Chapter 3 - System Features 45Since a phone can have a different TRS Class assignment during Day, Night and Night 2 modes,the Walking TRS codes will follow these assignments. For example, long-distance calls can beallowed on the phone during the day, but restricted at night. " !• Allows a telephone to be restricted, but still allows certain users to override therestriction.# !• Warehouse telephones, waiting area, etc." '( &System Feature NotesAlarm Ringing to alert other users of unanswered callsAlarm Tone to alert the user of a lengthy CO callAnalog (AEC) Disconnect Signal for quick-disconnect from 3rd-party Voice Mail systemsAnalog Device CompatibilityAttendant Group up to 20 phones per Att.Group; each system mode (Day1,Day2, and Night) has its own Att.GroupAuto Day/Night Mode system automatically switches modes at preset timesAutomatic Route Selection (ARS) least cost routingAutomatic Trunk-to-Trunk Transfer automatically connect two outside calls togetherBackground Music (BGM) / Music-on-Hold(MOH) Separationa different music source for eachBattery Backup can support the phone system for up to 30 minutes at a timeBehind PBX/Centrex CompatibilityBLF Ringing FF-keys can be programmed to represent other extensionsBuilding Block Configuration up to 6 cabinets per systemBuilt-In 2-Way Voice Mail with 2-way call recording/storing capabilityBuilt-In ACD basic Automatic Call Distribution functionsCall Progress Tones dial tone, busy tone, ringback tone, error tone, confirmationtone, splash toneCaller ID LCD Display, Call Log, CTI, SMDR(available on display phones only)Centralized Attendant one Attendant position for all extensions in a tie-line networkCentralized Voice Mail one VM system serving multiple PBXs in a tie-line networkClass of Service (COS) CO/Tie-Line feature, Extension featureExtension-to-Extension and Trunk-to-Trunk restrictionClosed Numbering for networking systems togetherCO Trunk Interface DID, E&M Wink-Start, Ground-Start, ISDN BRI and PRI,Loop Start, T-1Computer Telephony Integration (CTI)Capability TAPI, PC Phone, PC AttendantConferencing 3-party to 8-party conferences, including up to 7 outside lines;2-party private conversations during a conference