• A Strategic Initiative to Advance America's Telecommunications Infrastructure

AT&T + TeleFortress

Private SIP Transport Over AT&T NetBond, Business Fiber, and MPLS

AT&T + TeleFortress

AT&T’s nationwide MPLS and cloud backbone powers enterprise networks across every vertical, from healthcare and finance to public sector and global logistics. TeleFortress leverages AT&T NetBond for Cloud, AT&T Business Fiber, and Private IP circuits to deliver private, SLA-backed SIP trunking, STIR/SHAKEN call authentication, and E911-compliant routing for voice applications requiring trust, speed, and full regulatory adherence.

“When your enterprise voice traffic runs over AT&T, TeleFortress ensures it’s signed, compliant, and secure, end to end.”

TeleFortress

Why AT&T + TeleFortress?

Private SIP Trunking Over AT&T Access

  • SIP delivered over NetBond, MPLS, or Business Fiber
  • Avoids public BGP, reduces packet loss and jitter
  • Integrated DID routing, CLI trust enforcement, and fraud controls

STIR/SHAKEN-Enabled Call Signing

  • All outbound calls signed with Attestation A/B
  • Protects brand reputation, increases answer rates, enforces CLI trust
  • Real-time scoring, traceback logs, and call metadata reporting available

E911 + Compliance Routing

  • Full support for Kari’s Law and RAY BAUM’S Act
  • Dispatchable location data routing for emergency services
  • Location-aware call flow support for multi-tenant deployments

Hybrid Voice Environments

  • Works with Microsoft Teams, Cisco Webex, Zoom Phone, Genesys, and more
  • SIP backbone accessible from AT&T-hosted UC or cloud workloads
  • Excellent for UCaaS/CCaaS providers operating inside AT&T Cloud or colocation

Ideal Use Cases

Enterprises using AT&T NetBond to reach AWS, Azure, Oracle, or IBM

Government agencies requiring voice compliance over AT&T MPLS

Hybrid cloud SIP deployments needing CLI integrity + E911

Healthcare or financial clients on AT&T Business Fiber + UCaaS

Contact centers using AT&T SD-WAN with Microsoft Teams or Webex

Robotic hand with digital shield graphic
TeleFortress

Trusted Voice Infrastructure with TeleFortress

STIR/SHAKEN token holder with CLI attestation + audit trail

TLS/SRTP encrypted SIP trunking over AT&T circuits

Registered in the FCC Robocall Mitigation Database

E911 routing, CNAM branding, fraud detection, and DID provisioning APIs

Additional metros supported via NetBond, MPLS, or Ethernet extensions.

TeleFortress Access via AT&T

TeleFortress SIP edge is accessible from AT&T infrastructure in:

Begin Your AT&T + TeleFortress Voice Integration

Schedule a provisioning consult, review MPLS route maps, or request SIP interop packet