Path: utzoo!utgpu!watmath!clyde!att!osu-cis!killer!vector!nobody
From: chip@vector.uucp (Chip Rosenthal)
Newsgroups: comp.dcom.telecom
Subject: Re: Switched 56kbps services
Message-ID: 
Date: 7 Dec 88 01:01:19 GMT
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X-TELECOM-Digest: volume 8, issue 195, message 1

Below is information from AT&T's 3/13/87 FCC tariff for Switched-56:

    56kbps Switched Digital Service is furnished for the switching and
    transmission of simultaneous two-way 56 kbps digital signals.  It
    consists of a common user digital network which is furnished between
    designated AT&T Central Offices.  Service is available for use 24
    hours a day, seven days a week.

    A call can access the 56 kbps Switched Digital Service network at
    designated AT&T Central Offices via an access line.  Access lines are
    provided.

    Access lines are connected at the AT&T Central Office for switching to:

    - another access line for communications between two Customer's
      premises served by the same AT&T Central Office, or

    - the common user digital network for communications between two
      Customer's premises served by different AT&T Central Offices.

    Customer equipment is required to terminate a 56 kbps Switched Digital
    Service call.  Technical Publication - PUB 41458 sets forth the network
    specifications of this equipment.

			    __Mileage_Rates__

    Airline			Initial Period		Each Add'l Period
    Mileage			(30 sec)		(6 sec)

    0				$0.35			$0.06
    1-100			$0.36			$0.06
    101-500			$0.38			$0.07
    501-1000			$0.43			$0.08
    1001-up			$0.47			$0.08

Possible documents of interest:

    AT&T TR41458 - Special Access Connections to the AT&T Communications
        Network for New Service Applications, October 1985, $60.00

    AT&T TR41458A2 - Addendum to TR41458, February 1987, no charge

    Bellcore TR-880-22135-84-01 - Circuit Switched Digital Capability
        Network Interface Specifications, Issue 1, July 1984, $48.50

--
Chip Rosenthal     chip@vector.UUCP    |      Choke me in the shallow water
Dallas Semiconductor   214-450-5337    |         before I get too deep.