Patent ID: 9537569
Date: 2017-01-03
CPC Classifications: G01S,H04B

Claim:
1. A method to respond to an interrogation from a remote device, the method comprising: decoding, by executing an instruction with a processor, both a first code and a request for a description of supported voice capabilities included in a same first signal received at a first time from the remote device via an optical communication link; when the first code is determined to match a handshake code, determining, by executing an instruction with the processor, a second signal to send via the optical communication link in response to the first signal, the second signal sent at a second time later than the first time, the second signal including a second code responsive to the first code and a response including the description of the supported voice capabilities; and after the second signal is sent via the optical communication link, exchanging voice communications with the remote device via the optical communication link.