Claims
- 1. A method of engaging in a secure communication session with one of a plurality of remote terminals, said method comprising the steps of:
- maintaining a list of approved network addresses;
- obtaining a current network address for said one remote terminal;
- determining whether said current network address corresponds to one of said approved network addresses; and
- automatically initiating a secure call setup procedure when said current network address corresponds to one of said approved network addresses;
- performing said full secure call setup process when no prior secure communication session has been conducted with said one remote terminal;
- performing said abbreviated secure call setup process when a prior secure communication session has been conducted with said one remote terminal.
- 2. A method of engaging in a secure communication session as claimed in claim 1 additionally comprising the steps of:
- detecting the receipt of an auto-secure signal from said one remote terminal; and
- automatically initiating said secure call setup procedure in response to said auto-secure signal.
- 3. A method of engaging in a secure communication session as claimed in claim 1 wherein said secure call setup procedure comprises a full secure call setup process and an abbreviated secure call setup process, and said method additionally comprises the steps of:
- performing said full secure call setup process when no prior secure communication session has been conducted with said one remote terminal; and
- performing said abbreviated secure call setup process when a prior secure communication session has been conducted with said one remote terminal.
- 4. A method of engaging in a secure communication session with one of a plurality of remote terminals, said method comprising the steps of:
- establishing a plain text communication session;
- detecting the receipt of an auto-secure signal from said one remote terminal; and
- automatically initiating a secure call setup procedure in response to said auto-secure signal;
- performing said full secure call setup process when no prior secure communication session has been conducted with said one remote terminal;
- performing said abbreviated secure call setup process when a prior secure communication session has been conducted with said one remote terminal.
- 5. A method of engaging in a secure communication session as claimed in claim 4 additionally comprising the steps of:
- maintaining a list of approved network addresses;
- obtaining a current network address for said one remote terminal;
- determining whether said current network address corresponds to one of said approved network addresses; and
- automatically initiating said secure call setup procedure when said current network address corresponds to one of said approved network addresses.
- 6. A method of engaging in a secure communication session as claimed in claim 4 wherein said secure call setup procedure comprises a full secure call setup process and an abbreviated secure call setup process, and said method additionally comprises the steps of:
- performing said full secure call setup process when no prior secure communication session has been conducted with said one remote terminal; and
- performing said abbreviated secure call setup process when a prior secure communication session has been conducted with said one remote terminal.
Parent Case Info
This is a division of application Ser. No. 08/172,971, filed Dec. 27, 1993 now U.S. Pat. No. 5,465,300.
US Referenced Citations (15)
Divisions (1)
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Number |
Date |
Country |
Parent |
172971 |
Dec 1993 |
|