2.9 [3] GroupPC Programming Manual 5132.9.19 [3-8-1] VM(DTMF) Group—System SettingsA Panasonic Voice Processing System (VPS) with DTMF Integration can be connected to SLT portsof the PBX. The SLT ports that are connected to the VPS are called a VM (DTMF) Group. A maximumof 2 (with the KX-TDA30/KX-TDA100/KX-TDA200) or 8 (with the KX-TDA600) VM (DTMF) Groupscan be programmed.For more information on Voice Mail groups and DTMF integration, see "1.24.1 Voice Mail (VM) Group"and "1.24.2 Voice Mail DTMF Integration" in the Feature Guide.VM DTMF Status Signal—Ringback ToneSpecifies the DTMF status signal the PBX sends to the VPS when the called extension is ringing.Value RangeMax. 4 digits (consisting of 0–9, *, #, and P [pause])Maintenance Console Location2.9.19 [3-8-1] VM(DTMF) Group—System SettingsProgramming Manual ReferencesNoneFeature Guide ReferencesNoneVM DTMF Status Signal—Busy ToneSpecifies the DTMF status signal the PBX sends to the VPS when the called extension is busy.Value RangeMax. 4 digits (consisting of 0–9, *, #, and P [pause])Maintenance Console Location2.9.19 [3-8-1] VM(DTMF) Group—System SettingsProgramming Manual ReferencesNoneFeature Guide ReferencesNoneVM DTMF Status Signal—Reorder ToneSpecifies the DTMF status signal the PBX sends to the VPS when the dialled number is invalid.Value RangeMax. 4 digits (consisting of 0–9, *, #, and P [pause])