ocr: Not 1st end-to-end 2nd end-to-end 3rd end-to-end Not System R2 signalling section signalling section signalling section System R2 T T CCITT-49240 Outgoing Outgoing Incoming R2 register R2 register R2 register I =outgoing international R2 register T = incoming R2 register in a transit exchange FIGURE 11/Q.440 An international three-section multi-link connection
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