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- TELESP VIDEOTEXT BANKING.

TELESP is the Largest PTT Operator in BRAZIL. Their services are mainly in the Sao Paulo state.
The Videotext Banking Network is basicaly a Network for TELESP Services dedicated to home banking infrastructure.
The Videotext Team of TELESP are composed by people with large experience and knowledge.
The technical requirement for this network was the ability to exchange R2 Digital protocol with Public Switched Telephony Network , compliant with CCITT G.703 and G.704 standard. The basical interconnections with the PSTN (Public Switching Telephony Network) was developed by my group together with PARTNERS.

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