Core Network
A 3GPP Release 8–16 core that runs as VMs on VMware ESXi, Proxmox, or KVM. Four segmented networks (admin, communication, signalling, media), Active/Standby on every critical service, IMS for VoLTE in the same envelope, and an optional ETSI-compliant LI module bolted on when the regulator asks.
Cloud-native VM topology, four-network segmentation
CC, SBC, SD, API Gateway, DB, OCS, IMS SIG, RTP, OP, MISC, BSS, and FD each run on their own redundant VM with sized CPU/RAM/storage. Traffic is split across V/A (admin), COM (inter-component), dedicated signalling (SIP/SIG/DIA), and RTP (media with QoS) — VLANs with independent routing policies, stateful firewall at the distributed switch, IDS/IPS on the OP and MISC nodes.
Carrier-grade HA with hard RTO and RPO targets
Every critical service deploys Active/Standby; databases run Master/Slave with synchronous replication; Signalling Directors support multi-home SIGTRAN with automatic failover across SIG and DRA. A secondary geo-redundant site holds DB, SBC, and API Gateway. Recovery objectives: RTO four hours, RPO fifteen minutes for database tiers, with a DR drill every three months.
IMS and VoLTE in the same envelope
P/I/S-CSCF, TAS, MGCF, and IM-MGW per 3GPP TS 23.228, with the full Gm/Mw/ISC/Mg/Mn/Cx/Sh/Rx interface set. AMR-WB/EVS HD voice, sub-second call setup, and dedicated QCI=1 bearers via the Rx→Gx chain (SDP-driven AAR, RAR/RAA to the PGW). Choose S8HR for fastest deployment or LBO once your roaming partners support it.