This topic presents the ISUP configuration file parameters:
The general parameters control the overall operation of the ISUP layer process.
Note: All ISUP timer values are in seconds.
Parameter |
Default |
Valid values |
Description |
MAX_SAPS |
1 |
1 |
Maximum number of user applications. |
MAX_NSAPS |
1 |
1 through 255 |
Maximum number of interfaces with the MTP 3 network layer. |
MAX_GROUPS |
32 |
0 through 65535 |
Maximum number of circuit groups managed by the ISUP layer. |
MAX_ROUTES |
16 |
0 through 65535 |
Maximum number of routes. |
MAX_CIRCUITS |
96 |
0 through 65535 |
Maximum number of circuits to be managed by the ISUP layer. |
MAX_CALLREFS |
16 |
0 through 65535 |
Maximum number of call references (connections) that ISUP can keep track of simultaneously. |
OPC |
None |
N/A |
Point code of this node, specified as x.y.z (three bytes, decimal value, separated by periods), as a hexadecimal value preceded by 0x (0x123), or as a decimal value. |
PC_FORMAT |
DEFAULT |
DFLT INTL JNTT |
Point code format. DFLT = Point codes are interpreted and displayed as 24-bit 8.8.8 values. INTL = Point codes are interpreted and displayed as 14-bit 3.8.3 values. JNTT = Use for both Japan NTT and TTC networks. Point codes are interpreted and displayed as 16-bit mcode.scode.ucode values with the U-code in the most significant 7 bits, the S-code in the next 4 bits, and the M-code in the least significant 5 bits. |
CLLINAME |
None |
N/A |
Common language location identifier (CLLI) name assigned to this node (exactly 11 ASCII characters). |
T18_TIMER |
12 |
0 through 65535 |
Time to wait for a response to a group blocking message that was sent. |
T19_TIMER |
60 |
0 through 65535 |
Time to wait for a response to an initial group blocking message that was sent. |
T20_TIMER |
12 |
0 through 65535 |
Time to wait for a response to a group unblocking message that was sent. |
T21_TIMER |
60 |
0 through 65535 |
Time to wait for a response to an initial group unblocking message that was sent. |
T22_TIMER |
12 |
0 through 65535 |
Time to wait for a response to a circuit group reset message that was sent. |
T23_TIMER |
60 |
0 through 65535 |
Time to wait for a response to an initial circuit group reset message that was sent. |
T28_TIMER |
10 |
0 through 65535 |
Time to wait for a CQR after sending a CQM. |
TGRES_TIMER |
5 |
0 through 65535 |
Group reset timer. |
TFGR_TIMER |
5 |
0 through 65535 |
ANSI first group received timer. |
TRACE_EVENT |
FALSE |
TRUE FALSE |
If TRUE, enables event logging. |
TRACE_DATA |
FALSE |
TRUE FALSE |
If TRUE, enables data tracing. |
TRACE_WARNING |
FALSE |
TRUE FALSE |
If TRUE, enables logging of unexpected information element value warnings. |
TRACE_ERROR |
FALSE |
TRUE FALSE |
If TRUE, enables logging of message encoding errors. |
IG_PASS_ALNG |
FALSE |
TRUE FALSE |
If TRUE, messages are sent in pass-along format. |
ITU_UCICS |
FALSE |
TRUE FALSE |
If TRUE, enables an ITU configuration to send UCIC messages. If FALSE, UCICs are not sent. |
EXT_ELMTS |
FALSE |
TRUE FALSE |
If TRUE, enables the sending and receiving of extended elements. |
RAW_MSGS |
FALSE |
TRUE FALSE |
If TRUE, enables the sending and receiving of raw messages. |
ONE_GRPMSG |
FALSE |
TRUE FALSE |
If TRUE, the stack reacts to the first CGB and GRS group message (ANSI only). |
QCONGONSET1 |
600 |
0 through 65535 |
Queue to the host application congestion level 1 onset. |
QCONGABATE1 |
400 |
0 through 65535 |
Queue to the host application congestion level 1 abatement threshold. |
QCONGONSET2 |
900 |
0 through 65535 |
Queue to the host application congestion level 2 onset. |
QCONGABATE2 |
700 |
0 through 65535 |
Queue to the host application congestion level 2 abatement threshold. |
QCONGONSET3 |
1200 |
0 through 65535 |
Queue to the host application congestion level 3 onset. |
QCONGABATE3 |
1000 |
0 through 65535 |
Queue to the host application congestion level 3 abatement threshold. |
MCONGONSET1 |
20 |
0 through 65535 |
TX percentage of memory remaining congestion level 1 onset. |
MCONGABATE1 |
25 |
