UK-headquartered speech to text specialist Spinvox has signed a deal with Spanish carrier Telefónica that will see its text voicemail service made available to Telefónica’s entire Latin American customer base. The carrier has almost 125 million customers in the region.

Last October Spinvox inked its first Latin American deal with Telefonica’s Chilean operation. This latest announcement extends its service to the carrier’s properties in Argentina, Columbia, Ecuador, El Salvador, Guatemala, Mexico, Nicaragua, Panama, Peru, Uruguay as well as Vivo, the Brazilian operation Telefónica owns jointly with Portugal Telecom.

The deal gives a massive boost to the number of mobile subscribers to whom Spinvox services are available, with the firm now forecasting 150 million users by the end of this year. Currently 30 million people use Spinvox, and a spokesperson said the firm has signed more deals that have yet to be announced. Clearly, though, Spinvox anticipates huge take-up from Telefónica’s Latin American subscriber base.