Multi-Tenant Communications Architecture · System Design
Explore the technical blueprint of NextGenSwitch: master operator dashboard, strict tenant isolation across databases and media, low-latency WebSocket AI streaming, and scalable SaaS telecom architecture.
Full Stack Architecture
How NextGenSwitch separates control, media, tenant logic, and external carrier interconnects.
NextGenSwitch is built from the database schema upwards for multi-tenancy. Every tenant's extensions, call recordings, voicemails, CDR records, user credentials, and AI prompts are isolated. Data cannot bleed across tenant boundaries under any circumstance.
Route inbound and outbound calls through your wholesale SIP trunks. Connect multiple carriers for Least Cost Routing (LCR) and automatic failover. No markup on minutes or message segments.
Native media streaming enables responsive conversational AI voice agents. Fork bi-directional audio directly to speech engines and LLMs via low-latency WebSockets without unnecessary relay hops.
Choose the deployment environment that meets your data residency, compliance, and infrastructure budget requirements.
Technical Specifications & Sizing
Tested concurrent call capacities and validated hardware/carrier ecosystems.
| Deployment Tier | Concurrent Channels | Tenant Capacity | Recommended Specs | SBC / Media Node Architecture |
|---|---|---|---|---|
| Pilot / Community Node | Up to 100 | 1 - 10 Tenants | 4 vCPU, 8 GB RAM, 80 GB SSD | Single all-in-one instance (Control + Asterisk) |
| Service Provider Cluster | 500 - 1,000 | 25 - 100 Tenants | 8 vCPU, 32 GB RAM, Dedicated DB | Dual-node media cluster + Ingress Kamailio SBC |
| Carrier / Telco Scale | 2,000+ | 100 - 1,000+ Tenants | Clustered Kubernetes / Bare-Metal | Multi-AZ Kamailio SBCs + N+1 Asterisk worker pool |
Automated Zero-Touch Provisioning (ZTP) and XML configuration templates for top SIP endpoints:
Pre-validated SIP trunk profiles with automated NAT traversal and codec negotiation:
Operational Trust
Enterprise telecom requires strict data isolation, media encryption, and carrier-grade failover topologies.
All SIP signaling is encrypted using TLS 1.3. Real-time media streams utilize SRTP (AES-128/256), protecting confidential voice calls from interception across public internet connections.
Each customer tenant's call detail records (CDRs), audio recordings, users, and routing configs are isolated at the database and object storage layers with tenant-scoped access tokens.
Multi-node Kamailio SBCs with active health probes detect media node degradation in milliseconds. Inbound carrier traffic is immediately rerouted to standby nodes with zero dropped sessions.
Migration Playbook
Migrate existing client tenants from legacy switches or proprietary UCaaS with zero customer downtime.
Audit existing DIDs, extension maps, IVR routing trees, and desk phone MAC addresses across client accounts.
Connect your wholesale SIP trunks (Telnyx, Bandwidth, DIDWW) to your NextGenSwitch SBC with IP-authenticated ACLs.
Batch import extensions and auto-generate HTTPS provisioning URLs for client desk phones (Yealink, Fanvil, Grandstream).
Switch carrier DID routing to your new instance in seconds. Validate test calls before completing clean decommissioning of old hardware.
Architected for enterprise reliability
Speak directly with our platform engineers about concurrent call sizing, carrier interconnection, and deployment topologies.