2.2 Circuit Switched Services - AT&T
2.2 Circuit Switched Services - AT&T
2.2 Circuit Switched Services - AT&T
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Contract # GS00T01AHD0002Proposal to add Federal Telecommunications Service – Long Distance (FTS-LD)UNIInterfacePayload DataSignalingAT&TTypeTypeRateTypeCompliance4 Analog Trunk:4-Wire5 Digital Trunk:T1 Channelized4-kHz Bandwidth Trunk -E&M Signaling1.536 Mbps T1 Robbed-BitSignaling (ESF)YesYes6 Digital Trunk:ISDN PRI(T ReferencePoint)Up to 1.536 Mbps ITU-TSS Q.931 Yes7 T3 Channelized 43.008 Mbps T1 Robbed-BitSignalingYes<strong>2.2</strong>.1.1.4.2 Local Access to Network Interface (C.<strong>2.2</strong>.1.1.4.2)AT&T will support/provide the interfaces to connect to POPs as described anddefined as in paragraphs <strong>2.2</strong>.1.1.4.2.1 and <strong>2.2</strong>.1.1.4.<strong>2.2</strong>.<strong>2.2</strong>.1.1.4.2.1 Dedicated Access (C.<strong>2.2</strong>.1.1.4.2.1.a)a. Mandatory1. T1 and Fractional T1 channelized with ESF (Standard: Bellcore Pub: SR-TSV-002275; ANSI T1.102/107/403). The ESF format is essential forupgrading existing facilities to ISDN.2. ISDN-PRI (Standard: ANSI T1.607 and 610) provides end-to-end digitalconnectivity, eliminating the need for separate, dedicated voice and dataaccess lines.Use or disclosure of data contained on this sheet is subject to the restriction on the title page of this proposal.q:\mcghee\vol_1sec2d_r.docI-2-78
Change language