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- TELESP BIS.

BIS is the abreviation of Interactive Services Banking , and basicaly is a TELESP Service dedicated to secure financial transactions.

TELESP is the largest PTT Operator in BRAZIL.Their Services are mainly for the Sao Paulo state area.The Data Network team of TELESP are composed by high qualifications professionals with large experience and knowledge. The main 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. Due to the need of confidentiality , and Non-Disclosure agreements with partners , I can't describe the network archictecture here. But I Could tell you that is quite secure and includes a full set of Caller Telephone number (CALL ID) identification and overall data encoding and criptography. You Could use it with Confidence.

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