Edit Template

Enterprise-Grade VoIP Development Solutions

Build next-generation communication platforms with AI-powered call routing, unified communications, and enterprise security. Sheerbit delivers custom VoIP development services trusted by telecom companies, enterprises, and startups for secure, scalable voice solutions powered by Asterisk, FreeSWITCH, OpenSIPS, and WebRTC.

Whether you need a cloud-based PBX system, custom softphone application, or complete VoIP infrastructure migration, Sheerbit provides end-to-end VoIP development services with proven expertise in building communication platforms that handle thousands of concurrent calls, integrate with CRM systems, and support hybrid workforce connectivity.

Voip Hero Section

What are VoIP Solutions Development?

VoIP Development Services deliver specialized communication solutions that leverage Voice over Internet Protocol (VoIP) to modernize how organizations communicate. These solutions replace expensive legacy telephone infrastructure with cost-effective, internet-based communication systems that deliver voice, video, messaging, and collaboration capabilities.

  • Custom VoIP application development for mobile and web platforms
  • Cloud PBX systems with advanced call routing and IVR capabilities
  • SIP protocol implementation and session border controller (SBC) solutions
  • WebRTC-based browser calling and real-time communication
  • VoIP infrastructure migration from legacy PSTN/analog systems
  • HIPAA-compliant and secure VoIP solutions for healthcare
  • Contact center solutions with AI-driven call analytics
  • Unified Communications platform integration (voice, video, chat, collaboration)


Core Technologies:
 Asterisk, FreeSWITCH, OpenSIPS, Kamailio, and WebRTC enable developers to build enterprise-grade communication systems with HD voice quality, multi-platform support, and seamless CRM integration.

VoIP development is critical for telecom companies, BPOs, contact centers, healthcare providers, financial institutions, and enterprises managing distributed, remote, or hybrid workforces. With traditional PSTN infrastructure being phased out globally, organizations that haven’t yet migrated to VoIP face rising costs and operational inefficiency.

Our Custom VoIP Development Services

Learn about our extensive range of VoIP options for corporate use and our user-friendly softphone services. We can provide you with comprehensive features for efficient communication or user-friendly interfaces to boost productivity.

Our distinctive services are made to accomplish a variety of VoIP needs. This guarantees consistent performance and a smooth integration. You can rely on our experience to maximize the functionality of your communication infrastructure with innovative features and approachable fixes.

WebRTC Development

Build peer-to-peer voice and video calling directly in web applications without requiring downloads. Our WebRTC development services power telehealth platforms, remote support, enterprise video conferencing, and browser-based softphone applications with HD quality and sub-300ms latency.

FreeSWITCH Development

FreeSWITCH powers highly available VoIP infrastructure supporting unlimited concurrent calls, video conferencing, IVR systems, and call recording. Perfect for building carrier-grade systems that handle millions of call sessions with enterprise-class reliability and 99.99% uptime.

Asterisk Development

Asterisk-based solutions deliver small-to-medium business telephony without expensive hardware. Support unlimited extensions, call routing, conference bridging, and CRM integration—all at a fraction of traditional PBX costs. Ideal for startups scaling from 10 to 1000+ users.

Kamailio Development

Scale Kamailio handles massive SIP signaling loads—processing thousands of calls per second with load balancing, routing intelligence, and subscriber management. Essential for VoIP service providers, MVNOs, and enterprises needing carrier-grade call control.

OpenSIPs Development

OpenSIPS delivers intelligent call routing, presence management, and SIP signaling for complex unified communications deployments. Manage thousands of extensions, implement sophisticated routing logic, and scale to millions of users with a lightweight, modular architecture.

A2Billing Development

A2Billing provides comprehensive rating, billing, and customer management for VoIP service providers. Support per-minute billing, prepaid/postpaid models, reseller management, and detailed CDR analytics—built for telecom operators and MVNO platforms.

Our Development Process

A proven methodology delivering high-quality VoIP solutions with meticulous attention to detail and client success

Requirement Analysis

We deeply understand your business needs, technical requirements, and communication goals. Our team defines project scope, timeline, and success criteria for your VoIP solution.

Design & Development

We deeply understand your business needs, technical requirements, and communication goals. Our team defines project scope, timeline, and success criteria for your VoIP solution.

Testing & QA

Comprehensive testing including unit, integration, security audits, and performance testing. Every component validated for reliability, security, and optimal system performance.

Support & Maintenance

24/7 support, monitoring, and maintenance services. Proactive system monitoring, regular updates, performance optimization, and immediate issue resolution for uninterrupted service.

Features of VoIP Development Software Solutions

Tailored Solutions

Reliable communication is the backbone of any VoIP solution. Advanced codecs and noise-cancellation technologies ensure HD voice quality with minimal latency and jitter. Adaptive video streaming dynamically adjusts resolution based on network conditions, providing smooth video calls even in bandwidth-constrained environments. These capabilities guarantee clear, uninterrupted conversations that enhance collaboration and customer interactions.

