Feature Guide References1.1.1.4 Multiple Subscriber Number (MSN) Ringing ServiceMusic on Hold• 4.3 [2-2] Operator & BGM– BGM and Music on Hold—Music Source of BGM2 (KX-TDA100/KX-TDA200/KX-TDA600 only)– BGM and Music on Hold—Music Source of BGM (KX-TDA30 only)– BGM and Music on Hold—Music on Hold• 4.19 [2-11-1] Audio Gain—Paging/MOH– MOH—MOH 1 (Music On Hold 1) (KX-TDA100/KX-TDA200/KX-TDA600 only)– MOH—MOH 2 (Music On Hold 2) (KX-TDA100/KX-TDA200/KX-TDA600 only)– MOH—MOH (Music On Hold) (KX-TDA30 only)Feature Guide References1.13.4 Music on HoldNetwork Direct Station Selection (NDSS) (KX-TDA0920/KX-TDA3920/KX-TDA6920 required)• 3.14 [1-1] Slot—Port Property - BRI Port—ISDN CO— Networking Data Transfer• 3.16 [1-1] Slot—Port Property - PRI Port (KX-TDA100/KX-TDA200/KX-TDA600 only)—CO Setting—Networking Data Transfer• 4.11 [2-7-1] Class of Service—COS Settings—Programming & Manager— Manager• 6.5 [4-1-4] Wired Extension—Flexible Button– Type– Dial (for NDSS)• 6.8 [4-1-6] Wired Extension—NDSS Link Data - Send• 6.13 [4-2-3] Portable Station—Flexible Button– Type– Dial (for NDSS)• 6.15 [4-2-4] Portable Station—NDSS Link Data - Send• 6.17 [4-3] DSS Console– Type– Dial (for NDSS)• 11.2 [9-2] Network Data Transmission• 11.3 [9-3] Network Operator (VoIP)• 11.4 [9-4] NDSS Key TableFeature Guide References1.30.5.1 Network Direct Station Selection (NDSS)Network ICD Group• 4.17 [2-9] System Options—Option 4— Send CLIP of CO Caller to ISDN—when ICD Group with CellularPhone894 PC Programming Manual14.2 Feature Programming References