Gerard,

One correction regarding the info of Ed,

>In all cases, we're talking raw data rates; a B channel with framing and other overhead provides about a 56Kbit data channel; two B channels can be combined to yield about 112Kbps.)

In europe we have several standards. The most common standards (I forgot the name) is that we can use 64Kbit B-channels in stead of 56K. The two B-channels can be conbined to 128 Kbit.

Walter,