VoIP App Development Services
VoIP app development and VoIP software development now sits at the heart of every reliable digital conversation. As an industry-recognized VoIP development company, we provide comprehensive VoIP Development Services, which encompass both mobile and web-based VoIP App Development Services as well as full VoIP Application Development Services. Improve your teams day-to-day communications through our tailored solutions. Reach out today for a no-obligation quote.
Certified Custom VoIP Development Company
Compliant with GDPR & CCPA
IP Rights & NDA protection
50+
App Developers
1 - 10
Years of Experience
30
Active Clients
135
Completed Projects
8
Countries Served
Trusted by startups and Fortune 500 companies

VoIP App Development
VoIP is becoming a more and more important part of the business world. It allows people to communicate with one another without having to rely on a physical phone line or cell phone service. With VoIP, you can make calls from anywhere in the world as long as you have an internet connection.
We offer VoIP app development services that allow you to create apps for iOS and Android devices that will let users place calls using their smartphones. We also provide support for developers who already have an existing app and want to add VoIP capabilities to it.
Why OneClick for VoIP App Development?
At OneClick, fresh ideas sit side by side with proven stability in the fast-moving world of voice apps. As a go-to partner for VoIP projects, we craft solid, flexible apps that push communication forward and stand up to heavy use. Our team makes sure each build is safe, quick, and tuned to your specific business targets.
Prolific Experience
Superlative Developers
Holistic Approach
Proven Methodologies
Quality Assurance
Client-Centric
After many years in the field, OneClick has delivered forward-looking voice systems to telecom firms, support centers, hospitals, and beyond. Because we know each sector inside out, our custom services fit the rules of the industry today and guard your network against tomorrows change.
Our developers speak SIP, WebRTC, and cloud telephony fluently. Each engineer uses up-to-date tools and frameworks so your app moves smoothly from first sketch to full launch. By following the latest protocols and tech shifts, we give clients inventive solutions they can trust.
OneClick takes a full-stack view, building the backend engines and polishing the frontend look and feel. This all-in-one style means our VoIP apps work the way they should, are easy to use, grow with your needs, and keep performing for years.
We use tried-and-true industry methods, such as Agile sprints and DevOps workflows, to speed up builds while keeping quality high. Our VoIP app development includes constant testing, secure coding, and quick feedback loops so you get a reliable, fast-performing phone solution.
At OneClick, thorough QA is simply expected. Every app is stress-tested for security, scalability, and ease of use. That discipline has made us a go-to partner for VoIP projects in markets around the world.
We also believe in open conversation. Your vision stays at the center of our work from the first chat to the final launch. A dedicated project manager keeps you updated and makes sure your goals are reached on time and within budget.
Technical expertise of OneClick VoIP App Development team
Languages
- Javascript
- Typescript
- HTML5
- CSS3
- PHP
- Python
- Go
- Swift
- Kotlin
- Rust
- Dart
- SQL
Frontend Frameworks/Libraries
- React
- Angular
- Vue
- Svelte
- Next.js
- Nuxt.js
- Astro
CSS Frameworks/Preprocessors
- Bootstrap
- Tailwind CSS
- Bootstrap
- Materialize
- Bulma
- Sass
- Less
Backend Frameworks
- Node.js
- Express.js
- Django
- Flask
- Ruby on Rails
- Laravel
- Spring Boot
- ASP.NET
- FastAPI
- Pyramid
- Hapi.js
UI/UX Design Tools
- Figma
- Adobe XD
- Sketch
- InVision
State Management
- Redux
- MobX
- Context API
- Vuex
- Recoil
- NgRx
Package Managers
- npm
- Yarn
- pnpm
Version Control
- Bitbucket
- Git
- GitHub
- GitLab
API
- REST
- GraphQL
- SOAP
Authentication & Authorization
- OAuth
- JWT
- Passport.js
- Firebase Auth
- Auth0
Database
- MySQL
- MongoDB
- PostgreSQL
- DynamoDB
- Redis
- Elasticsearch
- Neo4j
- MariaDB
- CouchDB
- Oracle
- Firebase
- SQLite
Web Servers
- Apache
- Nginx
- IIS
- Caddy
Web APIs
- SOAP APIs
- WebSockets
- WebRTC
- GraphQL APIs
- RESTful APIs
Testing Tools
- Jest
- Mocha
- Cypress
- Selenium
- Jasmine
- Puppeteer
- Playwright
Build Tools
