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NDA-24305 CHAPTER 2
Page 5
Revision 1.0
GENERAL INFORMATION
3.2 BEARER CAPABILITY (BC) INFORMATION ELEMENT
The purpose of the Bearer Capability (BC) information element is to indicate a bearer service to be provided by
the network (ISDN). It contains only information which may be used by the network.
The Bearer Capability information element is used for compatibility checking in the connection as well as Low
Layer (LLC)/High Layer (HLC) Capability.
The following shows the relation between a terminal and BC.
Kind of Terminal BC
Analog single line telephone Speech
Digital telephone (D
term
) Speech
G3 (Group 3) Fax 3.1 kHz audio
Modem 3.1 kHz audio
DTE via Data Module/Adaptor Unrestricted digital
G4 (Group 4) Fax Unrestricted digital