ocr: (see Note 1) AH PSPDN IWFH PH) ISDN TAH B X.31 X.25 terminal X.25 terminal E.164 number X.121 number Cd:0+E.164 - (B)CRP Cg: X.121 (A) CRP Cd: E.164 (B) CRP (Note 2) Cg: 0 +X.121 (A)CRP (Note 2) Cg:0+X.121 (A) ) CRP Cd: X.121 (A) CRP Cg: E.164 (B)CRP TO701396-08 Cg:0+E.164 (B)CRP Note 1 - In some implementations the PH functions logically belonging to the ISDN may reside in a node of PSPDN (see Recommendation X.31 8 5.2) Note 2 -- The use of the Escape Code 0 in this instance is explained in E.166. Note 3 - The use of a DNIC to identify an ISDN may be used as an alternative to the above scenar ...
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