GoZupees Deploys Enterprise SIP Infrastructure on AWS — Multi-AZ High Availability with Carrier-Grade Trunk Integration

LONDON — September 2025 — GoZupees (Silicon Biztech Limited) today announced the deployment of its enterprise SIP infrastructure on AWS, featuring a production-grade Kamailio Session Border Controller (SBC) with multi-Availability Zone high availability, automatic failover, carrier-grade trunk integration, and white-label capability. The infrastructure underpins GoZupees’ AI voice agent platform, providing the telephony foundation required for carrier-grade service delivery at scale.

Why SIP Infrastructure Matters for AI Voice

AI voice agents are only as reliable as the telephony infrastructure carrying their calls. Dropped sessions, codec mismatches, and single points of failure undermine customer experience and enterprise confidence. GoZupees has invested in building a carrier-grade SIP layer that meets the same availability and quality standards expected by Tier-1 telcos — because that is exactly who the platform serves.

Architecture Overview

The infrastructure is built on a resilient, multi-layered architecture designed for production telecom workloads:

• Kamailio Session Border Controller — High-performance SBC handling SIP signalling, call routing, and security enforcement at the network edge
• Multi-AZ Deployment — Active instances deployed across multiple AWS Availability Zones, ensuring service continuity in the event of a zone-level failure
• Elastic IP Failover — Automatic IP address reassignment ensures that carrier-facing trunk endpoints remain stable during failover events, with no re-configuration required on the carrier side
• CloudWatch + Lambda Health Monitoring — Continuous health checks with automated remediation. Lambda functions detect SBC degradation and trigger failover sequences without human intervention
• Carrier-Grade Trunk Integration with IPHC — Direct trunk connectivity to UK carriers with IP Header Compression (IPHC) for bandwidth-efficient signalling
• Topology Hiding — Full topology hiding ensures that GoZupees’ internal network architecture is never exposed to external carriers or clients
• Three-Way Call Routing — Support for complex call flows including three-way bridging, enabling AI-to-human-to-customer conference scenarios for supervised transfers

Technical Specifications

The deployment meets enterprise and carrier requirements across every dimension:

• Database Replication — SBC configuration and routing data replicated across zones with sub-second synchronisation, ensuring consistent call handling during failover
• RESTful API — Full programmatic control of SBC configuration, trunk provisioning, and call routing rules via a secure REST API, enabling automated deployment pipelines
• 30-Day Lifecycle Management — Automated certificate rotation, log archival, and configuration auditing on a 30-day cycle, reducing operational overhead and ensuring compliance readiness
• SIP Header Compliance — Strict adherence to RFC 3261 and carrier-specific SIP header requirements, ensuring interoperability with BT Wholesale, TalkTalk Business, and other UK carrier trunk platforms
• White-Label Capability — The infrastructure supports multi-tenant deployment with per-client branding, enabling GoZupees partners to deliver AI voice services under their own identity

“When a Tier-1 telco evaluates an AI voice platform, the first question isn’t about the AI — it’s about the telephony. Can you handle our SIP trunks? Can you guarantee uptime? Can you fail over without dropping calls? We built this infrastructure to answer every one of those questions with a yes. Carrier-grade isn’t a marketing term for us; it’s an engineering requirement.”

— Sandeep Bansal, Co-Founder, GoZupees

Operational Resilience

The combination of multi-AZ deployment, Elastic IP failover, and automated Lambda remediation delivers a resilience profile that exceeds typical cloud-hosted VoIP deployments:

• Zero-downtime failover — Carrier trunks remain connected during AZ-level failures
• Automated health recovery — Degraded instances are replaced without manual intervention
• Full observability — CloudWatch dashboards provide real-time visibility into call volumes, SBC performance, and trunk utilisation

Availability

The enterprise SIP infrastructure is live and serving production traffic for GoZupees AI voice agent deployments. The platform supports both direct carrier trunk integration and Bring Your Own SIP (BYOSIP) configurations for clients with existing telephony providers.

About GoZupees

GoZupees (Silicon Biztech Limited) is a London-based enterprise AI company building agentic AI solutions for telecom, ISP, financial services, and regulated industries. The company’s portfolio spans AI voice agents, network automation (NexOps), service assurance (Vigil), call intelligence, and Bedrock — the first AI-native operating system purpose-built for mid-market ISPs. GoZupees serves Tier-1 UK telcos and enterprise clients, delivering measurable operational cost reductions through AI agents that handle real customer interactions, not demos. For more information, visit gozupees.com.

Media Contact: GoZupees Communications press@gozupees.com