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 IT Administrator
IT administrator at a machine builder with 280 staff on three sites in Baden-Württemberg, with production halls on DECT handsets, the office on Microsoft Teams and a service team abroad. Wants desk and DECT phones provisioned without touching each one, Teams calling with the company numbers, users created from Entra ID with single sign-on, an API for the number plan, and an emergency call from a home office that reaches the right control centre.
Aircall
RingCentral RingEX
This judge's pick
Criterion by criterion
Calling, numbers & call routing
Aircall
Numbers in over 100 countries, porting of existing numbers, IVR, queues, ring groups grouped by skill, time-based routing by working hours, voicemail, call recording with pause and resume, queue callback and three-digit extensions are all documented. We found no public information on emergency calls with a registered location, number blocks, fax, call park or busy lamp fields, and the porting timelines are not described. For a company where a home-office emergency call must reach the right control centre, that silence decides the level.
RingCentral RingEX
The drag-and-drop call menu builder, queues with configurable ring order, business-hours and holiday answering rules, voicemail-to-email transcription, fax on the same number and free porting within one to two weeks cover what my three sites need, and emergency calling is documented down to the registered address and the German local-area-code rules. We found no public information on number blocks, call park or busy lamp fields.
Apps, desk phones & Microsoft Teams
Aircall
Desktop, browser and iOS/Android apps with presence, business calls on the mobile without exposing the private number, GSM fallback and a Microsoft Teams integration with presence sync and contact sharing are documented. We found no public information on DECT handsets, desk phones from named makers with automatic provisioning, Teams calling via Direct Routing or Operator Connect, or devices for sale or rent. For three sites with production halls on DECT handsets, that is the part I cannot plan with.
RingCentral RingEX
Desktop, mobile and browser apps with presence and device switching are documented, and the Teams integration is deep: embedded app, Direct Routing, telephony without a Teams Phone licence and a heads-up display inside Teams. The only device provisioning I found is a manual article for Yealink desk phones through the device web interface with default admin credentials, and we found no public information on DECT handsets or an auto-provisioning device list, which matters for my production halls.
Call centre, analytics & AI
Aircall
Queues with callback, a live availability feed, live and historical dashboards, per-agent statistics, missed-call lists assignable from the mobile, whispering, a Power Dialer and outbound campaigns are documented, plus AI summaries and transcription in 38 languages, an AI receptionist and SMS and WhatsApp beside calls. We found no public information on barge-in, sentiment analysis, wrap-up time or scheduled report exports. For our service team abroad this is a serious contact-centre stack even before the AI extras.
RingCentral RingEX
Skills, priority, talk-time and overflow routing, whisper and barge, preview, progressive, predictive and voice-broadcast dialers, more than 250 reports with real-time dashboards, an AI receptionist that switches language mid-call, plus transcription, sentiment and AI quality scoring across every interaction are documented end to end. We found no public information on callback in queue or wrap-up time.
CRM integration, API & administration
Aircall
Over 250 native integrations including HubSpot, Salesforce, Zendesk and Pipedrive with click-to-dial, CTI screen pops and automatic call logging, a documented REST API with webhooks across numbers, users, contacts and call journeys, SAML single sign-on, SCIM on the Enterprise plan, two-factor authentication and user roles are documented. We found no public information on bulk user import, product-side audit logs, multi-site administration, SIP trunks or reseller accounts with sub-customers. For provisioning users from Entra ID and driving the number plan by API this covers the essentials but not the whole fleet.
RingCentral RingEX
Single sign-on on the Premium plan with enforced multi-factor, SCIM provisioning with full user create, update and delete endpoints, SDKs in eleven languages, click-to-call with screen pop-ups and automatic call logging into Salesforce, Zoho and Dynamics, custom roles, multi-site management and an audit trail cover most of my Entra ID wish list. We found no public information on webhooks for call events, reseller accounts or a dedicated number-plan API beyond the general voice APIs, and bulk user creation is documented at only 25 users per batch.
Reliability, call security & telecoms compliance
Aircall
A stated uptime of 99.95 percent, a public status page with 90-day component uptime and incident updates, TLS and SRTP for voice with AES-256 at rest, SOC 2 Type 2, regular penetration tests and a published data processing agreement with 24-hour breach notification are documented. Telecom-service-provider obligations are acknowledged and Twilio is named for voice transmission, but no registration with the Bundesnetzagentur is stated, the SLA is named without published credits, and we found no public information on emergency calls from home offices, toll-fraud spending limits or the secrecy of telecommunications.
RingCentral RingEX
99.999 percent availability with a published record of nineteen quarters under 79 seconds of downtime, TLS and SRTP, ISO 27001, ISO 22301 and C5 attestations for RingEX, and an emergency policy detailed enough to show German area-code routing and per-line address registration give me something to show an auditor. We found no public information on an SLA with credits, a public incident history, Bundesnetzagentur registration or toll-fraud spending limits, and the policy itself states a line used abroad cannot reach that country's emergency services.
European sovereignty
Aircall
The contracting entity is Aircall SAS in Paris with a published data processing agreement and a subprocessor list naming countries: voice transmission via Twilio (USA), transcription via AssemblyAI and Deepgram (USA) and AI inputs via Cartesia and ElevenLabs (USA), with EU standard contractual clauses as the transfer safeguard. The captured pages give different pictures of where call data sits — one states transcripts and recordings are stored in the EU, another lists the United States, Europe and Australia as storage locations with transfers to India — and regional hosting is offered while EU processing of AI data is stated to expand during 2026.
RingCentral RingEX
German customers contract with RingCentral Germany GmbH in Hamburg under German law, and a data processing agreement with Standard Contractual Clauses, a published subprocessor list and a trust portal with certifications exist. The privacy notice states that data collected in the EEA may be transferred to and stored on servers in the United States and Switzerland, and we found no public information on EU hosting or the locations of the subprocessors, including the LLM partners.
Pricing transparency
Aircall
Essentials at 30 € per licence and month, Professional at 50 €, add-ons such as Analytics+ at 15 €, WhatsApp at 10 € and AI Assist Pro at 49 €, a 25 percent annual discount, a three-licence minimum and annual contracts with monthly invoicing are public. Numbers, porting, international minutes, devices, set-up fees, VAT treatment and the notice period carry no prices on the captured pages, and Enterprise is an individual tariff. I cannot compute our real annual cost for 280 people across three sites from this alone.
RingCentral RingEX
The captured pages give different figures: the German plan page lists plans with 100 to 2000 included minutes per user in euros for Germany, while the contact-centre page quotes unlimited minutes at a monthly price "ab nur 65 $ pro Benutzer:in" in US dollars; porting is stated as free and prices are stated exclusive of taxes. We found no public information on per-plan euro prices, device prices, set-up fees or the minimum term, though an outbound call rate document for Germany is listed among the legal 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.