 






     Software
     Product
     Description

     ________________________________________________________________

     PRODUCT NAME:  VAX ISDN, Version 1.1                SPD 31.23.01

     DESCRIPTION

     The VAX ISDN communication software product allows suitably
     configured VMS systems to connect to ISDN networks based on the
     corresponding CCITT recommendations via a Basic Rate Access.
     Connections are established using the circuit-switched access of
     the ISDN networks. Tables 1 and 2 list those public networks on
     which VAX ISDN is supported and tested.

     VAX ISDN is a VMS layered product that provides circuit-switched
     call control functions. This allows data transfers over one
     or two B-channels provided by the ISDN network at a Basic Rate
     Access, using the following protocols:

     o  DECnet-VAX Phase IV:
        VAX ISDN allows using DECnet-VAX "circuits" to remote DECnet
        nodes across the ISDN network.

        Note: A DECnet license is required to communicate with other
        DECnet nodes over such circuits.

     o  VAX P.S.I.:
        VAX ISDN also allows using X.25 network protocol (VAX P.S.I.)
        for communication across the ISDN network.

     o  Specific protocols:
        VAX ISDN also allows using specific network protocols (DDCMP
        and HDLC) for communication across the ISDN network.



                                  DIGITAL               December 1990

                                                          AE-NS24B-TE

 


     VAX ISDN, Version 1.1                               SPD 31.23.01



     VAX ISDN provides the following functions at the VAX node physi-
     cally connected to the ISDN network:

     o  The ability to support three modes of operation at the con-
        troller level:

        -  Simple mode: Calls are set up and cleared whenever ex-
           plicitly requested either by a system operator or an
           application program.

        -  Authorized mode: The only difference between this mode and
           simple mode is that incoming calls that pass the incoming
           setup information filter are accepted only after they have
           been explicitly authorized by an application program.

        -  Time-cutting mode: To establish a circuit-switched con-
           nection to a predefined destination automatically and to
           minimize circuit usage cost by clearing a communication
           automatically when no user or network management data has
           been transferred for a user-specified length of time.

     o  The ability for user-written programs running under VMS to
        control incoming and outgoing calls. The following program-
        ming languages are supported:

        -  VAX C

        -  VAX Pascal

           An ISDN Network Control Program (ISDN$NCP) is provided
           for management of VAX ISDN. This interface allows es-
           tablishing outgoing calls, specifying ISDN addressing
           information and incoming call filters, accessing statis-
           tical information, requesting options or facilities, and
           performing maintenance functions (such as setting the
           operating mode).

           Problem solving is facilitated by the ability to trace and
           analyze data transferred between the ISDN network and the
           various layers of the VAX ISDN software over the D-channel
           of the Basic Rate Access.

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     VAX ISDN, Version 1.1                               SPD 31.23.01



     o  The options and network facilities supported by VAX ISDN vary
        according to the local ISDN network in use. Table 3 lists the
        options that VAX ISDN is capable of supporting.

     Note: A VAX ISDN ACCESS (SPD 31.24.xx) license is required for
     controlling incoming and outgoing calls from remote VMS user
     programs and for managing the VAX ISDN product from a remote
     ISDN Network Control Program.

     INSTALLATION

     Digital recommends that a customer's first purchase of this
     software product include Digital Installation Services. These
     services provide for installation of the software product by an
     experienced Digital Software Specialist.

     Customer Responsibilities

     In some cases, the ISDN network supplier imposes restrictions,
     limitations, or requirements on the proposed Digital network
     configuration, options, and facilities. The customer must under-
     stand and adhere to these requirements for each and every ISDN
     network used.

     Before installation of the software, the customer must:

     o  Previously have installed all requisite software and hard-
        ware, including terminals.

     Digital's Installation Services also require that the customer
     must:

     o  Have an ISDN Basic Rate Access (SO) line already installed.

     o  Make available for a reasonable period of time, as mutually
        agreed by Digital and the customer, all hardware, communi-
        cation facilities, and terminals that are to be used during
        installation.

                                     3

 


     VAX ISDN, Version 1.1                               SPD 31.23.01



     HARDWARE REQUIREMENTS

     VAX, MicroVAX, VAXstation, or VAXserver configuration as speci-
     fied in the System Support Addendum (SSA 31.23.01-x).

     SOFTWARE REQUIREMENTS

     VMS Operating System

     Refer to the System Support Addendum (SSA 31.23.01-x) for avail-
     ability and required versions of prerequisite/
     optional software.

