode
    GitHub
    iOS Development
    SQLite
    Objective-C
  • $50 hourly
    I'm a senior C, C++ developer with a passion for working on complex high-performance, and low­ latency systems for telecommunications like own Media Server to Media and Signaling servers like Freeswitch, Kamailio, OpenSIPS, JANUS, Kuranto, and JITSI. Furthermore, I started working on AI in the last six years and worked on ChatBots and VoiceBots. - Have a perfect experience on NLP/NLU open source and cloud platforms like Google dialog flow and Microsoft Luis. - Create custom Modules of Freesiwtch and JANUS for Google, Amazon, IBM Speech To Text, and Text to Speech for real-time transcribers. - Create Conversational IVR and Voice Translator with the help of Google And Amazon. - Real-Time text-to-speech and speech-to-text with NLP/NLU. - Real-Time translator using Google. - good experience in Server Side audio processing and sending audio to any channel. - Excellent experience on Kaldi, Rasa(NLP, NLU), and Python Wavenet library to train models. ✅ Technical Skills : - Development: C/C++, Python - Opensource: TensorFlow, Rasa, WebRTC, reSIProcate - Technology: SIP, Audio/Video, NLP, NLU, Kaldi, deep speech(Mozilla). - Tools (Master): Wireshark, SIPp - Having enough experience with VoIP library for iOS, Android & Windows in C, and C++. - Having experience in VoIP clients and server development. ✅ Develop for all the platforms you need. We cover: - Web - iOS and Android phones and tablets Develop web apps that work on mobile browsers, e.g., video chats, audio and video calling, and audio-video SDK. We help to plan your product and develop it so that users love it. Work with companies and startups to create new products and improve existing ones. ✅ Have the right processes you know in advance. Ours: 1 - Sales managers are 1st level, software analysts. They clarify your needs. You get 3 results: what users can do - user stories, recommended technologies, and estimate based on previous projects. 2 - Analysts clarify details and draw wireframes. They are mockups of all the pages with clickable buttons. So you can play with your app before it’s developed and make changes for cheap. Based on wireframes, we calculate project time and price estimation. 3 - Designers draw clickable graphic design prototypes. 4 - A team of developers, test engineers, and a project manager develops the product. 5 - The team installs it on your server and helps with app store submission. We do maintenance - part-time work on minor improvements after launch. Write to discuss and estimate your project. We give user stories and recommend technologies for free after a call. Without a call, we can’t do it well, unfortunately. All the right questions in writing would have taken days and still much missed. Answer the same workday. On weekends we rest, but if you have a chance - respond too. So please write to us now :)
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    React Native
    Session Initiation Protocol
    LLM Prompt Engineering
    LLM Prompt
    Bot Development
    VoIP
    WebRTC
    Kamailio
    OpenSIPS
    FreeSWITCH
    Video Stream
    Swift
    Dialogflow
    Artificial Intelligence
    Node.js
    Kotlin
    C++
  • $6 hourly
    Experience: Spearheaded the development of iOS applications for over 5 years, demonstrating a deep understanding of Swift and UIKit to craft user- centric experiences. Leveraged WebRTC and SIP protocols to integrate real-time communication functionalities into applications, ensuring seamless user interactions. Proficient in REST and Socket Networking for robust data exchange, coupled with expertise in local database management for efficient storage and retrieval. Adept at integrating third-party libraries to enhance app functionalities, implementing concurrency for optimised performance. Skills: Proficiency in Swift and UIKit for creating dynamic and engaging iOS applications. Extensive experience in integrating and utilizing WebRTC and SIP for real-time communication features. Advanced knowledge of REST and Socket Networking, complemented by expertise in local database management. Strong capabilities in third-party library integration, concurrency, app distribution, and version control, ensuring comprehensive application development and deployment.