0 through 65535 |
TX percentage of memory remaining congestion level 1 abatement threshold. |
MCONGONSET2 |
10 |
0 through 65535 |
TX percentage of memory remaining congestion level 2 onset. |
MCONGABATE2 |
15 |
0 through 65535 |
TX percentage of memory remaining congestion level 2 abatement threshold. |
MCONGONSET3 |
5 |
0 through 65535 |
TX percentage of memory remaining congestion level 3 onset. |
MCONGABATE3 |
8 |
0 through 65535 |
TX percentage of memory remaining congestion level 3 abatement threshold. |
RMTUSRUNAVL |
FALSE |
TRUE FALSE |
If TRUE, configures the stack to start in remote user unavailable mode. |
GRPRESETEVENT |
FALSE |
TRUE FALSE |
If TRUE, configures the stack to send up one group reset event instead of many separate circuit reset events. |
SLSFROMCICS |
TRUE |
TRUE FALSE |
If TRUE, sets the ANSI SLS value to the bottom bits of the CIC. |
DSBLRMTUSRUNAVL |
FALSE |
TRUE FALSE |
If TRUE, disables appropriate user part test procedure (for SSURN among others). |
RESTARTT7 |
FALSE |
TRUE FALSE |
If TRUE, restarts T7 when an inbound INR is received (for SSURN among others). |
DISABLEACL |
FALSE |
TRUE FALSE |
If TRUE, disables automatic congestion control (for SSURN among others). |
END |
N/A |
N/A |
Marks the end of the general section. This parameter is required. |
The service access point (SAP) parameters define the characteristics of the ISUP layer presented to the user applications.
Note: The ISUP layer software allows for configuration of only a single ISUP user SAP. Therefore, only one application can use the ISUP layer at a time. Timer default values in parentheses are ITU values.
Parameter |
Default |
Valid values |
Description |
USER_SAP |
None |
0 through MAX_SAPS |
SAP number |
SWITCH_TYPE |
ANSI92 |
ITU ITUWHITE ITUBLUE ITU97 ETSIV2 ETSIV3 Q767 ANSI88 ANSI92 ANSI95 JNTT |
Protocol variant employed for this application. Must match one of the switch types defined in the NSAP definition section. For Japan TTC, use JNTT and the Global Messaging Toolkit. |
MASK |
None |
N/A |
Routing mask for circuit selection by ISUP. Maximum of 20 ASCII characters where a 1 indicates the digit is significant for route matching and a 0 indicates the digit is ignored for route matching. For example, 1110000000 causes ISUP to treat the first three digits of a called address as significant when route matching. |
MAX_USER2USER |
20 |
0 through 0xff |
Maximum length of user-to-user information in an IAM. |
T1_TIMER |
12 (15) |
0 through 65535 |
Time to wait for a response to a release message sent. |
T2_TIMER |
0 |
0 through 65535 |
Time to wait for a resume message after a suspend message received. |
T5_TIMER |
60 (300) |
0 through 65535 |
Time to wait for a response to initial release message sent. |
T6_TIMER |
30 |
0 through 65535 |
Time to wait for a resume message after a suspend (network) message received. |
T7_TIMER |
25 |
0 through 65535 |
Time to wait for a response (for example, ACM, ANS, or CON) to the latest address message sent. |
T8_TIMER |
12 |
0 through 65535 |
Time to wait for a continuity message after receiving IAM requiring continuity check. |
T9_TIMER |
180 |
0 through 65535 |
Time to wait for answer of outgoing call after ACM message received. |
T16_TIMER |
12 |
0 through 65535 |
Time to wait for a response to a reset message sent. |
T17_TIMER |
12 (300) |
0 through 65535 |
Time to wait for a response to initial reset message sent. |
T27_TIMER |
240 |
0 through 65535 |
Time to wait for a continuity check request after ensuing continuity check failure indication is received. See the TCCR_TIMER field. |
T31_TIMER |
0 (disabled) |
0 through 65535 |
Time to wait before reusing call reference after a connection is cleared. |
T33_TIMER |
15 |
0 through 65535 |
Time to wait for a response to information request message sent. |
TEX_TIMER |
0 (disabled) |
0 through 65535 |
Time to wait before sending ANSI exit message. |
TCRM_TIMER |
4 |
0 through 65535 |
Time to wait for a response to a circuit reservation message sent. |
TCRA_TIMER |
10 |
0 through 65535 |
