Panasonic KX-TDE100 Features Manual page 333

2.8.18 [2-9] System Options—Option 3
→ Confirmation Tone—Tone 1 : Doorphone / Called by Voice
→ Confirmation Tone—Tone 2 : Paged / Automatic Answer
→ Confirmation Tone—Tone 3-1 : Start Talking after Making Call
→ Confirmation Tone—Tone 3-2 : Start Talking after Answering Call
→ Confirmation Tone—Tone 4-1 : Start Conference
→ Confirmation Tone—Tone 4-2 : Finish Conference
→ Confirmation Tone—Tone 5 : Hold
PT Programming Manual
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1.29 Audible Tone Features
Feature Guide 333