You are here: CSP Developer’s Guide: Common Channel Signaling > 7 SS7 PPL Information > ISUP CRCS (0x0081)
Purpose
This section includes (ITU only) PPL Config Bytes, all PPL Events, and Timer information for the PPL Component ISUP CRCS.
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=Disable 0x01=Enable (default) |
|
0x0B |
Number of times to recheck |
2 (default) |
ISUP CRCS PPL Event Indications (ITU)
|
Event ID |
Event |
|---|---|
|
0x01 |
T36 expiry on Continuity Recheck |
|
0x02 |
COT failure indication (dual seizure), process network IAM |
|
0x03 |
T5 expiry in waiting for RLC state |
|
0x04 |
CPC Not IDLE Indication |
|
0x05 |
Release complete received from network |
|
0x06 |
COT success indication |
ISUP CRCS PPL Timers (ITU)
|
Timer ID |
Timer |
Default Value (10ms) |
|---|---|---|
|
0x01 |
1500 |
|
|
0x05 |
T5 |
30000 |
|
0x18 |
T24 |
200 |
|
0x19 |
T25 |
1000 |
|
0x1A |
T26 |
18000 |