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I got my hands on a large number of these boards (Verifone multiport switch). Are these considered Telecom High? Thanks.

unfortunately no. They are toward the lower end of high peripheral as long as a majority of the connectors are gold plated. Standard telephone and network connections are gold plated, so I think that you are covered there. Some would argue low peripheral, due to low chip density, but I do see some quality components and not much actual junk.