| Patent Number |
Title Of Patent |
Date Issued |
| 6636519 |
Network access method and network access server therefor |
October 21, 2003 |
| Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call |
| 5912888 |
Digital network access server |
June 15, 1999 |
| Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call |
| 5841842 |
Telephone call routing and switching techniques for data communications |
November 24, 1998 |
| A method of processing incoming digital telephone calls from remotely located call originators which are destined for receipt by a host computer system. The host computer system is linked to the telephone network by a network access server. The call originators may be any type of data |
| 5761281 |
Telephone call routing and switching techniques for data communications |
June 2, 1998 |
| A method of processing incoming digital telephone calls from remotely located call originators which are destined for receipt by a host computer system. The host computer system is linked to the telephone network by a network access server. The call originators may be any type of data |
| 5577105 |
Telephone call routing and switching techniques for data communications |
November 19, 1996 |
| A method of processing incoming digital telephone calls from remotely located call originators which are destined for receipt by a host computer system. The host computer system is linked to the telephone network by a network access server. The call originators may be any type of data |
| 5528595 |
Modem input/output signal processing techniques |
June 18, 1996 |
| Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call |
