Aviva is an SMS/Email operator providing value-added services since 2005. In Dic 2023 Aviva joined with TSS, which is part of the ecosystem of Constellation Software Inc (CSI). Aviva obtained the mandatory licensees of the Spanish Telco Regulatory Body "CNMC" (Comisión Nacional de los Mercados y la Competencia) to offer services as a telecom operator for the SMS and Email services.Aviva's main activities are:-Massive sending of SMS and Email for marketing campaigns.-Trusted Third Party services for: +Electronic notification: Registered SMS and Email keeping documentary evidence of sending and receiving +Electronic signature: for distance contracts signature +Electronic document delivery: keeping records of the sending and the delivering