American Telesis' DS-0 Service is a 64Kbps dedicated digital inter-exchange channel service. Using analog voice frequency (VF) local access, DS-0 Service will support the transmission of analog voice and/or data within the frequency range of 300 - 3000 Hz. DS-0 Service with VF access combines the quality and reliability of digital long haul transmission with the versatility of an analog private line.

Applications
Voice tie lines or inter-machine trunks
Analog data or facsimile lines
Off-premises Extensions (OPX)
Automatic Ring Down circuits (ARD)
Foreign Exchange (FX)
Feature Group (FG) lines

Features
End-to-end service coordination and billing
Superior Inter-exchange Channel (IXC) performance standards:
99.95% Error-Free Seconds (EFS) - measured over 24 consecutive hours*
99.85% Availability - measured over 12 consecutive months*
Mean Time to Repair (MTTR) - objective of 4 hours
* Varies based on circuit length
Compatible with Bellcore and other industry standards for DS-0 digital private line service

Service Options
Multi-point and/or Multi-drop bridging
Signaling and conditioning
Echo cancellation
DS-1 access capability

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