Fusion-PBX Development | Advanced Multi-Tenant VoIP Solutions

FusionPBX Development Services – Advanced Multi-Tenant VoIP & PBX Solutions

At Rirabh, we deliver custom FusionPBX development and integration services to empower VoIP providers, enterprises, and telecom resellers with reliable, scalable, and feature-rich PBX platforms.

FusionPBX, built on top of FreeSWITCH, is an open-source, web-based PBX system that supports multi-tenant environments, making it ideal for hosted PBX, call centers, and VoIP service providers. We specialize in extending, customizing, and deploying FusionPBX to create end-to-end telephony solutions that are secure, flexible, and aligned with your business workflow.

Industries We Serve

Hosted PBX Providers
VoIP Resellers & ITSPs
Call Centers & BPOs
Enterprises & Corporate Offices
Internet Service Providers (ISPs)
Managed Service Providers (MSPs)

We Provide Advanced Customization Capabilities

We go beyond standard FusionPBX setup — building tailor-made VoIP platforms with powerful automation, analytics, and integrations that give your business a competitive edge.

Our Customization Options Include:

Multi-language IVR systems
Auto-provisioning for IP phones (Yealink, Grandstream, Cisco)
Real-time CDR and analytics dashboards
Custom user roles and permission management
Automated backup and failover solutions
Centralized monitoring and alert systems

Integration Possibilities

We help you connect FusionPBX seamlessly with your existing ecosystem:

VoIP Billing Systems: ASTPP, Magnus Billing, and custom billing platforms
CRM & ERP Tools: Zoho, HubSpot, Odoo, and Salesforce
SMS Gateways: Twilio, Nexmo, and local SMS APIs
Payment Gateways: PayPal, Stripe, Razorpay, Fllutterwave, Paystack, Authorize.net, Skrill, MTN and more
WebRTC Integration: Enable browser-based calling and video communication directly from your web portals

Our Our Fusion-PBX Development Expertise

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.

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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.

Fusion-PBX Development Services for VoIP Providers & Enterprises