From telecom@eecs.nwu.edu Mon Nov 19 01:53:44 1990 Received: from hub.eecs.nwu.edu by gaak.LCS.MIT.EDU via TCP with SMTP id AA16770; Mon, 19 Nov 90 01:53:38 EST Resent-Message-Id: <9011190653.AA16770@gaak.LCS.MIT.EDU> Received: from UUNET.UU.NET by delta.eecs.nwu.edu id aa21959; 12 Nov 90 21:51 CST Received: from hayes.UUCP by uunet.uu.net (5.61/1.14) with UUCP id AA20270; Mon, 12 Nov 90 22:50:36 -0500 Path: hayes!tnixon From: Toby Nixon Newsgroups: comp.dcom.telecom Subject: Re: Request Info Sources About ISDN Message-Id: <2871@hayes.uucp> Date: 12 Nov 90 17:23:21 GMT References: <14545@accuvax.nwu.edu> Organization: Hayes Microcomputer Products, Norcross, GA Lines: 243 Apparently-To: comp-dcom-telecom Resent-Date: Mon, 19 Nov 90 0:55:42 CST Resent-From: telecom@eecs.nwu.edu Resent-To: ptownson@gaak.LCS.MIT.EDU Status: R I realize that comp.dcom.telecom is not the right place to post press releases, but for some reason I don't seem to have access to the "newprod" group, and a lot of folks have been asking about ISDN cards for AT-bus machines. So... attached is a recent press release from Hayes regarding our ISDN PC Adapter. -- Toby Nixon, Principal Engineer | Voice +1-404-449-8791 Telex 151243420 Hayes Microcomputer Products Inc. | Fax +1-404-447-0178 CIS 70271,404 P.O. Box 105203 | UUCP uunet!hayes!tnixon AT&T !tnixon Atlanta, Georgia 30348 USA | Internet hayes!tnixon@uunet.uu.net ---------------------------------------------------------------------------- HAYES MICROCOMPUTER PRODUCTS, INC. P.O. Box 105203 Atlanta, Georgia 30348 404/449-8791 FOR IMMEDIATE RELEASE Sharon O'Brien/Peggy Ballard H-1790 HAYES ANNOUNCES DISTRIBUTION AND SUPPORT PLAN FOR ISDN PC ADAPTER Atlanta, GA, 5 November 1990 -- Hayes Microcomputer Products, Inc. today announced immediate distribution and a comprehensive training and support plan for developers, resellers and end users of Hayes ISDN PC Adapter, an internal terminal adapter which provides the installed base of IBM PCs, ISA/EISA and compatible computers with ISDN functionality. End users can now purchase Hayes ISDN PC Adapter directly through Sales Support at 404/449-8791 for the full estimated retail price of US$1599 and CN$2199. Resellers, VARs and system integrators can purchase the product through Ingram Micro D, the initial wholesale distributor, located in Santa Ana, California at 800/456-8000. Hayes ISDN PC Adapter implements the CCITT Basic Rate Interface (2B+D) of ISDN and supports simultaneous voice and data communications. Specific features include Northern Telecom DMS-100 and AT&T 5ESS central office switch compatibility, CCITT X.25 and ANSI V.120 protocols, high-speed data transfer rates for circuit-switched and packet-switched data, as well as comprehensive support for ISDN voice services through two published standard interfaces: Hayes Standard AT Command Set Enhanced for ISDN and Hayes ISDNBIOS. Hayes ISDN Developer Program provides technical documentation for the Hayes AT Command Set Enhanced for ISDN and ISDNBIOS as well as technical telephone support. Hayes Developer Verification and Test Lab, located at Hayes ISDN Technologies in San Francisco, provides tools, equipment and services for testing the interoperability of products over live ISDN lines. Qualified developers can also purchase the adapter at a substantial discount from the estimated retail price. Software developers are presently taking advantage of the comprehensive support services available through Hayes ISDN Developer Program. Asynchronous communications packages currently supporting Hayes Standard AT Command Set for modem-like functionality through the adapter include Hayes Smartcom III and Smartcom Exec, and HyperAccess 5 (version 1.1) for DOS. ManyLink has also committed to supporting the Hayes ISDNBIOS in future software packages. Corporate users may obtain evaluation units of Hayes ISDN PC Adapter. Loaner units are also available for users such as ISDN service providers and VARs to display in demonstration centers and trade show exhibits. In addition, Hayes will be offering training courses for end-users and resellers beginning