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    Agile Software Development
    Kanban Methodology
    Git
    Socket.io
    Websockets
    REST API
    Concurrent Computing
    Session Initiation Protocol
    Chat & Messaging Software
    UIKit
    WebRTC
    Swift
    iOS Development
    Mobile App Development
  • $50 hourly
    Asterisk installation and configuration for IB and OB calls, GSM gateway, Telephony card - Sangoma/Digium/Openvox, Server, Linux ,RAID, IAX calls,IVRS setup.Call centers setup,queue management, VoIP and SIP server setup
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    Telephone System
    Session Initiation Protocol
    VoIP Administration
    VoIP Software
    FreePBX
    VoIP
    Asterisk
    Server
    GSM
    CentOS
  • $15 hourly
    Unified Communications and Collaboration, 10 plus years of experience in Collaboration Portfolio. CCIE ITILv4 ACSE
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    Telephone System
    Session Initiation Protocol
    Cisco IOS
    Cisco Certified Internetwork Expert
    Cisco CallManager
  • $50 hourly
    Technical Professional with 19+ years of experience in system Architecture/integration/testing, product support/implementation and setting up proof-of-concepts (POC) of VoIP, IP Telephony, Contact Center, Video Conference solutions Integration and support for multivendor VoIP/UC solutions. Technical Profile: [VoIP/Telecom] SIP, WebRTC, SIPREC, H.323, Codec’s, DTMF, TLS, SRTP, RTP/RTCP, RTCP-XR, SDP, STIR/SHAKEN, NAT, STUN, ICE, ISDN (Q.931), E1/T1, SSL certificates [Tools] SIPp/MAPS/TestRTC for load test, Jenkins, Zabbix, ELK, Docker, Wireshark, Postman, Open VPN, VoIP Monitor, Testrail, Jira, LX Tool [Automation] Selenium, Python, Nightwatch.js, Allure Report [OS / Services] AWS (EC2, Route 53, Global Accelerator, Load Balancer, Security Group, Cloud Watch), VMware ESXi / vCenter, Microsoft/Linux Server OS (DNS, AD, LDAP, VPN, SfB, Exchange), Oracle Virtual Box, MySQL Experience on OEM products. Polycom/Poly: DMA, RMX - 4000/2000/1800/1500, RPRM, RPAD, Cloud Axis/Web Suite, Content Sharing, VVX IP Phones, HDX and Group Series endpoints AudioCodes: Mediant 9000/4000/800 SBC, 1000 Media Gateways, MSBR 800/500 Broadworks (AS, XSP, NS, MS, DMS, Call Center), FreeSWITCH, FusionPBX, Vodia, 3CX SBC: Sonus/Ribbon 7000/5400, EdgeMarc, Adtran, Mizu, Cataleya IP Phones: Mitel, Snom, Cisco, Grandstream, Panasonic DECT, Acrobit iOS/Android Clients FXS/FXO/PRI Gateways: AudioCodes, Media5, Sangoma/Vegastream, Mediatrix
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    VoIP PBX
    Python
    Selenium
    Session Description Protocol
    FreeSWITCH
    VoIP
    Session Initiation Protocol
  • $6 hourly
    A Telecommunications professional with 12 years of experience, Particular expertise in Project Execution, Network Roll Out, Network Operations & Maintenance, Inspection and Quality Control & Vendor Development.
