As of 6 Nov 2026, the panel rates Aircall 3/5 and RingCentral RingEX 3/5 in Cloud Telephony (VoIP & Cloud PBX). Weighted by what each judge cares about, 1 of the 6 judges picks Aircall and 5 pick RingCentral RingEX. Aircall scores higher on 1 of 6 criteria (European sovereignty). RingCentral RingEX scores higher on 5 of 6 criteria (Apps, desk phones & Microsoft Teams, Calling, numbers & call routing, Reliability, call security & telecoms compliance, plus 2 more). Provenance — Aircall: EU-Made; RingCentral RingEX: Rest of world. Ratings are the AI panel’s opinion, formed from public evidence: how scores are made.
RingCentral RingEX takes the technical rows: six judges lean its way on calling and routing (7.0 to 5.8), apps and devices (5.8 to 4.2) and network and compliance (7.0 to 6.0), with integration and administration close (7.0 to 6.8; one lean, five ties); the contact centre splits the bench, 3 leans to RingEX and 3 ties (8.0 to 7.5). Aircall takes sovereignty 6.5 to 3.8, six judges leaning its way; its verdict credits a published processing agreement, CNIL supervision and per-country subprocessor list and weighs a US voice and transcription chain, and RingEX's privacy notice states EEA and UK data may be transferred to and stored on servers in the United States and Switzerland. Pricing transparency: Aircall 5.7 to 4.3, five leans, one tie; RingCentral publishes no prices. Five judges' totals favour RingEX, IT administrators 6.5 to 5.4; the data-protection officer takes Aircall, 6.4 to 6.2. No overall winner emerges.
Choose Aircall if
You need a published processing agreement, CNIL supervision and a per-country subprocessor list on file — the credits behind Aircall's sovereignty lean, 6.5 to 3.8 with six judges leaning its way.
Your compliance policy rules out a privacy notice stating that EEA and UK data may be transferred to and stored on servers in the United States and Switzerland — the finding beneath RingEX's sovereignty mean of 3.8.
You need licence prices in the open for budget sign-off — Aircall publishes licence prices and takes pricing transparency 5.7 to 4.3 (five leans, one tie); number and porting prices are not public.
You are buying under a data-protection mandate — the data-protection officer is the judge whose weighted total favours Aircall, 6.4 to 6.2.
Choose RingCentral RingEX if
You need desk phones and device provisioning — apps and devices goes RingEX 5.8 to 4.2 with six judges leaning its way, and Aircall's verdict found no public information on desk phones from named makers, DECT handsets or automatic provisioning.
Your calling and routing setup is the priority — six judges lean RingEX, 7.0 to 5.8.
You need the higher network and compliance score — six judges lean RingEX, 7.0 to 6.0.
You run outbound campaigns — the contact centre goes RingEX 8.0 to 7.5 (3 leans, 3 ties), with judges citing preview, progressive, predictive and voice-broadcast dialers and listen-whisper-barge supervision.
Your IT administrators and office managers hold the budget — their weighted totals favour RingEX, 6.5 to 5.4 and 6.3 to 6.0.
Read this comparison as one judge. Each weighs the same scores by what they care about.
The Skeptic
Has seen "all calls included" that excluded mobile numbers abroad, a "five-minute setup" followed by six weeks of porting, and an "AI assistant" that sent every recorded call to a model in the US. Asks what porting the numbers back out costs and how long it takes, whether the desk phones still work after leaving, who carries the calls, what the SLA pays when the platform is down — and what the second year costs.
Aircall
RingCentral RingEX
This judge's pick
Criterion by criterion
Calling, numbers & call routing
Aircall
IVR, queues, ring groups grouped by skill, time-based routing, recording with pause, queue callback, extensions and number porting are documented, with numbers creatable in over 100 countries. But we found no public information on emergency calls 110 and 112, fax, busy lamp fields or number blocks, and the porting page names the service without a process timeline, a cost, or what taking the numbers back out involves. That is solid mid-level telephony, not yet the routing stack a multi-site company runs on.
RingCentral RingEX
The drag-and-drop call flow editor, queues and ring groups with configurable answer order, time-based and holiday routing, voicemail-to-email transcription, fax on the same number, and a porting window of one to two weeks for free are all documented, and emergency calling is described country by country down to the registered-address rule for Germany. I found no public information on call park, busy lamp fields, number blocks, or recording consent announcements, so I stop short of the top.
Apps, desk phones & Microsoft Teams
Aircall
Desktop, mobile and browser access, iOS and Android apps, presence synchronised with Microsoft Teams, GSM fallback and business calls on mobile without exposing the private number are all documented. We found no public information on desk phones from named makers, automatic provisioning, DECT handsets, or devices sold or rented — the captured pages list VoIP hardphones generically — and the Teams connection is an app-based integration on AppSource rather than documented Direct Routing or Operator Connect calling.
RingCentral RingEX
Desktop, mobile and browser clients with presence sync and switching between devices are stated, and Teams telephony is documented through an embedded app and Direct Routing, including a Microsoft-certified contact centre and fax inside Teams. The only desk-phone procedure captured is manual provisioning of a Yealink through its own web UI with default admin credentials; I found no public information on a supported-device list, DECT handsets, devices for sale or rent, or fixed-mobile convergence.
Call centre, analytics & AI
Aircall
Skills-grouped routing, queue callback, a power dialer with outbound campaigns, call whispering, live dashboards and per-agent statistics are documented, and the AI side is unusually deep: transcription, summaries, an AI receptionist in 38 languages, AI messaging over SMS and WhatsApp, and even a claim of real-time AI coaching. We found no public information on barge-in, workforce management or quality scoring, and the product pages do not name the model providers behind each AI feature.