first quarter 1991. Participants will receive in-depth, hands-on product training from qualified Hayes representatives. "As people begin to move from analog to digital networks, it is important to support this transition not only through applications such as X.25 communications, but also through educational programs. Hayes has been actively involved in the development and implementation of ISDN for the past five years, and now we have taken our commitment one step further by providing extensive developer programs and support services for end-users, resellers and the developer community," said Hayes President Dennis C. Hayes. "ISDN will become the mainstream communications technology in the 1990s, and Hayes will remain a major player in ISDN development as this market matures." Best known as the leader in microcomputer modems, Hayes develops, supplies and supports computer communications equipment and software for personal computer and computer communications networks. The company distributes its products through an international network of authorized distributors, dealers, and original equipment manufacturers. ### Hayes ISDN PC Adapter The Hayes ISDN PC Adapter implements the CCITT ISDN Basic Rate Interface (2B+D) supporting simultaneous voice and data communications. This internal terminal adapter is designed for the installed base of IBM PC XT, AT and compatible personal computers. Specific ISDN features include support of Northern Telecom DMS 100 and AT&T 5ESS central office switches, CCITT X.25, ANSI V.120, high speed data rates for circuit switched and packet switched data, as well as comprehensive ISDN voice services. ISDN SERVICES (Basic Rate Access) Data Capabilities - Circuit switched data connection on a B channel can transmit at high speeds using either X.25 or V.120 protocols for rate adaption flow control, and error control. Packet switched data (which uses X.25) can be provisioned on a B Channel with up to 8 sessions. Packet switched data provisioned on the D Channel can also support up to 8 sessions. The actual total number of data sessions is dependent on the PC system memory available. Voice Capabilities - Circuit switched voice communications is available on one of the B channels using an analog phone attached to the RJ-11 connector on the adapter's back bracket. An external power supply is also included to provide voice communications even when the PC is powered off. The supported ISDN voice services include Basic Call Control; Flexible Call Offering - Conference, Drop, Transfer, Hold, Retrieve; Incoming and Outgoing Calling Line Identification; Feature Button Support for Supplementary Services; two call appearances, and in-band B channel Dual Tone Multiple Frequency (DTMF) signalling. Speed calling, call forwarding, call park, call pickup are examples of the Supplementary Services the ISDN PC Adapter supports. The exact options of the Feature Buttons supported are switch dependent. SUPPORTED SERVICE OPTIONS Combinations of these services are dependent on the switch's line provisioning. SWITCH/NETWORK COMPATIBILITY Switch Support - The Hayes ISDN PC Adapter System Software is the executable code that is uploaded to the adapter's on-board RAM by the PC at initialization. This flexibility provides an easy product upgrade path to address changes in standards and future enhancements. The ISDN PC Adapter system will be certified with the AT&T 5ESS Generic SE5, and the Northern Telecom DMS 100 BCS 29. Hayes will continue to develop System Software that will support additional switches and switch enhancements as the markets develop and these features become widely available to the general public. Network Support - Supports 64K Unrestricted or 64K rate adapted from 56K network transmission. ISDN STANDARDS SUPPORT Hayes supports Northern Telecom DMS 100 and AT&T 5ESS implementations of CCITT Q.931/I.451 which provides signaling and call control, and CCITT Q.921/I.441 which implements the specified Data Link Layer and provides error control. The Hayes ISDN PC Adapter also supports the CCITT I.430 network interface, and ANSI V.120 and CCITT