dialtone
- Sound on a landline phone
- Sound heard on a landline phone: 2 wds
- Sound heard from a landline phone: 2 wds
- Sound from a receiver
- Sound around a cradle
- Open line indicator
- One thing land-lines have that cellphones lack
- Landline signal
- Hum on a line
- Cellphone lack
- Calling sound
- "Ready" signal of a kind