Cabletron Systems Cabletron CyberSWITCH CSX5500 User Manual

Also see for CyberSWITCH 5500: Quick start Manual

Contents

Central Site Remote Access Switch 123C ONFIGURING RESOURCES AND L INESLinesNI-1 and DMS100 switch types, contact your Service Provider for the number of data linksrequired.The table below summarizes the number of data links and SPIDs that are required for each switchtype.When adding a data link for BRI lines, designate whether to use Automatic TEI Negotiation.Automatic TEI Negotiation is used UNLESS this is a point-to-point NTT line. If you do not useAutomatic TEI Negotiation, a TEI value is required. The default TEI value is 0, which is normallycorrect for a point-to-point NTT line. For PRI lines, use the default TEI value of 0.Data links are handled differently for DMS and NI-1 switches. For most switches, the BRI line hasonly one phone number (for the Data Link), but it can handle two calls (one for each bearerchannel). For DMS and NI-1 switches, the BRI line has two SPIDs, and two phone numbers. Notethat either SPID can use either bearer channel. There is no one-to-one correspondence. You mustenter the number of digits to verify (starting at the right-most digit), so that when the systemreceives a phone call it can determine on which bearer to accept the phone call. The maximumnumber of digits should be 7, which is the default value in most cases.S ERVICE P ROFILE ID (SPID)For basic rate lines only. SPIDs are only required for DMS100 and NI-1 switch types. A SPID is anumber that identifies ISDN equipment attached to your ISDN line. Depending on the type ofISDN service you have, you may have one, 2, or no SPIDs. When ordering your ISDN service, yourservice provider should supply you with SPID information.A SPID is usually derived from the ISDN line’s telephone number. It may include the area code. Itmay also include a special prefix and/or suffix (for example, a prefix of 9 for Centrex lines).The SPID format for AT&T 5ESS NI-1 Service is:01nnnnnnn0ttwhere nnnnnnn is the 7 digit phone number (no area code) of the BRI linett is a user assigned 2 digit terminal Id code, 00 is normally usedThe SPID format for AT&T 5ESS Custom Multipoint Service is:01nnnnnnn0where nnnnnnn is the 7 digit phone number (no area code) of the BRI lineSwitch Type Number of DataLinksNumber of SPIDs Number ofDirectory NumbersDMS100 custom 2 2 2NI-1 1 or 2 1 or 2 1 or 2all other 1 0 0