     ORDERING INFORMATION

     Software Licenses: QL-VZ9A*-**
     Software Media: QA-VZ9A*-**
     Software Documentation: QA-VZ9AA-GZ
     Software Product Services: QT-VZ9A*-**

     *  Denotes variant fields. For additional information on avail-
        able licenses, services, and media, refer to the appropriate
        price book.

     SOFTWARE LICENSING

     This software is furnished under the licensing provisions of
     Digital Equipment Corporation's Standard Terms and Conditions.
     For more information about Digital's licensing terms and poli-
     cies, contact your local Digital office.









                                     4

 


     VAX ISDN, Version 1.1                               SPD 31.23.01



     LICENSE MANAGEMENT FACILITY SUPPORT

     This layered product supports the VMS License Management Facil-
     ity.

     License units for this product are allocated on a CPU-capacity
     basis.

     For more information on the License Management Facility, refer
     to the VMS Operating System Software Product Description (SPD
     25.01.xx) or the License Management Facility manual of the VMS
     Operating System documentation set.

     SOFTWARE PRODUCT SERVICES

     A variety of service options are available from Digital. For
     more information, contact your local Digital office.

     Public Networks Supported

     The list below describes public ISDN networks, which are sup-
     ported with VAX ISDN only in the countries shown. Connections to
     public networks outside this list are customer supported only.

     Since the publication of this SPD, other configurations may have
     been tested. Please consult your local Digital office with any
     questions concerning other public ISDN networks that are not
     listed below.

                  Table 1-Public ISDN Networks Supported
     ________________________________________________________________
     Country___Network/switchSupplier______Mnemonic__________________

     France    NUMERIS-      France        NUM
               VN2           Tlcom
     Japan     INS-NET-V2    Nippon T&T    NTT
                             Corp.


                                     5

 


     VAX ISDN, Version 1.1                               SPD 31.23.01


     ________________________________________________________________
     Country___Network/switchSupplier______Mnemonic__________________

     United    ISDN 2        British       BT
     King-                   Telecom
     dom
     United    5ESS-5E4      AT&T[R]       ATT
     States
     West      1TR6          Deutsche      DBP
     Ger-                    Bndespost
     many____________________________________________________________

                    Table 2-Public ISDN Networks Tested

     ________________________________________________________________
     Switzerland        SwissNet1-tested only with 1TR6 Access.

     ________________________________________________________________

     Unless otherwise acknowledged within the product documentation,
     the trademarks under which the services are offered are propri-
     etary to the respective national PTT, the owning or operating
     companies, or equivalent organizations.

     Options and Facility Support

     VAX ISDN support for any given ISDN option or facility depends
     on support for it in the corresponding ISDN network. Generally,
     VAX ISDN is designed to include restrictions on the use of
     options or network facilities and prevents the use of facilities
     not supported by the local ISDN network.

     Therefore, Table 3 shows what VAX ISDN is capable of using,
     rather than what it will do when used on any particular ISDN
     network. The product documentation describes specific options,
     restrictions, and facilities available for the supported public
     ISDN networks.

                       Table 3 - Options/Facilities

                                     6

 


     VAX ISDN, Version 1.1                               SPD 31.23.01




                               ISDN NETWORK
     ________________________________________________________________
     Description________NUM___ATT___DBP___BT____NTT__________________

     charging infor-    yes   no    yes   no    yes
     mation at end
     of call
     incoming ad-       yes   no    yes   no    yes
     dress
     sub-address        yes   no    yes   yes   yes
     reverse charg-     no    no    no    no    no
     ing
     user-to-user       yes   no    no    no    yes
     signaling
     during call
     establishment
     Semi-permanent     no    no    yes   no    no
     Service_________________________________________________________


     SOFTWARE WARRANTY

     Digital has designed or adapted this software product to operate
     with the public ISDN networks in the associated countries listed
     in Table 1.

     The presence of a network/country combination in Table 1 indi-
     cates Digital's commitment to support VAX ISDN when using that
     public ISDN service. It does not necessarily imply that network
     certification by the particular networking authority has been
     granted for all or any hardware devices supported by the VAX
     ISDN software product. Please contact your local Digital office
     for up-to-date information regarding supported configurations
     and certification status.

     Warranty for this software product is provided by Digital with
     the purchase of a license for the product as defined in the
     Software Warranty Addendum of this SPD.

                                     7

 


     VAX ISDN, Version 1.1                               SPD 31.23.01




     [R]  AT&T is a registered trademark of American Telephone &
          Telegraph Company.

     [TM] The DIGITAL Logo, CI, DEC, DECnet, DECnet-VAX, DECsta-
          tion, DECsystem, ISDN, MicroVAX, VAX, VAXcluster, VAXft,
          VAXserver, VAXstation, and VMS are trademarks of Digital
          Equipment Corporation.































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