Vonage SMS is Vonage's SMS API. Through REST APIs you send and receive text messages worldwide, including on local numbers, with delivery receipts, Unicode support, sender IDs, SDKs and a feature that automatically redacts message content. Vonage also offers other communication APIs, covering RCS, WhatsApp, email, voice, video and verification (2FA). The service is delivered as a cloud service and is aimed at developers and businesses that want to build messaging into their own applications.
Vonage Holdings is a US company headquartered in Holmdel, New Jersey. Since July 2022 it has been a wholly owned subsidiary of the Swedish company Ericsson. The service is not open source. As a US legal entity, Vonage falls under US jurisdiction even though its parent company is in Sweden. The sources consulted do not document hosting regions for the SMS service. European organisations that require data processing within the EU should ask Vonage which regional options exist for SMS.