RecepTrexx v. RingCentral: Cellular Message Playback Patent Suit Dismissed in 86 Days
RecepTrexx LLC filed suit against cloud communications giant RingCentral, Inc. in the District of Delaware asserting reissue patent USRE042997E, which covers triggered playback of recorded messages to incoming cellular telephone calls. The action was voluntarily dismissed without prejudice just 86 days after filing, before RingCentral had answered or moved for summary judgment.
Early voluntary exit before RingCentral even answered the complaint
On 5 February 2024, RecepTrexx LLC filed a patent infringement action against RingCentral, Inc. in the District of Delaware before Judge Jennifer L. Hall. The single asserted patent — USRE042997E, a reissue of US application 12/001974 — covers triggered playback of recorded messages to incoming telephone calls on a cellular phone, a technology directly relevant to RingCentral’s cloud-based communications and auto-attendant product portfolio.
On 1 May 2024, RecepTrexx filed a notice of voluntary dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(i), formally ending the action. Because RingCentral had not yet answered the complaint or moved for summary judgment at that point, RecepTrexx was entitled to dismiss as of right — without requiring court approval or the defendant’s consent. The notice states the dismissal is ‘without prejudice,’ meaning RecepTrexx retains the ability to re-file the same claims, subject to applicable statutes of limitations and any separately negotiated terms.
An 86-day lifespan ending before any substantive court activity is consistent with several scenarios: early settlement discussions, a licensing agreement reached outside the docket, a strategic recalibration of the enforcement campaign, or a decision to re-file in a different venue. The public record does not disclose any settlement terms, licensing payments, or other agreements, leaving the true commercial resolution unknown. The reissue patent status of USRE042997E — indicating the patent was corrected post-grant — may warrant close monitoring for future assertions.
Filing to Voluntary dismissal in 86 days
86 days — resolved well under the median district court patent case duration of 2–3 years
Voluntarily dismissed: what the Rule 41 exit means for both parties
Rule 41(a)(1)(A)(i): dismissal as of right, no court order needed
Federal Rule of Civil Procedure 41(a)(1)(A)(i) allows a plaintiff to dismiss an action without a court order at any time before the defendant has served an answer or a motion for summary judgment. RecepTrexx exercised this right on 1 May 2024. Because no court order is required, the dismissal is self-executing upon filing of the notice — there is no judicial finding on the merits of the patent or the alleged infringement.
No merits adjudicationDismissal ‘without prejudice’ leaves the door open — but the record is limited
The notice expressly states the dismissal is without prejudice, meaning RecepTrexx is not barred from reasserting USRE042997E against RingCentral in a future action. This contrasts with a dismissal with prejudice, which would function as a final adjudication on the merits and preclude re-filing. However, the public docket does not disclose whether any private settlement or licensing agreement accompanies this dismissal — any such terms would govern the practical ability to re-litigate regardless of the without-prejudice designation.
Re-filing not foreclosedRingCentral exits without admitting liability or paying publicly disclosed damages
RingCentral, Inc. had not filed an answer or any substantive response before the dismissal, meaning the company exits this action without any finding of infringement, validity determination, or publicly disclosed financial obligation. However, the without-prejudice dismissal means RingCentral’s exposure to this patent is not permanently resolved. Future product development in call routing, auto-attendant, and recorded-message playback should still account for USRE042997E remaining an active enforcement risk.
No liability finding; risk persistsReissue patents in UCaaS: enforcement risk does not expire with the docket
Reissue patents like USRE042997E have undergone post-grant correction, which can broaden or clarify claim scope relative to the original grant. For UCaaS and cloud telephony providers, triggered message playback to incoming cellular calls is a core feature — auto-attendant, voicemail-on-ring, and IVR routing all potentially fall within this space. A voluntary dismissal without prejudice from a patent assertion entity in this sector is often a prelude to continued licensing activity or a re-filed action, not a permanent resolution. Competitors should monitor future filings by RecepTrexx.
Monitor for re-filing or licensingFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | RecepTrexx, LLC | Company | Patent assertion entity — holder of USRE042997E covering cellular phone message playbackSearch in Eureka ↗ |
| Defendant | RingCentral, Inc. | Company | RingCentral, Inc. — publicly traded cloud communications and UCaaS platform providerSearch in Eureka ↗ |
| Plaintiff counsel | Antranig N. Garibian | Attorney | Counsel for RecepTrexx, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Garibian Law Offices, PC | Law Firm | Representing RecepTrexx, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Jennifer L. Hall | Judge | Delaware District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) and confirms RingCentral had not yet answered or moved for summary judgment — the two procedural triggers that would have required either defendant consent or court approval to dismiss. The explicit ‘without prejudice’ designation is legally significant: it preserves RecepTrexx’s right to re-assert USRE042997E against RingCentral in future proceedings. No merits determination was reached on infringement or patent validity, leaving both questions entirely open for any subsequent action.
