• A Strategic Initiative to Advance America's Telecommunications Infrastructure

EarthLink + TeleFortress

Secure, STIR/SHAKEN-Enabled SIP Over Nationwide Business Connectivity

EarthLink + TeleFortress

EarthLink Business provides scalable internet, fiber, and broadband access to thousands of businesses across the U.S., particularly in non-metro markets, rural towns, and suburban clusters. TeleFortress integrates seamlessly with EarthLink’s infrastructure to deliver SIP trunking with CLI attestation, E911-compliant voice routing, and regulatory voice services over even the most cost-sensitive connections.

“EarthLink connects your site. TeleFortress protects your call.”

TeleFortress

Why EarthLink Business + TeleFortress?

SIP Over DIA, Fiber, or Broadband

  • Compatible with EarthLink DIA, business internet, and managed connectivity
  • Provides voice-grade SIP trunking for UCaaS, CPaaS, or hybrid UC stacks
  • Ideal for SMBs, clinics, municipalities, or regional franchises

STIR/SHAKEN Voice Authentication

  • All outbound calls signed with Attestation A or B
  • CLI scoring and trust protection prevent “spam likely” degradation
  • Enables audit logging, traceback, and regulatory alignment

E911 & Dispatchable Location Routing

  • Fully compliant with RAY BAUM’S Act and Kari’s Law
  • DID-to-location routing for fixed and multi-site environments
  • Supports public sector, healthcare, and educational institutions

Affordable, Secure Voice in Any Market

  • Delivers regulatory-grade voice infrastructure over affordable access
  • Excellent for rural failover, telehealth, branch communications, and UCaaS expansion
  • Minimal install requirements with full STIR/SHAKEN and CNAM features

Ideal Use Cases

SMBs or clinics using EarthLink Business Internet + SIP-based VoIP

Healthcare offices in underserved fiber markets

School districts or municipalities needing E911 and CLI trust

Retail or hospitality chains deploying UCaaS over EarthLink DIA

Redundant voice routing or STIR/SHAKEN for EarthLink-connected endpoints

Robotic hand with digital shield graphic
TeleFortress

What TeleFortress Adds to EarthLink

FCC-licensed U.S. voice provider

Full STIR/SHAKEN token authority with CLI reputation scoring

TLS/SRTP SIP trunking encryption

E911 location routing, DID provisioning, CNAM branding

Robocall mitigation, fraud defense, and regulatory compliance

Listed in FCC RMD

From rural towns to suburban campuses, TeleFortress brings CLI-trusted voice to every corner EarthLink reaches.

Nationwide Coverage

TeleFortress SIP services are compatible with EarthLink Business circuits in:

Activate SIP Over EarthLink Business

Schedule a provisioning review, compliance design session, or SIP interop guide