FreeSWITCH & Asterisk Development | Custom VoIP Solutions

Build Reliable, Scalable & Feature-Rich VoIP Platforms with Our Expertise

At Rirabh, we specialize in custom FreeSWITCH and Asterisk development services to empower VoIP service providers, enterprises, and telecom operators with tailor-made communication solutions. Whether you’re looking to deploy a Class 4/5 Softswitch, build a Cloud PBX, launch a Call Center Solution, or integrate WebRTC and SIP Trunking, our team brings years of experience in open-source VoIP platforms to deliver scalable, secure, and high-performing systems.

Who Can Benefit?

VoIP Providers & ITSPs (Wholesale & Retail).
Enterprises needing unified communication systems.
Contact Centers & BPOs looking for advanced call management.
Telecom Carriers requiring high-volume switching.
Startups & SaaS Providers launching communication platforms.

Why FreeSWITCH & Asterisk?

Both FreeSWITCH and Asterisk are the most popular open-source telephony engines, widely used across the globe for building next-generation VoIP and UC (Unified Communications) platforms.

Asterisk: Ideal for PBX, IVR, call centers, conferencing, and SMB VoIP solutions.
FreeSWITCH: Highly scalable, designed for high-volume Class 4 switching, video conferencing, CPaaS, and large carrier-grade deployments.

We leverage the strengths of both platforms to build custom VoIP applications that match your business needs.

Benefits of Our FreeSWITCH / Asterisk Development

Tailor-made VoIP solutions to match your business workflows.
Carrier-grade scalability for both wholesale & retail operations.
Lower total cost of ownership (TCO) using open-source platforms.
Future-ready architecture with cloud, WebRTC & SIP innovations.
End-to-end delivery – from design & development to deployment & support.

Our FreeSWITCH / Asterisk Development Services

Whether you need a custom PBX, Class 4/5 Softswitch, CPaaS platform, or WebRTC-enabled collaboration tool, we help you harness the power of FreeSWITCH and Asterisk to achieve your business goals.

Custom PBX Development

Feature-rich IP PBX systems with extensions, voicemail, IVR, call forwarding, and conferencing.
Multi-tenant PBX for VoIP providers.
Web & mobile access for remote teams.

Class 4 & Class 5 Softswitch

Class 4: High-capacity wholesale VoIP routing, LCR, codec transcoding.
Class 5: Retail VoIP, calling cards, residential/business telephony.
Advanced billing & monitoring integration.

SIP Trunking & Interconnect

Carrier-grade SIP trunk integration.
Secure & optimized interconnects with Tier 1 carriers.
Traffic routing, load balancing & failover solutions.

IVR & Call Center Applications

Intelligent IVR (multi-level, speech-enabled).
Real-time monitoring, reporting, and call analytics.
Call recording, whisper, barge-in, and supervisor dashboards.

WebRTC & Video Conferencing

Secure WebRTC integration for browser-based calling.
One-to-one and multi-party video conferencing platforms.
Screen sharing, recording, and collaboration tools.

API & CRM Integrations

Seamless integration with CRMs (Salesforce, Zoho, HubSpot).
REST, SOAP, and custom APIs for third-party apps.
CTI integrations for sales & support teams.

Billing & OSS/BSS Solutions

Prepaid & postpaid billing modules.
Integration with open-source billing (ASTPP, A2Billing, Magnus).
CDR generation, LCR, routing policies, and fraud detection.

Security & High Availability

TLS/SRTP encryption for secure communications.
Redundancy, load balancing, and disaster recovery setup.
Fraud prevention & intrusion detection mechanisms.

Migration & Support Services

Migration from legacy systems to FreeSWITCH / Asterisk.
System upgrades, performance tuning & clustering.
24/7 managed support & monitoring.

Let’s get started - fill out the form, and our team will connect with you soon.

Get Started with Rirabh

Ready to become a Rirabh partner?

Your business is about to grow.

Joining the Rirabh reseller network puts your company on the path to new opportunities and stronger revenue. As a reseller, you can build your brand, serve your clients better, and expand your business with Rirabh advanced communication solutions.

We work for you—providing the technology, tools, and resources you need to succeed. On average, Rirabh resellers see consistent business growth, with top partners achieving impressive annual expansion by leveraging our scalable and future-ready solutions.

FreeSWITCH & Asterisk Development Services for VoIP Providers