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Glossary

Telecoms terms and abbreviations can be a little confusing, even for the most experienced engineers. Here’s a short glossary of some of the terms we use.

B

BCD
Binary Coded Decimal
BCD uses four bits to represent digits
BCI
Backward Call Indicators
BCLID
Bulk Calling Line Identification
BER
Basic Encoding Rules
BRA
Basic Rate Access ISDN
The provision of an ISDN service through 1.44kbits/s access
BSN
Backward Sequence Number