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    Software Testing
    AWS CodeDeploy
    Jira
    YAML
    XML
    JSON
    Python
    Linux
    TCP/IP
    Diameter
    Session Initiation Protocol
    IP Multimedia Subsystem
    DevOps
    Docker
    Kubernetes
  • $15 hourly
    OBJECTIVE Seeking senior roles in the domains of technical design, architecture, cloud technologies, consulting, presales and management. PROFILE SUMMARY * Technical Professional with more than 12 years of experience in the fields of Telecommunications, H.323 / SIP/ VoIP, Operations, planning, Solution Architecture & Design, Unified Communications / UCaaS, Cloud Technology, Consulting. * Expertise in planning, building architecture, design, implementation, configuration and operational support for Telephony and Unified Communications Solutions like Ericsson, Alcatel ISDN / VOIP voice switches, PBX Solutions and Microsoft Unified Communication solutions - Lync,SFB,MS Teams,M365. * Adept in analyzing information system needs, evaluating end-user requirements, custom designing solutions and troubleshooting for information systems management. * Effective communicator;
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    Phone Communication
    Tech & IT
    Technical Support
    Technical Project Management
    Customer Service
    Gatekeeper
    VoIP
    Session Initiation Protocol
    PBX
    Microsoft Lync Server
    Skype For Business
    Telecommunications
    Microsoft Azure
    Microsoft 365 Copilot
    Microsoft Teams
  • $25 hourly
    We are working on Asterisk - VoIP solutions since 15 years onwards, we are having vast knowledge of all modules of Asterisk and dialer stuff, and we are also able to do integration with crms, clusters as well as other PBX systems for sending and receiving calls as well. We are experts install and configuring Asterisk, vicidial, Voice Broadcast, A2billing, PBX, Freepbx, Freeswitch, Twillio, Elastix, Advanced IVR, Web-meetme, Cloud Solution using Asterisk, SoundBox Dialer, GoAuto Dialer, Call Centre solutions, Hylafax Solutions, etc .. We are popular as a VoIP open-source development company due to our expertise in building, scaling up, and maintaining the best open-source VoIP solutions. We have a team of VICIDial experts who specialize in this open-source call center software. We provide the development of custom features with source code, add-ons, etc. to add missing functionalities to this contact center solution. As a Leading VICIDial Development Company, Our VICIDial skin development and VICIDial theme customization services are popular due to the transformation of this software with better and enhanced UI and UX elements. We also provide various other VICIDial services to benefit its users. We can modify the dialer as per our client requirements like functionality, reports & custom GUI. We provide call center dialer software on the client-server with source code so you can modify it anytime in the future for your clients. ViciDial custom development * Complete configuration and customization for call centers * Inbound / Outbound strategies 1) Miss call report we can setup 2) Abandonded report 3) Advanced agent performance report 4) Sale history report 5) Agent payment report 6) Billing based on rates 7) Custom dashboard for admin, managers 8) Carrier reports with its hangup status 9) Recording reports based on users, campaign 10) Inbound/Outbound separate custom reports Agent layout changes as per your requirement Trackdrive integration for posting Third party call transfer on single click CRM integration with posting via api Webform posting via API Data adjustment via API Custom webphone for integration Agent reports on same screen Soundboard GUI modifications and integration Asterisk * Installtion & Configuration * Dial Plan Designing * Advanced AGI scripting * System Integration, from small office to carrier-grade * Custom applications * Auto/mass dialing solutions A2Billing * Billing customization * Callback customization * CDR customization * IVR customization * Softphone Integration * Multi owner solution * Reseller solution * Clustering / Backup / Failover / Monitoring * Security / Hardening Trixbox / FreePBX / Elastix * Complete configuration * Customization Social skills: excellent in team, individual, on-site or remotely, relaxed or under stress. Organizational skills: excellent with analyst duties, alone or in a team, with project manager duties, with self-managed time, or with magnetic badge. Useful and cost-effective phone management system planning & designing & installation Expertises in Digium, Sangoma, Openvox and other type of PRI & PSTN Card installation. Connecting Multiple Asterisk Server & Cloud Solution for asterisk
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    Vtiger Development
    Vtiger
    SuiteCRM
    UX & UI
    GUI Design
    VICIDIAL
    Linux
    VoIP Software
    Asterisk
    A2Billing
    FreeSWITCH
    Session Initiation Protocol
    FreePBX
    Graphic Design
    Web Design
  • $15 hourly
    I am highly competent App Designer and Developer with 4 years of experience with extensive experience in building high quality applications. In my current position, I maintain an exceedingly different type of functional applications. I have a knack for problems solving and work well independently. My experience range from building native application that work well on platform specific to hybrid application that work well with cross platform. I like working on projects that cares about creating interactive and responsive interfaces. Additionally, I have expertise in : 1. Maintaining accurate schedule and meetings objectives of app. 2. Consulting with clients to determine user needs and design solutions. 3. Overseeing debugging, patches, and implement of new features. 4. Programming in multiple languages including Java, XML, JSON, C, HTML5, Web Design. I am self starter and excel at analysis, design, documentation and testing. And I hope to contribute to your app designing and development goals.
