
APPENDIX
Protocol Data Mode
116
2.10
•
19.01.2007
5.1.9.2 ConnectInd
Command
Direction: Module -> Host
Inform the host that the HW 86012/22 has established a call to a PT with the indicated IPUI.
The information field has a size of 13 bytes. It is structured as follows:
LAP Information field
CMD
Handle
IPUI-Type
IPUI-Len
IPUI-Data
Call-Nr
CMD:
This 1-byte data field identifies the type of call control command. For a ConnectInd
command CMD = 0x01.
Handle:
Bit 0 to 6 of this 1-byte data field contain the call handle of the newly established
call. Bit 7 is always 0.
IPUI-Type:
This 1-byte data field indicates the type of IPUI-Data. The value 0x00 indicates
IPUI type N (see EN 300 175 part 6). This is the only IPUI type supported by the firmware.
All other values are reserved for future use.
IPUI-Len:
This 1-byte data field contains the number of valid bits in the IPUI-Data field. In
the current implementation always set to 0x28=40.
IPUI-Data:
This 8-bytes data field contains the IPUI. Bit 7 of the first byte is the first bit of the
IPUI. Unused bits are set to 0.
CalI-Nr:
Bit 0 to 6 of this 1-byte data field contain the call number of PT. Bit 7 = 1 means a
new call, bit 7 = 0 means a recall after having lost the connection.