>> Yes and no. If the T1 is channelized, then yes. If it's a PRI >> circuit, then it has only 23 channels to carry voice, as the 24th >> channel is used for the D-channel (signalling channel). > > Only if you're in the US. We have 30 + 1 :-) E1 == 2048kbps == 32 channels, giving 30 B + 1 D + 1 for timing roy