Phone Waiting Tone & Busy Line Mode

Standard phone internal waiting signal beeps & busy line mode.
Pack includes 4 files, 2 of them are loopable:

1. Phone Line is Busy Signal - Loop (0:10)
2. Phone Waiting Tone - Loop (0:25)
3. Phone Line is Busy Signal - Single (0:01)
4. Phone Waiting Tone - Single (0:02)