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TCAPStateReq
Description
Notifies all concerned point codes of a change in its subsystem state by generating a Subsystem Available (SSA) or Subsystem Prohibited (SSP) message to all concerned signaling points (as specified by the configuration of the application's SCCP SAP)
Prototype
DWORD
TCAPStateReq
(
CTAHD
ctahd
,
S16
spId
,
U8
aSsn
,
U8
status
)
ctahd
Context handle returned by
ctaCreateContext
.
spId
TCAP sap ID to which the caller is bound.
aSsn
Affected subsystem number.
status
New subsystem status.
Return Values
TCAP_SUCCESS
TCAP_BOARD
The specified context handle (
ctahd
) is invalid.
TCAP_DRIVER
An error occurred accessing the CPI driver.
CTAERR_OUT_OF_MEMORY
The TCAP API queue is full and another request could not be queued to the TCAP layer.
Details
The new subsystem status field must contain one of the following values:
SS_OOS 0x03 Subsystem out of service
SS_IS 0x04 Subsystem in service
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