Welltech Dialogic SS7 Protocols ISUP - Manual (Page 123)

Dialogic ® SS7 Protocols ISUP Programmer's Manual Issue 15
123
Parameters
options
Run-time options assigned according to the following table:
Bit Number Mnemonic Description
0 ISPF_TFRM If set to 1, messages sent to the MTP module will use
T_FRAME format. If set to zero, messages sent to the
MTP will use the MSG format.
1 ISPF_DUAL When set to 1, if a message is received from MTP for a
circuit that does not belong to a circuit group, the
message is passed on to the partner module specified
in the module_id field of this message. This option
allows two instances of the ISUP module to exist in a
single signaling point. Each instance handles a sub-set
of the total circuits and co-operates with the other
instance to ensure that all messages arrive at the
correct instance. Note that for correct operation, all
circuits on one route must be handled by the same
instance of ISUP.
2 ISPF_ACR This bit should always be set to 1 for applications
conforming to the call release procedures described in
this issue of the ISUP programmer’s manual.
Earlier application versions will set this bit to zero.
3 ISPF_CCR If set to 1, when a call collision is detected, the ISUP
module will release the call to the user by sending a
REL with cause value 44 “circuit is not available”.
4 ISPF_NAI This bit should always be set to 1 for applications
conforming to the call clearing procedures described in
this issue of the ISUP programmer’s manual.
Earlier application versions will set this bit to zero.
5 ISPF_UCIC If set to 1, when the module receives a message for an
unrecognized circuit it will issue an Unequipped CIC
(UCIC) message and will recognize receipt of a UCIC
message.
Note: for new applications this option should be set to 0
and the corresponding circuit group extended option
ISPXGOP_UCIC (bit 15) used instead. This option is
retained for backwards compatibility.
6 ISPF_GSPS If set to 1, causes a Circuit Group Supervision
Indication (one for each circuit group affected) to be
sent to indicate remote point code availability instead of
the Remote Point Code Status Indication primitive.
7 Reserved Reserved for future use and must be set to zero.
8 ISPF_24PC If set to 1, causes 24 bit point codes, 14 bit cic and 5 bit
sls to be used. If set to zero, 14 bit point codes, 12 bit
cic and 4 bit sls will be used.
9 ISPF_ANSI If set to 1, ANSI (T1.113 - 1992) operation is selected.
Note: for new applications this option should be set to 0
and the variant parameter of the Configure Circuit
Group Request message should be used instead. This
option is retained for backwards compatibility.