This is a list of articles which pertain to telecommunications on 24.
“OPCOM was a secret CIA backchannel communications link, believed to have been inactive for...OPCOM
“A subchannel chip was a piece of telecommunications technology designed to receive a specific...Subchannel chip
“A VPN pathway was a way of stopping cell phone calls from being monitored. It could take someone...VPN pathway
“SIM cards—technology found in cellular phones—served to provide critical leads during the CTU...SIM card