May 2001System Hardware Manual 2 - 33A6-324000-642-01 – Release 4.0May 20014.10 Audible and Visual IndicationsThe tables in this section provide the audible and visual indicationsused in the Xen systems.4.10.1 Tone PatternsTones are used in the Xen systems to inform the stationuser of various functions of the systems such as, dial tone,busy tone, or ringback tone. Table 2-22 Tone Patterns liststhe frequency and the pattern for the tones used in theXen system.4.10.2 LED Flash PatternsThe Xen system provides 2-color LEDs. Green is usedprimarily for I-Use conditions and for outside calls. Red isused primarily for Other Use conditions and internal calls.Refer to.Table 2-22 Tone PatternsSystem Tone(Fixed)Frequency (Hz)(Fixed)Cadence(Default) CycleBusy Tone (Aust.) 425 80 IPMCall Waiting Tone 44020 Hz Mod. 60 IPMSecond Dial Tone 4400.25 sec On0.25 sec Off0.25 sec On1.25 sec OffHowler Tone 240016 Hz Mod. ContinuousInternal Dial Tone 450/350 ContinuousInternal Ringback Tone 42525 Hz Mod.0.4 sec On0.2 sec Off0.4 sec On2.0 sec OffLCR Dial Tone 400 ContinuousReorder Tone 425 2.5 sec On0.5 sec OffService Set Tone 800 ContinuousBusy Tone (NZ) 400 60 IPMNV Tone (NZ) 4000.075/0.10.075/0.10.075/0.10.075/0.40 .37 50.3 75.50.50.25.25.2 51.250.4.020.42.0.052.50.50.50.10.075 0.0750.4