Patent ID: 11968266
Assignee: RIBBON COMMUNICATIONS OPERATING COMPANY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 0:
1. A method of operating a first client communications device, the method comprising:
downloading, by the first client communications device, a client application;
operating the client application, within a web browser on the first client communications device, to send a signal to initiate a communications session with a second client communications device;
receiving, by the first client communications device, session state information from a first communications server which uses Session Initiation Protocol (SIP) signaling to establish a communications session between said first client communications device and said second client communications device, said session state information being for the established communications session between said first client communications device and said second client communications device;
operating the web browser on the first client communications device to store said received session state information in said first client communications device;
operating the web browser on the first client communications device to provide said stored session state information to a second communications server following a loss of a connection with the first communications server;
wherein said session state information received by the first client communications device is encrypted by the first communications server;
wherein said encrypted session state information is generated by the first communications server; and
wherein said first client communications device does not have information needed to decrypt the encrypted session state information.