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Welltech Dialogic SS7 Protocols ISUP User Manual

Page 181

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SS7 Protocols ISUP Programmer's Manual Issue 15

181

• If the value of the OPC is greater than the DPC, priority (or control)

should be given to EVEN cics by setting bits 0-1 of the options field in
the ISP_MSG_CNF_GRP message to 2.

• If the value of the OPC is lower than the DPC, priority (or control)

should be given to ODD cics by setting bits 0-1 of the options field in

the ISP_MSG_CNF_GRP message to 3.

• The module can support both ISUP and BICC groups at the same time

under the following conditions:

• Groups configured for BICC and ISUP must differentiate by at least the

following parameters: OPC, DPC, or SIO. The module does not

support BICC and ISUP groups with the same OPC, DPC and SIO.

• BICC and ISUP use different timers and timer values. Hence, groups

configured for BICC must be configured to use different timer tables
to those groups configured for ISUP. The tim_tab_id field in the

ISP_MSG_CNF_GRP message must be set accordingly.

• Segmented Application Transport data:

• The ISPX1GOP_REASS field in the ISP_MSG_CNF_GRP message may

optionally be enabled if the syntax of segmented application context
parameters must be validated and if timer Treass (to wait for the final

APP segment) should be initiated.

• Timer TIM_REASS in the ISP_MSG_CNF_TIM (0x7702) message is used

by the module when it receives segments of Application transport

parameters.

• Compatibility handling: The BICX1GOP_COMPAT field in the

ISP_MSG_CNF_GRP message may optionally be enabled to verify the

compatibility of BICC IEs.

Parameters

When this variant is selected, the following BICC specific parameters may be

used:

Parameter Value

Length

Parameter Name

Hex

Dec

Min

Max

Reference

IN service compatibility

0xa2

162

1

255

Q.1902.3 section 6.53