2.2 Circuit Switched Services - AT&T

Contract # GS00T01AHD0002Proposal to add Federal Telecommunications Service – Long Distance (FTS-LD)InterfacesISDN-PRI at line-rate of 1.544 Mbps and information -payloaddata rate of up to 1.472 Mbps for (23B+D) and 1.536 Mbps for(24B+D) for dedicated access (Standard: ANSI T1.607 and 610)T1 Channelized (with ESF format) at line rate of 1.544 Mbps andinformation-payload data rate of up to 1.536 Mbps (Standard:Bellcore’s BOC Notes on the LEC Networks [SR-TSV-002275]and ANSI T1.102/107/403T3 channelized at line rate of 44.736 Mbps and informationpayload data rate of 43.008 Mbps (Standard: Bellcore PUB GR-499-COREAT&TComplianceYesYesYesTable 2.2.1.1.4.1-2. User to Network Interface for SVS ⎯ AT&T’s WIN willprovide fully compliant SVS.UNIInterfacePayload DataSignalingAT&TTypeTypeRateTypeCompliance1 Analog Line:2-Wire2 Analog Line:4- Wire3 Analog trunk:2-Wire4-kHz Bandwidth Line -Loop Signaling4-kHz Bandwidth Line -Loop Signaling4-kHz Bandwidth Trunk -Loop Signaling(Loop/GroundStart)YesYesYesUse 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-2-77