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 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.
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.
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.
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 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-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.
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 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 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.
A proven methodology delivering high-quality VoIP solutions with meticulous attention to detail and client success
We deeply understand your business needs, technical requirements, and communication goals. Our team defines project scope, timeline, and success criteria for your VoIP solution.
We deeply understand your business needs, technical requirements, and communication goals. Our team defines project scope, timeline, and success criteria for your VoIP solution.
Comprehensive testing including unit, integration, security audits, and performance testing. Every component validated for reliability, security, and optimal system performance.
24/7 support, monitoring, and maintenance services. Proactive system monitoring, regular updates, performance optimization, and immediate issue resolution for uninterrupted service.
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.
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.
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.
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.
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.
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.
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.
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.
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%.
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.
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.
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.
Empowering innovation with cutting-edge technologies to drive growth, efficiency, and sustainable digital transformation.






Specialized VoIP solutions built for specific industries. We understand your sector’s compliance needs, scale requirements, and business challenges.
HIPAA-compliant communication infrastructure for hospitals, clinics, telehealth platforms, and medical device companies.
PCI-DSS certified VoIP for banks, insurance, payment processors, and wealth management firms with military-grade security.
Scalable contact center platform with AI-powered routing, predictive dialing, and real-time quality monitoring for high-volume calling.
Unified omnichannel communication platform for seamless customer interaction across phone, chat, SMS, and social channels.
Cloud-native VoIP platform that grows with your business from founding team to distributed global organization without infrastructure concerns.
Carrier-grade infrastructure for VoIP service providers and MVNOs with white-label platform and comprehensive billing integration.
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!
Hear how businesses like yours scaled faster with us.
Looking to develop next-gen communication solutions? Sheerbit specializes in custom VoIP development, WebRTC applications, Asterisk and FreeSWITCH integration, OpenSIPS/Kamailio solutions, SIP trunking, MVNO platforms, and telecom API development.
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"Sheerbit Technologies did a fine job in developing VoIP Softphone App, I will continue to do more work with the Sheerbit Technologies team."