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    J2EE
    Data Structures
    Mobile UI Design
    Session Initiation Protocol
    Web Design
    Mobile App Testing
    Android App Development
    Java
    C
    WebRTC
  • $60 hourly
    Total work experience of 16½ years in Industry including design and development of carrier grade cloud and non cloud telecom products. Graduated from reputed college in India (NIT). Handled onsite projects in US and UK and lead many teleco products to production. Experience in high availability, scalability and load balanced solutions. - Expertise in programming in C++, Python, C and Java. - Asterisk PBX provisioning and deployment. - Expertise in SIP Protocol (7 yrs) call processing gained while working on IPTV, various VoIP Security features like Dos, Topology hiding, call conf, call xfer, DDoS, SIP based webPhone. - Expertise in NFV/Cloud solution using openstack/AWS. - Expertise in WebRTC, sip over websockets. - NAT Traversal Techniques – Expert Level-2yrs worked on opensource PJNATH using STUN/TURN/ICE. - Developed SBC, P-CSCF, I-BCF nodes in IMS network. - Streaming Protocol – RTSP (1 yr): while working on IPTV application, live555 streaming app and STB. Knowledge about codecs (ffmpeg library). - worked on SS7 protocol stack for 2 ½ yrs with expertise in MTP-3 and SCCP.
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    OpenStack
    Blockchain Development
    5G
    Python
    Session Initiation Protocol
    Cloud Computing
    VoIP Software
    Asterisk
    C++
    C
    AWS Lambda
    AWS CloudFront
    AWS Application
  • $15 hourly
    A seasoned IT professional with a passion for delivering comprehensive solutions from concept to deployment. My expertise spans end-to-end IT application development, Azure Cloud, Bitrix24 CRM, and providing top-notch production support. With a proven track record of successful project delivery and client satisfaction, I am committed to turning your ideas into reality. Tech Expertise: End-to-End IT Application Development: Proficient in full-stack development, I leverage cutting-edge technologies to create scalable and efficient applications tailored to your business needs. Examples - Java Spring Boot, ASP.Net , Laravel, Node JS with Microservices Architecure. Azure Cloud Expertise: Deploying, and managing applications on the Azure cloud platform. From virtual machines to serverless computing, I ensure optimal performance and scalability. Bitrix24 CRM Specialist: Maximize your business efficiency with my in-depth knowledge of Bitrix24 CRM. I can customize, integrate, and optimize your CRM system to streamline your workflow and enhance customer relationships. Support Excellence: With a focus on customer satisfaction, I provide top-tier support services. From troubleshooting to proactive maintenance, I ensure that your systems run smoothly, minimizing downtime and maximizing productivity AI Expertise: - Gen AI: Harness the power of generative AI to create innovative solutions, automate tasks, and drive business innovation. - Neural Networks: Experienced in designing and implementing neural network models for tasks such as image recognition, natural language processing, and predictive analytics. -Text Extraction: Utilize advanced techniques for extracting valuable insights from unstructured data, enhancing your ability to make data-driven decisions.
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    FreePBX
    VICIDIAL
    VoIP Administration
    Asterisk
    Session Initiation Protocol
    Bitrix24
    Automation Anywhere
    UiPath
    CRM Software
  • $25 hourly
    I'm experienced in working with Asterisk and FreePBX. I've experience with VoIP technologies like Sangoma, FreePBX, Dinstar gateways. - Expertise in VOIP Technologies: Sangoma, FreePBX, Dinstar TDM to IP, GSM to IP
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    VPN
    Linux
    Database Administration
    Network Administration
    Session Initiation Protocol
    GSM
    VoIP
    VoIP Administration
    VoIP Software
    FreePBX
    Asterisk
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