At the time, iPhones used a combination of peer-to-peer communication and relays sent over servers owned by Akamai to connect users via FaceTime. After the ruling, Apple was forced to rely solely on Akamai's servers for a period of time, spiking their cost's significantly. Up to $50 million was paid to Akamai in one six-month period according to testimony from a follow-up lawsuit by VirnetX. Naturally, Apple engineers started looking for ways to cut this cost, and by iOS 7 a peer-to-peer alternative that didn't infringe on VirnetX's patents was implemented, but there was still too many people still using iOS 6.
The lawsuit alleges that Apple's solution, citing internal emails and sworn testimony from the VirnetX trial, was to "break" iOS 6's FaceTime compatability by prematurely expiring a vital digital certificate, and blaming the incompatibility on a bug. Apple's support documents, at the time, recognized this "bug."
The support page has been revised many times since its original 2014 posting, no longer mentioning the April 16, 2014 bug.
Plaintiffs argue that this causes measurable loss to the value of their phones and violated state consumer protection laws. Apple rebutted, contending that the loss of FaceTime resulted in no economic loss since it was a "free" service. This motion was denied by Judge Koh.
You can check the source link below for the full lawsuit filing.