- Webpack
- Rollup
- Gulp
- Grunt
- Parcel
Task Runners
- npm scripts
- Grunt
- Gulp
Continuous Integration/Deployment
- Jenkins
- Travis CI
- CircleCI
- GitLab CI
- GitHub Actions
- AWS CodePipeline
Containerization/Virtualization
- Docker
- Kubernetes
- Vagrant
Content Management Systems (CMS)
- WordPress
- Drupal
- Joomla
- Ghost
- Contentful
E-commerce Platforms
- Shopify
- WooCommerce
- Magento
- BigCommerce
Cloud Providers
- AWS
- Azure
- Google Cloud Platform
- DigitalOcean
Cloud Storage
- AWS S3
- Google Cloud Storage
- Firebase Storage
CDN
- Cloudflare
- AWS CloudFront
- Azure CDN
SEO Tools
- Google Search Console
- SEMrush
- Moz
- Ahrefs
Analytics Tools
- Google Analytics
- Microsoft Clarity
- Hotjar
- Matomo
Performance Monitoring
- New Relic
- Lighthouse
- Google PageSpeed Insights
- Pingdom
Security
- HTTPS
- Helmet.js
- Content Security Policy (CSP)
- OWASP
- CORS
Container Orchestration
- Docker Swarm
- Kubernetes
Deployment Platforms
- Ansible
- Terraform
- Docker Compose
- Kubernetes, Jenkins
- GitLab CI
Serverless Computing
- AWS Lambda
- Azure Functions
- Google Cloud Functions
Email Services
- Postmark
- SES
- Mailgun
- SendGrid
Payment Gateways
- Braintree
- Authorize.Net
- Square
- Razorpay
- PayPal
- Stripe
Web Assembly
- WebAssembly (WASM)
- Blazor
- AssemblyScript
- Rust
Real-Time Communicatio
- Firebase Realtime Database
- Pusher
- Socket.io
- WebSockets
VoIP App Development Process
Plan
Planning is a continuous process in agile development. The goal of planning is to provide a long term vision, backlog grooming, and creation, sprint and release planning, and sprint review and retrospectives.
Design
Test design ideas and visualize thoughts before implementation. Design decisions are made by team to ensure that the features evolves in alignment with business goals, user needs and feedback.
Develop
Developers choose user stories from the assigned sprint tickets and develop them. The development team is closely aligned with business needs and technical constraints. Development is iterative, adaptive and focused on delivering functional software that provides value to end users in every sprint.
Test
Testing is a continuous process integrated into every sprint, Quality assurance helps the team deliver high quality software in each sprint. This process ensures defects are identified early and reduces the larger scale risk.
Deploy & Review
Code is released to staging or a production environment after being properly tested. The review phase happens at the end of every sprint. It is evaluating the development progress, gathering feedback and adapting plans as needed.
Get Your Free Consultation Today!
Unlock the potential of your app with our expert voip application development services. Contact us now!
Engagement Models
Flexible engagement models for Custom VoIP App Development Services
Explore our 3 key engagement models for collaboration and choose the one best suits your requirement.
Fixed Model
Projects with a well-defined scope
Fixed timelines
Fixed budget
Ideal for small and medium-sized projects
Limited flexibility for amendments
Time and Material Model
Time and expertise utilized on project
Scope flexibility
Adaptability of market feedback
Transparency in cost
Project continuously evolves
Dedicated Team Model
Preferred
Professional team dedicated for client
Hire only needed members for limited time
Scalable and flexible team
Immediate and full control on development
High overhead if not managed well
Onboarding Process
Flexible engagement models for VoIP App Development Services
Leverage our experienced team to work on your esteemed project using Dedicated Model engagement.
What We Assure To Provide
Timely Delivery
Top-Notch Development
Well-Trained Professionals
Best Technology Practices
Share Your Requirements and Skills Needed
OneClick analyzes your requirements and skills needs and maps the right candidates to fulfill your requirements.
Meet and Screen Top Talent
OneClick shares the right candidates profile to clients and gives them a leverage of the selection of candidates as per their Business goals and skillset needs.
Onboard with Confidence
Onboard the team with no hassles the best talent to ensure your project gains momentum as you think.
Scale Your Team
Manage your team, Upsize/Downsize Anytime and they would be guided by one of our Project/Account Managers
Our Work
CASE STUDIES
Explore our most notable achievements and successfully developed projects.
Industries which we served



