For build 3397 I noticed this new field under Physical Interfaces > Phone Port X: ToneOnPrimaryServiceDown
Admin manual says: Select the tone to play in place dial tone when the service corresponding to the Primary Line is out-of-service. Choose from:
- No Tone
- Normal Dial Tone
- SIT Tone 1
- SIT Tone 2
- SIT Tone 3
- SIT Tone 4
I tried SIT Tone 1 setting this evening. It did not seem to work, I got regular dt, but I suspect not having waited long enough for the device to flag the SP1 service as being down.