Chapter 11. Dial Plan61200305L1-1 ATLAS 550 User Manual 11-25S OURCE ID Write security: 3; Read security: 5Simplifies the creation of a D IAL P LAN in applications where the criterion forswitching calls to a certain endpoint is a function of which endpoint origi-nated the call.• Default value = 0. The default ID for all endpoints is 0 and all acceptnumbers is 0. With default values, all calls are routed based only on thedialed number.• Multiple endpoints can have the same S OURCE ID.• When creating the C ALL A CCEPT list, specify a SOURCE ID(s) as well as adialed number or range of dialed numbers to accept.Example:An application requires that all calls that originate from Port 1 of theATLAS 550 in Slot 1 be switched to Port 2 of that same module. Assign aunique Source ID (e.g. 7) to Port 1 of the module, and then configure Port 2to only accept calls from that unique Source ID (7).QUAD BRI/U MODULE: USER TERMINATIONWhile interfacing to user equipment (terminal adapters), the ATLAS 550 actslike the network. When you are working in the U SER TERM section of theD IAL PLAN menu and S LT is defined as U-BRI-4, the following interface con-figuration options are available:S WITCH TYPE Write security: 3; Read security: 5Defines the type of ISDN switch that the port simulates. If connected toanother ATLAS, both need to be set to the same type. Choices includeL UCENT 5E, N ORTHERN DMS 100, and N ATIONAL -ISDN.S PID L IST Write security: 3; Read security: 5The port, acting as the network, must use a SPID and a phone number inorder to satisfy the ISDN connection protocol expected by the user’s Termi-nal Adapter (TA).P HONE N UMBER The phone number(s) assigned to this BRI phone line.SPID N UMBER Defines the SPID number(s) used for this BRI line. Although the value of theSPID is not significant, a SPID must be entered for each phone number. Forconvenience, the SPID can be set to be the same as the phone number.C ALLS For user terminations, the number of calls is fixed at 2.The ATLAS 550 does not support autoSPID detection software whichsome terminal adapters offer.
