1.1 General Features134 Feature Manual9.5.4 Emergency Number & Others [5-4]—Extension Lock ClassFeature Manual References1.1.18 Call Log, Incoming1.1.49 Emergency Call1.1.55 Extension Lock1.1.61 Flexible Buttons1.1.117 Toll Restriction (TRS)Operating Manual References2.1.6 Remote Extension Lock2.1.7 System Feature Assignment—Extension Lock—CANCEL ALL, Extension Password Set3.1.3 Flexible Button Assignment—Extension Lock button1.1.108 Ring Tone Pattern SelectionDescriptionA different ring tone pattern can be assigned to each incoming call type, such as intercom calls ( [115]Extension Ring Tone Pattern), calls from each doorphone ( [706] Doorphone Ring Tone Pattern), andcalls from each outside (CO) line ( [423] CO Line Ring Tone Pattern).Available ring tone patterns are as follows:[Ring Tone Patterns]Conditions• The ring tone pattern for incoming calls (intercom calls and outside (CO) line calls) to a single linetelephone (SLT) can be fixed to "Single" or "Double" for each extension through system programming( [629] SLT Fixed Bell Pattern). The length of the ring tone pattern depends on the preprogrammedlength of the bell-on signal ( [143] SLT Ring Bell-on Time), combined with the ratio between the bellsignals of the SLT ( [142] SLT Ring/Silence Ratio). Depending on the type of SLT being used, theSingleDoubleTripleS-Double(Doorphone only)1 s
