Skip to main content

Klausner unleashes new horde of visual voicemail lawsuits

Klausner Technologies
Image used with permission by copyright holder

Klausner Technologies might just be the little patent holding company that could: the company has announced it has launched a dozen new lawsuits against major technology companies for infringing on its visual voicemail patents. And while the list of new litigation targets includes some firms consumers may never have heard of, it does include some very big names, including Toshiba, NEC, Samsung, Alcatel-Lucent, and Seimens.

At issue in the suits are over two dozen patents central to visual voicemail, which Judah Klausner pioneered back in the 1970s while doing work on early PDA technologies. And Klausner’s patents seem to be holding up to litigation just fine: no one has sucessfully challenged the validity of Klausner’s patents, and the company has inked licensing agreements with very high-profile companies—including Apple, Sprint, and Google.

“Thirty-three companies worldwide have now signed patent license agreements with us under our Visual Voicemail patents. As the inventor of these patents and on behalf of our company, I just can’t allow unlicensed companies to use our IP,” said Judah Klausner, in a statement.

The companies targeted in the new round of lawsuits are Shortel, Toshiba, Mitel, J3 Global Communications, Alcatel-Lucent, Paetec, Primus Telecommunications, Samsung, Siemens Enterprise Communications, Windstream Corporation, NEC, and XO Holdings. The suits have all been filed in in the patent holder-friendly Eastern District of Texas; California law firm Dovel & Luner is handling the cases for Klausner.

Geoff Duncan
Former Digital Trends Contributor
Geoff Duncan writes, programs, edits, plays music, and delights in making software misbehave. He's probably the only member…
Want to use Apple’s AI features? Make sure you have one of these iPhones
Blue Titanium (left) and Natural Titanium iPhone 15 Pros on a concrete bench.

Apple’s WWDC 2024 keynote was one of its biggest in years. Not only did we see some big changes coming to iOS 18, like new ways to customize your home screen even more but we are also getting a ton of new AI features.

Apple Intelligence, as Apple calls it, is a suite of powerful AI tools that will help make your life even easier. From new writing tools and summarization features to image generation and even creating any emoji you’d ever need, Apple Intelligence definitely looks impressive.

Read more
I can’t wait to make my iPhone look like Android with iOS 18
An iPhone home screen with iOS 18.

Apple’s WWDC 2024 keynote was quite a spectacle. It showed off a ton of new features coming to iOS 18, iPadOS 18, and macOS Sequoia, with most of it being powered with Apple Intelligence -- Apple’s own brand of AI.

But there were some other non-AI features, too, including some much-needed changes to the iPhone's home screen. It’s been a while since Apple really overhauled the home screen, the last time being iOS 14 and the ability to add widgets and create custom app icons through Shortcuts. With iOS 18, users can further customize their home screen with new ways to rearrange apps and widgets, plus the ability to theme app icons like never before.

Read more
The Apple Watch Series 10 could be the biggest Apple Watch upgrade in years
Control Center on the Apple Watch Series 9.

Over the past few months, we’ve come across multiple rumors claiming that the 10th-anniversary edition of the Apple Watch will finally bring a major design and functional refresh. Now, TFI Securities analyst Ming-Chi Kuo is also backing those predictions.

In an investor post shared on Medium, Kuo writes that the Apple Watch Series 10 will be thinner. This comes just a day after Bloomberg reported that Apple is also eyeing a thinner iPhone and MacBook for the 2025 product upgrade cycle.

Read more