| Order | Header | Start Date | End Date | Comments | Size | Archive |
|---|---|---|---|---|---|---|
| 1 | Registration required | 2010-02-21 18:33 | 2010-02-23 04:30 | 2 | 605 | Talk:Busy signal/Archives/2012 |
| 1 | Providers replacing the busy signal to thwart auto-redial? | 2010-08-07 01:04 | 2013-08-30 18:05 | 3 | 1553 | Talk:Busy signal/Archives/2013 |
| 1 | Subscriber line busy vs. trunk busy | 2013-08-26 18:39 | 2014-05-05 16:45 | 2 | 2027 | Talk:Busy signal/Archives/2014 |
