Number | Name | Date | Kind |
---|---|---|---|
4766604 | Axberg | Aug 1988 | |
4825460 | Carter et al. | Apr 1989 | |
4972461 | Brown et al. | Nov 1990 | |
5003584 | Benyacar et al. | Mar 1991 | |
5023868 | Davidson et al. | Jun 1991 | |
5099509 | Morganstein et al. | Mar 1992 | |
5134646 | Carlson | Jul 1992 | |
5311574 | Livanos | May 1994 | |
5333186 | Gupta | Jul 1994 | |
5455852 | Elrod et al. | Oct 1995 | |
5483582 | Pugh et al. | Jan 1996 | |
5504805 | Lee | Apr 1996 |
Number | Date | Country |
---|---|---|
157257 | Sep 1983 | JPX |
Entry |
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Digital Sound Corporation "Voiceserver Automated Attendant" Advertisement, Nov., 1988. |