Solutions / Access & Edge

Core Infrastructure

The signalling and switching backbone: SS7, SIGTRAN, CAMEL, MAP, Diameter, SIP-I. The plumbing that international voice, messaging and roaming actually ride on. Operated, not resold.

What we run

The interconnect layer that makes everything else work.

Most ‘core infrastructure’ sold in this industry is third-party switch capacity. We operate our own softswitches, signalling gateways and media gateways. The rate card is ours, the SLA is ours, the debug is ours.

SS7 / SIGTRAN

SS7 / SIGTRAN

Classic SS7 and SIGTRAN variants, ISUP, MAP, CAMEL, SCCP, TCAP, across national variants. The signalling layer that still carries the bulk of international voice.

SIP-I / SIP-T

SIP-I / SIP-T

TDM encapsulated in SIP. ISUP release codes preserved end-to-end across the IP hop. Critical for lawful intercept and call-quality diagnostics.

Diameter

Diameter

LTE signalling, S6a, S6t, S8, Gx, Cx. Roaming, policy control, subscriber data exchange between MME and HSS.

Components

Softswitch, gateways, and the bits between.

A real core network is not one box. It is a stack of session controllers, signalling translators, media transcoders and policy functions, engineered to interoperate with anything.

01

Softswitch / Class-4

Tandem transit between carriers. ISUP call control, B-number analysis, routing, digit manipulation, LCR. Carrier-grade failover and resilience. Hundreds of billions of minutes a year ride switches like these.

02

Signalling gateways

SIGTRAN-to-SS7 conversion, MAP/CAMEL interworking, Diameter routing agents. The translation layer that lets an IP-native core talk to legacy TDM and 2G/3G networks.

03

Media gateways

Transcoding between G.711, G.729, AMR, AMR-WB and Opus. DTMF transport (RFC 2833 or in-band). Echo cancellation. Packet loss concealment. The media layer decides whether the call sounds clean.

04

Session border controllers

Topology hiding, denial-of-service protection, SIP normalisation across vendor dialects. The edge function that prevents the public internet from breaking your softswitch.

Why it matters

Because nothing else works without it.

Wholesale voice, MVNO interconnect, international roaming, A2P messaging, all of it depends on a signalling stack that no one outside the network team ever sees. When the stack breaks, everything stops.

Field note

“We securely route billions of minutes and messages each year, offering outstanding performance and scalability. We connect legacy and next generation infrastructure, enabling profitable, efficient service delivery.” That is how working operators describe the core layer, not as ‘innovation’, but as the thing that has to be up.

We operate it. That is the offer.

What we operate end-to-end

  • Class-4 softswitch under carrier-grade SLA
  • Signalling gateways: SS7, SIGTRAN, Diameter
  • Media gateways with transcoding and DTMF
  • Session border controllers at every interconnect
  • 24/7 NOC with named escalation
  • Change windows and maintenance with audit trail
Next

Need a core infrastructure partner that operates, not resells?

Tell us the signalling mix and the interconnect topology. We will scope the platform and the SLA.