X.25 for rate adaption and flow control. CCITT X.3 and X.29 are implemented for X.25 packet switched data on the B or D channel. X.28 functionality is provided through the Hayes Standard AT Command Set Enhanced for ISDN and ISDNBIOS. INTERFACES Analog Telephone Interface - Analog telephone interface is provided via an RJ-11 connector on the ISDN PC Adapter's back bracket. The adapter provides ring equivalence to support up to three 2500-type compatible analog devices such as telephones, modems, and Group III facsimile machines through the single RJ-11 connector. ISDN Line Interface - An RJ-45 connector on the back bracket is the physical interface for the ISDN Basic Rate S/T interface. PC Host Interface - There are two separate software interfaces to the Hayes PC Adapter. The adapter supports a serial data interface, like a modem, accessed via a COM port; and high speed data transfers are performed via shared PC memory using the Hayes ISDNBIOS Interface. Voice and data calls can be monitored and controlled through either of these interfaces. TRANSMISSION MODES When using the Hayes Standard AT Command Set Enhanced for ISDN, the following asynchronous character formats are supported in the adapter according to the following speeds and protocols: Data Formats: 7 data bits and 1 parity bit (even, odd, mark, or space), 8 data bits with no parity, and 1, 1.5, or 2 stop bits in the DTE-to-DCE direction, or 1 stop bit in the DCE-to-DTE direction. DTE Serial Interface Speeds supported: 300, 1200, 2400, 4800, 9600, 19200, 38400 bits per second. Through the Hayes ISDNBIOS Interface, the ISDN PC Adapter supports actual data transfers of over 50,000 bps. Rate adaption protocols are used to guarantee flow-controlled, in-sequence, unduplicated, and error controlled delivery of data. CONTROL AND OPERATION Hayes Standard AT Command Set Enhanced for ISDN - One of the PCA's Application Programming Interfaces (APIs) is the Hayes Standard AT Command Set Enhanced for ISDN. This API provides autobauding at up to 38.4Kbps and allows the PCA to provide high speed data services while emulating a Hayes Smartmodem. Voice call control and monitoring as well as multiple data calls on the 2B and D channels are available through this API. The available call types include PSD-D X.25, PSD-B X.25, V.120, and voice. Hayes ISDNBIOS Interface - To support the high data rates and access the multi-session capabilities of ISDN, Hayes has developed the Hayes ISDNBIOS Interface which provides an enhanced mode of operation. Through this interface, based architecturally on IBM NETBIOS, users can achieve actual data transfer rates of over 50,000 bps. This interface allows multiple applications operating in foreground or background to use the Hayes ISDN PC Adapter simultaneously, and is well suited for access by Terminate and Stay Resident (TSR) programs. The Hayes ISDNBIOS Interface is also the preferred interface for development of wide area networking (WAN) applications. Flow Control - When using the serial port, flow control between the terminal and terminal adapter is determined via AT commands. Flow control is inherent in the Hayes ISDNBIOS Interface and is handled automatically. Non-Volatile Memory - Non-volatile memory is provided to store configuration parameters. Once the Hayes ISDN PC Adapter has been configured for the line, it will remember this custom configuration even if the adapter is powered off or reset. CONFIGURATION AND DIAGNOSTICS An installation program helps the user identify their PC system configuration and install the Hayes ISDN PC Adapter with the appropriate System Software. Configuration of the PCA is made easy by the user-friendly Configuration Program and thorough documentation included with the PCA. OPERATING ENVIRONMENT The Hayes ISDN PC Adapter is for use with IBM PC XT, AT or 100% compatible personal computers. The system needs DOS 3.1, 3.2, or 3.3 version, a hard disk with at least 1.5M bytes available, and 640K bytes of system memory is recommended. Hayes, the Hayes logo, and the logo with Hayes are registered trademarks of Hayes Microcomputer Products, Inc.