Welltech Dialogic SS7 Protocols ISUP - Manual (Page 148)

Section 8 Non-Primitive Interface
148
Parameters
gid
The group identifier for the Circuit Group.
cic_mask
A 32-bit mask indicating to which of the circuits in the circuit group the
message applies. A "1" set in bit n (0
applies to circuit n.
status
This is an array of 32 pairs of octets, each pair indicating the status of the
circuit. Each circuit state is represented by one 16-bit value. The first pair of
octets corresponds to the circuit represented by the least significant bit of the
cic_mask. The status for any circuit for which the bit in cic_mask is not set
will be set to zero.
In each octet pair, the first octet (the most significant octet) is encoded as in
the ISUP circuit state indicator parameter defined in ITU-T Recommendation
Q.763 ISUP formats and codes (09/97) Section 3.14. Those states used by
ISUP are defined in the following two tables (the state values indicated in the
tables represents the value of the entire octet) :
Circuit state indicator parameter - bits DC equal to 00:
Value State Description
Maintenance blocking states:
0x00 Maintenance blocking – transient The circuit is in a transient Maintenance
State. For example, a blocking message has
been sent and no acknowledgement has yet
been received.
0x03 Maintenance blocking – unequipped The circuit does not belong to a group.
Circuit state indicator parameter - bits DC not equal to 00:
Value State Description
Maintenance blocking states:
0x0d Maintenance blocking – locally blocked Circuit locally maintenance blocked.
0x0e Maintenance blocking – remotely blocked Circuit remotely maintenance blocked.
Call processing states:
0x04 Call processing – circuit incoming busy Incoming call.
0x08 Call processing – circuit outgoing busy Outgoing call.
0x0c Call processing – circuit idle Circuit idle.
Hardware blocking states:
0x1c Hardware blocking – locally blocked Circuit locally hardware blocked.
0x2c Hardware blocking – remotely blocked Circuit remotely hardware blocked.