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8. Application Guidelines
357
Type of IE Value Codeset
DEF 0x77 7
Assumption 4: User-supplied IEs (with the exception of CHANNEL_ID_IE, see
below) take precedence over the Firmware-defined IEs, even those that are in
private IE parts.
Assumption 5: The CHANNEL_ID_IE will always be taken from the Firmware-
defined section.
Assumption 6: When Single Byte IEs and NON-LOCKING Shift IEs occur in
both the User-supplied and Firmware-defined sections, the value will be taken
from the User-defined section, but it will be inserted at the position defined by the
firmware, assuming that there may be specific requirements on the firmware to
have the position.
For more information on setting IEs, see the cc_SetInfoElem( ) function
description.
8.4. Programming Considerations - BRI/SC Only
This section provides the following information, which pertains only to BRI/SC
protocols:
• BRI/SC Configuration
• BRI/SC Terminal Initialization
• BRI/SC Tone Generation Configuration
8.4.1. BRI/SC Configuration
Unlike the PRI firmware, the BRI firmware requires the application to first
configure the desired protocol and features via the cc_SetDChanCfg( ) function.
This is necessary for BRI/SC protocols as there is only one BRI firmware file
containing multiple protocols and the firmware needs to know which protocol is to
be configured. The protocol also needs to know whether the station is to be
configured as a Network side or User side station.