498 / HardwareModular ICS 7.1 Installer Guide N0130943 02Selecting a protocolNow that the DTI card has been provisioned as PRI (or isalready part of the system) you can select a protocol.With the display showing PRI1. Press ≠.2. Press ‘ until the display shows Protocol:.3. Press CHANGE to select a different protocol from the tablethat follows:If you selected the NI-2 protocol, and you are using call-by-call services, you must specify how Norstar shouldhandle the NSF (Network Specific Facilities) informationelement as follows:• Press ≠.• Press ‘ until the display shows the defaultprotocol NSF EXT: None.• Press CHANGE to select another setting, based on yourswitch type, as shown in the following table:Protocol TypeNI-2, DMS100, DMS250,AT&T4ESSPublicSL-1 PrivateNote: This will not display unlessyou have entered the MCDNsoftware code.Central Office NSF Extension SettingDMS100 NoneSiemens ESWD, Lucent 5ESS WATSGTD5, DMS10 ALL