Affiliate Disclosure
If you buy through our links, we may get a commission. Read our ethics policy.

VoIP-Pal again accuses Apple of patent infringement in new lawsuit

Credit: Apple

VoIP-Pal, which owns a portfolio of communications patents, has filed a new lawsuit claiming that the underlying system powering Apple's iMessage and FaceTime infringes on its intellectual property.

The complaint, lodged in the U.S. District Court for the Western District of Texas, targets the "Apple Calling System" communications platform that includes Apple's server infrastructure, consumer devices, and software applications.

According to the lawsuit, this system infringes on a pair of patents held by VoIP-Pal. U.S. Patents No. 8,630,234 and No. 10,880,721 are both titled "Mobile Gateway" and detail a method of initiating phone calls by transmitting various codes between a caller and callee.

Apple's system infringes on the IP because they transmit various access codes or identifiers to support calling functionality in iMessage, FaceTime, and other systems, the lawsuit claims

"The Apple Calling System produces an access code identifying a communication channel useable by the mobile telephone or device to initiate a call to a callee using the channel. In the Apple Calling System, the access code is based on a location identifier and/or based on a location pre-associated with the mobile telephone or device," the lawsuit reads.

Additionally, the plaintiff also accuses Apple of knowingly infringing on the communication protocol patents.

Apple had knowledge of the patents since at least November 2015, when VoIP-Pal sent a letter notifying the Cupertino tech giant of the patent applications that would eventually become the patents-in-suit. VoIP-Pal reportedly offered Apple a license to its patent portfolio, which Apple refused.

As such, the complaint alleges that Apple is knowingly infringing on VoIP-Pal's intellectual property.

This isn't the first time that VoIP-Pal has sued Apple for alleged patent infringement. Back in 2016, it levied a lawsuit claiming $2.8 billion in damages because of features like iMessage. It again accused Apple of patent infringement in 2018, as well as in April 2020.

Apple has challenged the various lawsuits over the years. However, not all of its attempts have been successful. In November 2020, VoIP-Pal won an appeal in the Federal Circuit, bringing ongoing litigation back to lower courts.

The lawsuit on Friday, which demands a jury trial, seeks an order enjoining Apple from infringing on the patents-in-suit and damages for the alleged infringement, among other prayers for relief.

Keep up with everything Apple in the weekly AppleInsider Podcast — and get a fast news update from AppleInsider Daily. Just say, "Hey, Siri," to your HomePod mini and ask for these podcasts, and our latest HomeKit Insider episode too.

If you want an ad-free main AppleInsider Podcast experience, you can support the AppleInsider podcast by subscribing for $5 per month through Apple's Podcasts app, or via Patreon if you prefer any other podcast player.