RingCentral RingEX
Skills-based, priority and AI routing, listen-whisper-barge, four outbound dialer types, more than 200 prebuilt reports with live dashboards, AI transcription, summaries and sentiment, an AI receptionist answering and booking around the clock, and SMS alongside voice are all on the record, with workforce management and quality scoring stated. The AI part is the usual fog: the pages speak of industry-recognized LLMs and point to a subprocessor list without naming a model, and I found no public information on in-queue callback or an AI opt-out.
CRM integration, API & administration
Aircall
250+ native integrations with HubSpot, Salesforce and Zendesk, CTI screen pops, automatic call logging, a documented REST API with webhooks and analytics endpoints, SAML single sign-on, SCIM, two-factor authentication and user roles cover most of what a company needs to administer. We found no public information on audit logs, bulk user import, multi-site or multi-company administration, reseller sub-customer accounts, or SIP trunking for an existing PBX — the captured pages instead describe an AI setup that works without SIP trunks.
RingCentral RingEX
Click-to-call, screen pop-ups and automatic call logging for Salesforce, Zendesk, Zoho and Dynamics are documented, and SCIM user provisioning comes with a real API reference down to endpoints and rate limits; single sign-on with enforced multi-factor authentication, custom roles, multi-site management, an audit trail and bulk user adds are all stated. No partner or reseller accounts are described, SAML is never named, and I found no public information on webhooks for call events or SIP trunks for a named PBX — bring-your-own-carrier appears only as a coverage option.
Reliability, call security & telecoms compliance
Aircall
A public status page with 90-day component history, 99.95% uptime stated, TLS/SRTP encryption, SOC 2 Type 2, regular third-party penetration tests and 24-hour breach notification are documented, and the subprocessor list names Twilio as providing voice transmission. But we found no public information on emergency calls from softphones or home offices or on toll-fraud spending limits; the captured pages mention an enterprise SLA without publishing credits, the status page itself states it forms no part of the terms of service, and the security programme is stated as aligned to ISO 27001 rather than certified against it.
RingCentral RingEX
The certification pile is genuinely deep — ISO 27001, 27017, 27018 and 22301 for both products, SOC 2 and SOC 3, the German C5 attestation, Cyber Essentials Plus and HITRUST — alongside a claimed 99.999 % availability with a record of nineteen quarters under 79 seconds of downtime, TLS/SRTP voice encryption and end-to-end encrypted calls in closed beta. What a bad day costs is not answered: I found no public information on a published SLA with credits, a public incident history, registration with the German regulator, or toll-fraud spending limits; the emergency policy is at least honest that calls fail in an internet outage and that a line taken to another country cannot reach that country's emergency services.
European sovereignty
Aircall
Aircall SAS of Paris is the contracting entity and the chain is unusually transparent: a published data processing agreement with standard contractual clauses, CNIL named for the SCCs, and a subprocessor list giving each processor's country. But the main storage locations include the United States, Australia and India, Twilio in the USA carries the voice, AssemblyAI and Deepgram in the USA generate transcriptions from call recordings, and the promise that all AI and conversation data sits in the EU is dated over the course of 2026 rather than evidenced today.
RingCentral RingEX
German customers sign with RingCentral Germany GmbH in Hamburg under German law with an Irish data protection officer, but the parent is RingCentral, Inc. of Belmont, California, and the privacy notice says information collected in the EEA and UK may be transferred to and stored on servers in the United States and Switzerland, with standard contractual clauses, the UK addendum and the Data Privacy Framework as the stated safeguards. A subprocessor list URL exists and the processing agreement points to it, yet the captured pages name no subprocessor, carrier, or AI model location, and I found no public information on EU hosting for call records, recordings or transcripts.
Pricing transparency
Aircall
Plans are public at 30 € and 50 € per licence per month plus an individual enterprise rate, add-ons carry real prices such as 49 € for AI Assist Pro, 15 € for Analytics+, 10 € for WhatsApp and 0,25 €/Min. pay-as-you-go voice agents, and the terms state a 25% annual-payment saving and a three-licence minimum with annual contract. We found no public information on what numbers, number blocks, porting, international minutes, set-up fees, VAT treatment or the notice period cost — the domestic inclusions are clear, the rest of the first invoice and the second year are not computable from the captured pages.
RingCentral RingEX
The captured pages give a single figure — unlimited minutes from 65 $ per user per month on the contact-centre page — while the German plan page details four tiers with 100, 500, 1000 or 2000 included minutes per user and their features but no per-plan price, and the terms state all prices in euros, exclusive of taxes, with a EUR 40 late fee per invoice and 30 days' notice of non-renewal. Porting is free, but I found no public information on number, toll-free bundle, device, per-minute or add-on prices; an outbound call rate list for Germany exists as a document whose figures were not on the captured pages.
Sovereignty, side by side
Dimension
Aircall
RingCentral RingEX
Legal entity
Not determined
Not determined
Hosting location
Not determined
Not determined
Hosting options
Not determined
Not determined
Open source
Not determined
Not determined
Data processing agreement
Not determined
Not determined
Transfer impact assessment
Not determined
Not determined
Facts, side by side
Only facts both products carry under the same definition — anything else would not be a fair row.
As of 6 Nov 2026, the panel rates both 3/5. Weighted by what each judge cares about, 1 of the 6 judges picks Aircall and 5 pick RingCentral RingEX. Which one fits depends on the criteria that matter to you; the table on this page shows both side by side, and each judge’s reading has its own page. Both were scored by the same AI bench under the same rubric, from public evidence only, as the methodology describes.
Is Aircall or RingCentral RingEX European?
Aircall is European (EU-Made). RingCentral RingEX is not European by provenance (Rest of world). Provenance is read from each company’s own legal pages: who builds it and who owns it.