| Number | Name | Date | Kind |
|---|---|---|---|
| 4747127 | Hansen et al. | May 1988 | |
| 4748656 | Gibbs et al. | May 1988 | |
| 4782517 | Bernardis et al. | Nov 1988 | |
| 4788720 | Brennan et al. | Nov 1988 | |
| 4897866 | Majmudar et al. | Jan 1990 | |
| 5001710 | Gawrys et al. | Mar 1991 | |
| 5008930 | Gawrys et al. | Apr 1991 | |
| 5239460 | LaRoche | Aug 1993 | |
| 5353339 | Scobee | Oct 1994 | |
| 5355404 | LeDuc et al. | Oct 1994 | |
| 5373549 | Bales et al. | Dec 1994 | |
| 5377261 | Baals et al. | Dec 1994 | |
| 5465286 | Clare et al. | Nov 1995 | |
| 5485511 | Iglehart et al. | Jan 1996 | |
| 5517562 | McConnell | May 1996 | |
| 5541986 | Hou | Jul 1996 | |
| 5544236 | Andruska et al. | Aug 1996 |
| Entry |
|---|
| H. Newton, A Microsoft Fantasy, Computer Telephony, Jan./Feb. 1994, pp. 9, 10, 12, 15-16. |
| "Definity Communications System", Generic 3, Feature Description, vol. 1, AT&T 555-230-204CI, Issue 2, Sep. 1995, pp. 3-117-3-124 and pp. 3-826-3-830. |