Teleglobe's charges are substantially higher than for long-distance calls of equivalent length over the North American telecommunications grid, where competition and choice exist, or for overseas telecommunication calls that are routed via the United States, where competition and choice also exist.

Based on that paragraph can we conclude that this sentence is true?
Customers of United States telecommunication companys pay less than customers of Teleglobe.

Available options:
[I] Yes.
[II] It's impossible to say.
[III] No.
[I]