ISUP CRCS Configuration Bytes (ITU)
Bytes 1–5 define the format of the COT message. These should not be changed.
|
Byte |
Description |
Value |
|---|---|---|
|
0x01 |
Information Length |
0x04 |
|
0x02 |
Message ID |
0x05 (COT) |
|
0x03 |
Parameter Count |
0x01 |
|
0x04 |
Parameter1 ID |
0x10 (Continuity Indicator) |
|
0x05 |
Parameter 1 Data Length |
0x00 |
|
0x06–0x09 |
Not Used |
|
|
0x0A |
Continuity Recheck |
0x00=Enables unlimited repeated continuity checks 0x01= Limits the repeated continuity checks to n+2 times where N is the value of config byte 0x0B. (default) |
|
0x0B |
Number of times to recheck |
2 (default) |
|
Release (REL) when COT successful |
||
|
0x14 |
Information Length |
0x06 |
|
0x15 |
Message ID |
0x0C (REL) |
|
0x16 |
Number of Parameters |
0x01 |
|
0x17 |
Parameter 1 Data Type |
0x12 (Cause Indicators) |
|
0x18 |
Parameter 1 Data Length |
0x02 (Cause Indicators) |
|
0x19 |
Parameter 1 Data[0] |
0x80 (Location=User) |
|
0x1A |
Parameter 1 Data[1] |
0x90 (Cause 16=Normal Call Clearing) |
|
Release (REL) if RLC is not received |
||
|
0x1E |
Information Length |
0x06 |
|
0x1F |
Message ID |
0x0C (REL) |
|
0x20 |
Number of Parameters |
0x01 |
|
0x21 |
Parameter 1 Data Type |
0x12 (Cause Indicators) |
|
0x22 |
Parameter 1 Data Length |
0x02 (Cause Indicators) |
|
0x23 |
Parameter 2 Data [0] |
0x80 (Location=User) |
|
0x24 |
Parameter 1 Data[1] |
0xE6 (Cause 102; Recovery on timer expiry) |