Multi-Platform Support & Integration

Modern VoIP software offers seamless compatibility across all major operating systems including Windows, macOS, Linux, iOS, and Android. This ubiquity allows users to communicate from desktops, laptops, and mobile devices without any friction. Additionally, the software integrates natively with popular CRM systems, email clients, and collaboration platforms such as Microsoft Teams and Slack, enabling businesses to streamline workflows and centralize communications for improved efficiency.

Call Management Features

Robust call management tools empower businesses to handle high volumes of calls effectively. Features like call forwarding, call recording, automatic call distribution, and interactive voice response (IVR) menus enable personalized routing and efficient handling of customer queries. Conference calling and call queuing capabilities support team collaboration and reduce wait times, enhancing customer satisfaction and operational productivity.

Security & Encryption

VoIP communications require stringent security to protect sensitive voice and data transmissions. The software employs end-to-end encryption protocols such as TLS (Transport Layer Security) and SRTP (Secure Real-time Transport Protocol) to safeguard calls from interception. Strong user authentication, secure provisioning processes, and firewall traversal features prevent unauthorized access and ensure compliance with industry security standards, providing peace of mind to businesses and their customers.

Real-Time Analytics & AI Features

Insightful analytics provide detailed reports on call metrics including volume, duration, and peak usage times. AI-powered tools such as live call transcription and sentiment analysis enable companies to monitor and improve customer service quality proactively. These smart features empower decision-makers with actionable data to optimize workforce allocation, enhance customer interactions, and drive operational improvements.

Customizable & Scalable Solutions

Every business has unique communication needs, and VoIP software offers extensive customization options to match. From designing custom IVR workflows and integrating with specific CRMs to choosing between on-premise or cloud hosting models, the solutions adapt to diverse operational requirements. The scalable architecture ensures the system can grow as the business expands, accommodating increasing user bases and complex communication scenarios without performance degradation.

Why Choose Sheerbit for VoIP Development Services?

Proven Expertise in Modern VoIP Stack

10+ years specializing in enterprise VoIP development. Deep expertise in Asterisk, FreeSWITCH, OpenSIPS, Kamailio, WebRTC, and cloud-native architectures. Proven track record building systems handling 10K+ concurrent calls, deployed across North America, Europe, and Asia-Pacific.

Cloud-First & Future-Proof Solutions

As PSTN infrastructure phases out (deadline 2027 in UK, ongoing in US), our cloud PBX and VoIP solutions position your business for the future. We design systems that scale from 10 users to 100,000+ without hardware upgrades—perfect for growing enterprises and telecom operators.

Specialized in Enterprise Integration

Seamlessly integrate VoIP with your existing ecosystem: Salesforce CTI, HubSpot contact management, Microsoft Teams, Slack, accounting software, and custom business applications. Our VoIP-CRM bridges reduce call handling time by 30-40%.

Security & Compliance First

HIPAA-compliant healthcare VoIP solutions. GDPR-ready European deployments. Encrypted voice channels, secure APIs, and comprehensive audit logging. Protect against SIP toll fraud, DDoS attacks, and eavesdropping with enterprise-grade security architecture.

AI-Powered Features

Leverage AI for call sentiment analysis, real-time transcription with 99.9% accuracy, intelligent call routing, and predictive analytics. Modern call center capabilities—formerly enterprise-only—now accessible to mid-market and growing businesses.

Cost-Effective & Transparent

Eliminate expensive PBX hardware, reduce monthly telecom bills by 40-60%, and scale communication costs with user growth. Fixed, predictable pricing—no surprise overages or hidden fees.

Transform your business communication with Sheerbit.

Technologies We use

Empowering innovation with cutting-edge technologies to drive growth, efficiency, and sustainable digital transformation.

webrtc 3.png
A2billing 2.png
asterisk 2.png
freeswitch 2.png
kamalio 2.png
opensips 1.png

Industries We Serve

Specialized VoIP solutions built for specific industries. We understand your sector’s compliance needs, scale requirements, and business challenges.

Healthcare & Telehealth

HIPAA-compliant communication infrastructure for hospitals, clinics, telehealth platforms, and medical device companies.

  • HIPAA and GDPR compliance built-in
  • EMR/EHR system integration
  • End-to-end encrypted calls
  • Audit-ready logging for compliance

Banking & Finance

PCI-DSS certified VoIP for banks, insurance, payment processors, and wealth management firms with military-grade security.

  • PCI-DSS Level 1 certified
  • SOC 2 Type II compliance
  • Fraud detection and prevention
  • Secure 7-year call archival

Call Centers & BPOs

Scalable contact center platform with AI-powered routing, predictive dialing, and real-time quality monitoring for high-volume calling.

  • Predictive and progressive dialing
  • AI-powered intelligent call routing
  • Real-time agent performance monitoring
  • Reduce handle time by 15-25%

Retail & Commerce

Unified omnichannel communication platform for seamless customer interaction across phone, chat, SMS, and social channels.

