American Telesis’ DS-3 Service is a very high capacity point-to-point digital private line service designed for the full-duplex, isochronous transmission of digital signals at a speed of 44.736Mbps. DS-3 Service provides the equivalent capacity of 28 DS-1 (1.544Mbps) or 672 DS-0 (64Kbps) circuits.


  • High-volume voice and/or data transmission
  • High-speed tie lines or inter-machine trunks
  • High-speed trunking for feature group services
  • High-speed trunking for exchange of traffic with other carriers
  • Video teleconferencing or broadcast


  • Exceptional Inter-exchange Channel (IXC) performance standards:
  • 99.95% Error-Free Seconds (EFS) – measured over 24 consecutive hours*
  • 99.98% Availability – measured over 12 consecutive months*
  • * Varies based on circuit length

Compatible with Bellcore and other industry standards for DS-3 private line service

Service Options
Local loop or bypass facility coordination
DS-3 interconnection
M13 multiplex service-DS-3 to DS-1 (LEC or A/T)
DS-3/DS-1 drop and insert
Diverse routing

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