Chapter 11. Dial Plan11-26 ATLAS 550 User Manual 61200305L1-1D64, D56,AUDIO , S PEECHThese options reflect the network provisions for this SPID. If the BRI waspurchased with different services provisioned for the SPIDs, then the callmust match the services supported.S TRIP MSD Write security: 3; Read security: 5Strips a selected quantity (choose from N ONE, 1, 2, and 3) of the Most Signif-icant Digits (MSD) of a dialed number prior to being forwarded out of theport.E XAMPLE:A network port could be set to accept all calls beginning with 9 (9$), andthen with STRIP MSD set to 1, all digits would be sent toward the networkexcept the leading 9.S 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 for 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 ACCEPT list, specify a SOURCE ID(s) as well as adialed number or range of dialed numbers to accept.E XAMPLE: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).CREATING DIAL PLANS—EXAMPLESThe ATLAS 550 D IAL PLAN acts as the numbering plan for switched connec-tions. This menu defines to the ATLAS 550 the phone numbers and featuresassociated with dual-tone-multifrequency (DTMF) dialing, Primary RateISDN (PRI), and Basic Rate ISDN (BRI). To operate as a switch, the ATLAS550 must be able to terminate network connections (Network terminations)and emulate the network onto other termination equipment (User termina-tions).STRIP MSD does not affect C ALL A CCEPT criteria. All of the digits(including the MSDs that are subsequently stripped) are used asaccept criterion.
