Layer 1 & Layer 2 Protocols • 7-11 •
The H.110 Basic Rate ISDN Board
offset bytes description
1400h 04h length
1401h 00h high order byte of length
1402h 08h Q.931 message
1403h 01h call reference length of 1
1404h 81h call reference of 1
1405h 07h CONNect message type
To send this message with a DLCI of (0,64) on port 3, the command
“LC030040” would then be placed in the main transmit mailbox and the
transmit flag would then be set to 01h. Receiving a message is the mirror
image of this process.
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