  • Unified customer conversation history
  • CRM and POS system integration
  • In-store and remote video support
  • Increase average order value 10-20%

Startups & Scale-Ups

Cloud-native VoIP platform that grows with your business from founding team to distributed global organization without infrastructure concerns.

  • No hardware investment required
  • Global phone numbers in 50+ countries
  • Salesforce and HubSpot CRM integration
  • Pay-per-use flexible pricing

Telecom & MVNO Platforms

Carrier-grade infrastructure for VoIP service providers and MVNOs with white-label platform and comprehensive billing integration.

  • White-label VoIP platform solution
  • A2Billing and rating engine integration
  • Least-cost routing optimization
  • Scale to millions of call minutes
Testimonial

Client Success Stories

Tony Camero

"Sheerbit Technologies did a fine job in developing VoIP Softphone App, I will continue to do more work with the Sheerbit Technologies team."

Stephan Bastian

"Great help and delivered a stable app. Sheerbit Technologies has very helpful team, created an great WebRTC application for us."

Belldial

"Great help and delivered a stable app. Sheerbit Technologies has very helpful team, created an great WebRTC application for us. "

Steve

"It was a pleasure working with Kaushik and the rest of the knowledgeable team at Sheerbit. I would highly recommend them for anyone looking for expertise in the VoIP, cellular or mobile application field."

John Bittner

"Exceptional work! Kaushik has demonstrated a high level of expertise in VoIp App development and Kamailio Proxy server, met all deadlines, and communicated effectively throughout the project. Their attention to detail and commitment to delivering quality results truly impressed me."

Hemant Gosain

"Kaushik remediated the project after a slight miscommunication and delivered on his promises. He is an expert on VOIP and does a through job. Highly recommended professional!"

Edit Template

Frequently Asked Questions

Sheerbit provides end-to-end VoIP development services to build a reliable & secure SIP/VoIP infrastructure for your business; we provide SIP/VoIP server installations, custom VoIP app development, FreeSWITCH and Asterisk configuration, WebRTC Integration, cloud based, and scalable VoIP solutions.

Sheerbit specializes in FreeSWITCH, Asterisk, Kamailio, OpenSIPS, and WebRTC, enabling us to build robust and secure VoIP infrastructures tailored to your business needs.

Yes, Sheerbit can integrate VoIP systems with CRMs like Salesforce, Zoho, or HubSpot, and ERP systems to allow the calls and call details to integrate smoothly with your existing platform.

Absolutely. We can build any customized VoIP applications for mobile and web platforms. For example, audio/video calling, IVR, conferencing, and call detail analytics.

Yes. We follow best practices in security to develop secured VoIP solutions. We can build HIPAA compliant VoIP systems for health care and other companies that require data privacy.

Our VoIP systems are cloud ready and as scalable as your company requires. We build VoIP systems for businesses starting from startups up to large companies with thousands of concurrent calls.

Sheerbit will provide on-going support and maintenance, real-time performance monitoring, and future updates to ensure your VoIP system is running smoothly at all times.

The time to develop VoIP solutions totally depends on the project and complexity. Basic builds can take a few weeks. Our advanced platforms may take several months.

Absolutely. We are capable of upgrading or migrating your existing PBX or legacy telephony system to a modern VoIP infrastructure with little to no downtime.

Contact us for a free consultation. We will take opportunity to understand your needs and offer the best VoIP solution for you!

Our Latest Blog

Our Latest Blog

LiveKit + OpenAI: Building Real-Time AI Conversations (Voice + Video)

LiveKit + OpenAI: Building Real-Time AI Conversations (Voice + Video)

Something fundamental shifted in how humans interact with software the moment AI models learned to speak and listen in real...
Read More
LiveKit vs Twilio vs Agora: Which Real-Time Platform Should You Choose in 2026?

LiveKit vs Twilio vs Agora: Which Real-Time Platform Should You Choose in 2026?

Real-time communication has quietly become the backbone of modern digital products. Whether you are building a telehealth consultation app, launching...
Read More
When Should You Use LiveKit for Your Business Decision-making guide for CTOs

When Should You Use LiveKit for Your Business Decision-making guide for CTOs

Every technology decision a CTO makes carries two kinds of risk: the risk of choosing the wrong tool, and the...
Read More
LiveKit Architecture Deep Dive: SFU, Media Routing, and Scaling

LiveKit Architecture Deep Dive: SFU, Media Routing, and Scaling

Real-time communication has become the invisible backbone of modern software. From telehealth appointments to collaborative coding environments and AI-powered voice...
Read More
Building Enterprise Call Centers with Asterisk

Building Enterprise Call Centers with Asterisk

Every second counts in customer service. A customer waiting on hold, an agent struggling with outdated tools, a call routed...
Read More
Asterisk Integration with CRM: Salesforce, HubSpot, and Zendesk

Asterisk Integration with CRM: Salesforce, HubSpot, and Zendesk

The modern business landscape demands seamless integration between communication platforms and customer relationship management systems. Organizations worldwide are recognizing that...
Read More

Real Clients. Real Results.

Hear how businesses like yours scaled faster with us.

Edit Template