Infrastructure

Network topology

Real-time view of our carrier-grade voice network. 6 core POPs, dual-homed SBCs, dedicated RTPEngine media proxies, and direct peering with Tier-1 ILECs and CLECs across the NANP.

Core POPs

Active routes

Avg latency

13ms

Avg utilization

66%

Core POP

SBC

RTPEngine

Upstream Peer

Customer

Signaling

SIP over TLS (port 5061) with SRTP media encryption. Kamailio-based SBC layer handles authentication, rate limiting, topology hiding, and jurisdictional routing via LERG-sourced LCR tables.

Media

RTPEngine media proxies in each POP handle transcoding (G.711/G.729/OPUS), DTMF relay, and SRTP bridging. Kernel-space forwarding achieves sub-millisecond jitter on loopback paths.

Redundancy

Active-active failover across all POPs. Anycast DNS with 10s health checks. SIP OPTIONS-based probing with automatic route bypass on 503/timeout. Zero single points of failure.