Time to wait for an IAM message after circuit reservation acknowledgment message sent. |
TCCR_TIMER |
20 (240) |
0 through 65535 |
Time to wait for CCR after the first COT indicating failure. See the T27_TIMER field. |
END |
N/A |
N/A |
Marks the end of the SAP section. This parameter is required. |
The NSAP parameters define the characteristics of the ISUP interface to the MTP 3 layer:
Parameter |
Default |
Valid values |
Description |
NSAP |
None |
1 through 32 |
Name of the NSAP section for the rest of the parameters. |
SWITCH_TYPE |
ANSI92 |
ITU ITUWHITE ITUBLUE ITU97 ETSIV2 ETSIV3 Q767 ANSI88 ANSI92 ANSI95 JNTT |
Protocol variant employed for this MTP interface. Must match one of the switch types defined in the MTP 3 NSAP definition section. For Japan TTC, use JNTT and the Global Messaging Toolkit. |
SSF |
NATIONAL |
NATIONAL INTERNATIONAL 0 through 3 RESERVED SPARE |
Value used in the subservice field (SSF) of the service information octet in outgoing ISUP messages on this MTP interface. |
MTP_SAP |
0 |
0 through 255 |
MTP service access point to which to bind ISUP. Must match one of the NSAP numbers defined in the MTP configuration file; must be unique among all user parts that use MTP (SCCP, TUP). |
END |
N/A |
N/A |
Marks the end of the NSAP section. This parameter is required. |
The circuit group parameters specify the characteristics of each of the circuit groups to be managed by the ISUP layer. One entry is made for each circuit group.
Note: Timer default values in parentheses are ITU values.
Parameter |
Default |
Valid values |
Description |
CIRCUIT |
None |
1 through |
Number of the first circuit in this group. Circuits in this group are numbered from this value to (value + NUM_CIRCUITS - 1). This range must be unique for all circuits defined. This value is used by the application and the ISUP layer to identify circuits, but has no meaning to the far exchange. |
CIC |
1 |
0 through 4095 |
Circuit identification code (CIC) of the first circuit in this group. Circuits in this group are assigned CICs from this value to (value + NUM_CIRCUITS - 1). The number range must agree with the CICs assigned to this circuit group at the far exchange. |
DPC |
None |
N/A |
Destination point code to which this circuit group connects. |
ALT_OPC |
0 |
N/A |
Originating Point code for this set of circuits. If not present, the OPC is set to OPC from the NSAP. This needs to be used carefully with the appropriate MTP configuration changes. |
CIRCUIT_TYPE |
INCOMING |
INCOMING OUTGOING BOTHWAY |
Direction of calls allowed on this circuit group. |
CONTROL_TYPE |
NONE |
NONE ALL ODD_EVEN |
Dual seizure control. |
GROUP_CHARS |
0 |
0 through 0xff |
When non-zero, this value is placed in the group characteristics of the CVR message. |
SWITCH_TYPE |
ANSI92 |
ITU ITUWHITE ITUBLUE ITU97 ETSIV2 ETSIV3 Q767 ANSI88 ANSI92 ANSI95 JNTT |
Protocol variant employed for this application. Must match one of the switch types defined in the NSAP definition section. For Japan TTC, use JNTT and the Global Messaging Toolkit. |
SSF |
0xff (NSAP) |
NATIONAL INTERNATIONAL 0 through 3 RESERVED SPARE 0xff |
NSAP value is the default; however, putting a value in this field overrides the default. |
NUM_CIRCUITS |
1 |
1 through 4095 |
Number of circuits in this circuit group. |
T4_TIMER |
0 |
0 through 65535 |
Time to wait for call modification complete message. |
T12_TIMER |
12 (15) |
0 through 65535 |
Time to wait for response to blocking message. |
T13_TIMER |
60 (300) |
0 through 65535 |
Time to wait for a response to the initial blocking message sent. |
T14_TIMER |
12 (15) |
0 through 65535 |
Time to wait for a response to an unblocking message sent. |
T15_TIMER |
60 (300) |
0 through 65535 |
Time to wait for a response to the initial unblocking message sent. |
TVAL_TIMER |
30 |
0 through 65535 |
ANSI circuit validation timer. |
TPAUSE_TIMER |
2 |
0 through 65535 |
Time to wait after MTP pause before resetting circuits. |
END |
N/A |
N/A |
Marks the end of this circuit group definition. This parameter is required. |