71Dialog 4420 IP BasicIndexLLamp indications 10Last External Number Redial 21MMaclicious Call Tracing 52Mailbox 46Make calls 19Malicious Call Tracing 52Manual Message Waiting (MMW) 42Message Waiting 43Messages 42Manual Message Waiting (MMW) 42Message Waiting 43Voice Mail 44Monitoring 26Mute 26Mute ring signal 54NNight Service 51Number Presentation Restriction 21OOther useful features 49Outgoing calls 19Bypass 25Call Waiting 23Callback 22External calls 19Individual External Line 20Internal calls 19Intrusion 24Last External Number Redial 21Monitoring 20Number Presentation Restriction 21SOS calls (Emergency calls) 20When you receive a busy tone 22PParallel Ringing 17Personal Number 33Pull-out leaf 56RRefer Back 27Reset the phone 13Ring signal volume 54Ring signals 12SSafety instructions 6Setting form for search profiles 39Settings 54Handset and loudspeaker volume 54Mute ring signal 54Ring signal volume 54Silent Ringing 55Silent Ringing 55SOS calls (Emergency calls) 20Start the phone 13Startup procedure 13TTo access your IP phone from a PC 58Tones and signals 11Troubleshooting 68VVoice Mail 44Volume 54WWarranty 5Web server 57Welcome 4When you receive a busy tone 22