Bernie,
As I recall it, R2 signaling is used only in Europe and South America and is on the way of the Dodo bird. The designation R2 is a CCITT, now ITU, designation and I believe it is in an ITU Recommendation. I know it is used in Mexico at the moment by Telmex. Am having lunch today with a Mexican gentleman and will check with him. Ciao, Vic Boersma
