Patent ID: 11876788
Assignee: ASSAC (S.Z.) NETWORKS ISRAEL LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 7:
8. A telephonic method enabling voice and/or text communication between secure POTS phones and clear IP phones, in which a termination gateway in connection with the PSTN performs steps of
a. receiving first clear IP tunneling data, from a clear switch in communicative connection with one or more clear IP phones;
b. transmitting second clear IP tunneling data to said clear switch;
c. converting said first IP tunneling data to first clear circuit-switched signals;
d. converting second clear circuit-switched signals to said second clear IP tunneling data;
e. transmitting first encrypted circuit-switched signals to secure modems of said secure POTS phones over said PSTN; and
f. receiving second encrypted circuit-switched signals over said PSTN, originating from said secure modems; and, the method further comprises a secure gateway modem, in communicative connection with said termination gateway, performing steps of
a. encrypting said first clear circuit-switched signals into said first encrypted circuit-switched signals; and
b. decrypting said second encrypted circuit-switched signals into said second clear circuit-switched signals;, said telephonic method further enables voice and/or text communication between secure IP phones and clear POTS phones, said method further comprising steps of
a. one or more secure IP phones transmitting and receiving encrypted IP voice data;
b. an encryption switch, in communicative connection with said secure IP phones and termination gateway, performing steps of
i. receiving said transmitted encrypted IP voice data from each of said secure IP phones;
ii. transmitting, to each of said secure IP phones, said received encrypted IP voice data;
iii. decrypting said transmitted encrypted IP voice data from each of said secure IP phones;
iv. converting said decrypted IP voice data to a third clear IP tunneling signal to said termination gateway;
v. receiving a fourth clear IP tunneling signal from said termination gateway; and
vi. converting and encrypting said fourth clear IP tunneling signal to said received encrypted IP voice data; and

c. the termination gateway in communicative connection with one or more clear POTS phones performing steps of
i. converting said third clear IP tunneling signal to clear circuit-switched signals received by said POTS phones; and
ii. converting clear circuit-switched signals received from said POTS phones to said fourth clear IP tunneling signal;, said telephonic method, further comprises a step of enabling communication between any combination of said secure POTS phones, said secure IP phones, smartphones installed thereon a non-interception application configured to effect transmission and reception of encrypted IP data, said clear POTS phones, said clear IP phones, and clear cellular phones.