I thought primary rate interfaces were 24 channels (23 bearer channels plus one data channel) for a total throughput rate of 1.5 Mb/s, but apparently that’s onl

I thought primary rate interfaces were 24 channels (23 bearer channels plus one data channel) for a total throughput rate of 1.5 Mb/s, but apparently that’s only the case in the US, Canada, and Japan. European PRIs (E1 vs T1) are as you described. TIL.