USRE042997E — Triggered playback of recorded messages to cellular phone calls
USRE042997E is a United States reissue patent, corrected from original application US 12/001974. Reissue patents undergo a formal USPTO re-examination process to correct errors in the original grant — this process can refine or broaden claim scope and typically results in claims that have received additional USPTO scrutiny. The patent covers triggered playback of recorded messages to incoming telephone calls directed to a cellular phone, a technology that sits at the intersection of cellular telephony, call routing, and automated message delivery systems.
For the UCaaS and cloud communications sector, this patent’s claim domain is commercially significant. Auto-attendant systems, IVR platforms, voicemail-on-ring features, and programmatic call routing — all central to RingCentral’s product offering — may fall within the scope of triggered recorded message playback to cellular endpoints. The reissue designation suggests the patent holder has invested in strengthening claim coverage, making USRE042997E a higher-credibility enforcement asset than a standard grant. Competitors operating in cloud telephony, CPaaS, or enterprise communications should map their feature sets against this patent’s claims as part of routine IP risk management.
Should your UCaaS or cloud telephony product run an FTO against USRE042997E?
Any product team building or maintaining auto-attendant, IVR, voicemail, or call routing features that play recorded messages to incoming cellular calls should treat USRE042997E as a priority FTO target. The patent’s claim scope — validated through the reissue correction process — covers a broad and commercially active feature category. RingCentral’s dismissal without prejudice does not constitute a validity or non-infringement finding that competitors can rely upon. Independent FTO analysis is essential before launching or updating products in this space.
PatSnap Eureka’s FTO Search Agent can map the claims of USRE042997E against your product’s technical specification, identify prior art that may limit enforceability, and surface related litigation involving the same patent family or technology space. For in-house teams monitoring RecepTrexx’s enforcement activity, Eureka’s litigation monitoring tools can alert you to new filings in real time — giving procurement, product, and legal teams the lead time needed to respond strategically rather than reactively.
Run a freedom-to-operate analysis on USRE042997E to assess your product’s exposure
Run FTO in Eureka →Similar patent cases: cellular telephony and UCaaS infringement actions in Delaware
Explore related patent infringement actions asserting cellular call routing and message playback technologies in the District of Delaware and comparable venues.
What this case signals for the UCaaS and cloud telephony IP landscape
A fast voluntary dismissal before any answer suggests a strategic manoeuvre — either a deal was reached or enforcement strategy is shifting.
Pre-answer dismissals often signal off-docket licensing activity
When a plaintiff dismisses without prejudice before the defendant answers, it frequently suggests that parallel licensing discussions have reached a conclusion — or that the plaintiff is repositioning before a broader campaign. RingCentral competitors in the UCaaS space should treat this dismissal as a signal, not a resolution, and review their exposure to USRE042997E’s claims on recorded message playback to cellular calls.
Reissue patent status elevates enforcement credibility
USRE042997E is a reissue patent, meaning the USPTO reviewed and corrected the original grant. This post-grant scrutiny can strengthen claim validity arguments and makes the patent a more credible enforcement tool. UCaaS, IVR, and auto-attendant technology teams should prioritise an FTO analysis against this patent, particularly given the broad relevance of cellular call message playback functionality across modern communications platforms.
RecepTrexx v RingCentral — key questions answered
The case was voluntarily dismissed without prejudice by RecepTrexx LLC on 1 May 2024 under Federal Rule of Civil Procedure 41(a)(1)(A)(i). RingCentral had not yet answered the complaint or moved for summary judgment at the time of dismissal. No merits ruling on infringement or patent validity was issued. The without-prejudice designation means RecepTrexx may re-assert the patent in a future action.
USRE042997E is a US reissue patent covering triggered playback of recorded messages to incoming telephone calls directed to a cellular phone. RingCentral, as a major UCaaS and cloud communications platform, offers auto-attendant, IVR, and call routing features that may involve recorded message playback to cellular endpoints — the technology domain squarely addressed by this patent. The reissue status indicates the patent has undergone post-grant correction, potentially strengthening its claim scope.
A voluntary dismissal without prejudice under Rule 41(a)(1)(A)(i) means the plaintiff ends the action of its own accord before the defendant answers, with no court approval required. ‘Without prejudice’ means the plaintiff is not barred from re-filing the same claims against the same defendant in a future action. No finding on patent validity or infringement is made. It differs from a dismissal with prejudice, which functions as a final judgment on the merits and bars re-filing.
The public record does not disclose the reason for the rapid dismissal. Common explanations for pre-answer voluntary dismissals in patent cases include: a privately negotiated licensing agreement or settlement reached off-docket; a strategic decision to re-file in a different venue or on revised claim theories; or a preliminary assessment that the enforcement campaign required recalibration. None of these scenarios can be confirmed from the available court record.
Yes. The without-prejudice dismissal means USRE042997E remains an active enforcement asset. RecepTrexx can re-assert the patent against RingCentral or file separate actions against other UCaaS and cloud telephony providers whose products involve triggered recorded message playback to cellular calls. The reissue status of the patent adds credibility to future enforcement. Competitors operating auto-attendant, IVR, voicemail, or similar call routing features should conduct FTO analysis against this patent’s claims.
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