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cc_SndNonCallMsg( ) sends a non-call related ISDN message
264
Name:
int cc_SndNonCallMsg(boarddev, crn_type, msg_type,
sndmsgptr)
Inputs:
LINEDEV boarddev
• board device
int crn_type
• ISDN call reference
number type
int msg_type
• ISDN message type
NONCRN_BLK *sndmsgptr
• pointer to the message
block containing non-call
related ISDN message
data
Returns:
0 on success
< 0 on failure
Includes:
cclib.h
Category:
Optional call handling
Mode:
synchronous
Technology:
BRI/2; BRI/SC; PRI (all protocols)
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Description
The cc_SndNonCallMsg( ) function sends a non-call related ISDN message to
the network over the D channel. The cc_SndNonCallMsg( ) function specifies the
ISDN CRN type as either:
• GLOBAL CRN - pertaining to all calls or channels on a trunk
• NULL CRN - not related to any particular call
Unlike the cc_SndMsg( ) function, the cc_SndNonCallMsg( ) function does not
require a call reference number (CRN) to transmit the outgoing message.