2 - 600 Memory Blocks___________________________________________________________________________________Document Revision 4 Electra Elite IPK___________________________________________________________________________________4-91 Telephone Ringing VariationSelectionGeneral DescriptionUse this Memory Block to assign a Low, Medium, or High ringing tone frequency whenTelephone is specified in Memory Block 1-1-28 (Distinctive Ringing by Telephone orCO Selection).DisplaySettingsLK 1 LK 2 LK 3 LK 4 LK 5 LK 6 LK 7 LK 8 The shadedselection is thedefault.M L HProgramming Procedures1 Go off-line.2 Press LK4 + IA to access the Memory Block.3 Press the line Key to select ringing frequency for Tel Port No.