EU Sovereignty Score
Non-EU vendorTelephony & VoIPHeadquarters: US

Vonage Business Communications: sovereignty score and 8 European alternatives

Vonage Business Communications is the business cloud communications offering from Vonage. It includes unified communications platforms that combine video conferencing, voicemail transcription and desktop sharing, along with contact centre applications and integrations with CRM tools and other business applications. Vonage also sells communications APIs, but these are a separate product. The business offering is delivered as a cloud service.

Vonage Holdings is headquartered in Holmdel Township, New Jersey, in the United States, and has been a subsidiary of the Swedish company Ericsson since July 2022; the Vonage name has been kept. This places the company under US jurisdiction even though its owner is based in the EU. The software is not open source. The pages consulted do not say where calls, voicemail and metadata are stored; ask Vonage for this and record it in your data processing agreement.

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Sovereignty score
27 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-210
    Headquartered in the US: CLOUD Act and FISA 702
  • Data residency SOV-350
    Hosting inside and outside Europe (EU, OTHER)
  • Cryptographic key sovereignty SOV-320
    Key management with a non-European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-615
    Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 5, 2026
Headquarters
US (US)Verified by hand
Ultimate parent company
SEVerified by hand
EU adequacy decision
Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty model
Vendor-hosted (non-EU)Verified by hand
Data hosting
EU, OTHERVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
Telephony & VoIP
Type
Product
Website
vonage.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Vonage Business Communications

The European alternatives to Vonage Business Communications come from our knowledge base of over 8,000 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

75 European Telephony & VoIP vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Vonage Business Communications

Vonage Business Communications is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model. The ultimate owner is based in SE, also within Europe.

Vonage Business Communications hosts data in EU, OTHER. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

Vonage Business Communications is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Vonage Business Communications together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Vonage Business Communications?

It depends on your use case. Strong EU alternatives to Vonage Business Communications include A1 Telekom Austria, Acrobits and Adversus. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Vonage Business Communications?

Our list of EU alternatives to Vonage Business Communications is mostly commercial options. Browse the category on the map for open-source choices.

Is Vonage Business Communications GDPR-compliant and where is the data hosted?

Vonage Business Communications is headquartered in US and hosts data in EU, OTHER. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 5, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

Digital sovereignty in Telephony & VoIP

Telephony & VoIP: Business telephony, VoIP platforms, CPaaS and communication APIs. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

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8 European alternatives to Vonage Business Communications — GDPR-compliant & EU-hosted · EU Sovereignty Score