2 - 438 Memory Blocks___________________________________________________________________________________Document Revision 4 Electra Elite IPK___________________________________________________________________________________3-15 Trunk DTMF Duration/InterdigitSelectionGeneral DescriptionUse this Memory Block to specify the tone duration/interdigit time of dual-tonemultifrequency (DTMF) signals.DisplaySettingsLK 1 LK 2 LK 3 LK 4 LK 5 LK 6 LK 7 LK 8 The shadedselection is thedefault. Timesare inmilliseconds.60/70 60/80 110/80 160/80 210/80 410/100 610/100 810/190Programming Procedures1 Go off-line.2 Press LK3 + G + AEto access the Memory Block.3 Press the corresponding CO/PBX line key to change tone duration/interdigit time for CO/PBX No.