Panasonic KX-TDA30 Features Manual page 199

1.17 Optional Device Features
→MOH—MOH (Music On Hold) (KX-TDA30 only)
2.11.2 [5-2] External Pager
PT Programming Manual
None
User Manual References
1.8.8 Turning on the Background Music (BGM)
2.1.4 Turning on the External Background Music (BGM)
Feature Guide 199