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Section 6 Interface to Application
26
6.4 Parameter Extension Mechanism
The CCPN_parameter type value 128 (0x80) is used as an extension
parameter indicator. The parameter extension mechanism is used for all
parameter types whose decimal value is greater than 255 at the common
control interface. If a parameter value of 128 (0x80) is contained within a
message for sending to or received from the user, the actual parameter type
value (minus 256) is contained in the third byte which is subsequently
followed by the length of the parameter and its data as shown below:
Name Length Data
0x80 Parameter
Length + 2
Parameter
Name - 256
Parameter
Length
Parameter Data
1 byte 1 byte 1 byte 1 byte ‘Length’ bytes (1 to 253)
6.5 Application Messages to ISUP
The following table lists all application messages (message type
ISP_MSG_TX_REQ) sent to ISUP module by the user application:
Value Primitive Message
type
Dec Hex
Use
Alerting request ACM
CPG
6
44
0x06
0x2c
Indicates incoming called party being
alerted.
Application transport
request
APM 65 0x41 To issue an application transport
message.
Charge request
(Generic)
CRG 49 0x31 Carries charging information.
Circuit seized request SZE 199 0xc7 Used to initiate a continuity test call
and indicates that a circuit has been
seized for an outgoing call (but no
address information has yet been
sent).
Confusion request CFN 47 0x2f Requests that a confusion message is
sent.
Continuity request COT 5 0x05 Indicates whether the continuity test
succeeded.
Collection charging
request
MPM 201 0xc9 Used to carry charging information.
End-to-end message
request
PAM 40 0x28 Requests that an end-to-end message
is sent.
Facility request FAR
FAC
31
51
0x1f
0x33
Request activation of a particular
facility or action at another exchange.
FAA 32 0x20 Used to accept or reject a facility . Facility response
FRJ 33 0x21 Previously requested with a facility
request.
Forward transfer
request
FOT 8 0x08 Send forward transfer to the network.
Information request SAM 2 0x02 Subsequent address digits for overlap
signaling.
- Dialogic 1
- SS7 Protocols 1
- Contents 3
- Figures 6
- Revision History 7
- About this Publication 9
- 1.3 Related Documentation 10
- 1.4 Feature Overview 11
- 2 General Description 13
- Value Mnemonic Meaning 14
- 3 Internal Data Structures 17
- 4.1 System Functions 19
- 4.2 Timer Operation 19
- 5 Interface to MTP 21
- Section 5 Interface to MTP 22
- 6 Interface to Application 23
- 6.2.2 Receive Indication 24
- 6.5.1 Alerting Request 28
- 6.5.6 Confusion Request 32
- 6.5.7 Continuity Request 32
- 6.5.9 Exit Request 33
- 6.5.10 Facility Request 33
- 6.5.11 Facility Response 35
- 6.5.15 Information Request 37
- 6.5.19 Overload Request 40
- 6.5.21 Proceeding request 41
- 6.5.22 Progress Request 42
- 6.5.23 Release Response 43
- 6.5.24 Release Request 44
- 6.5.26 Resume Request 45
- 6.5.27 Segmentation Request 46
- 6.5.28 Setup Request 46
- 6.5.29 Setup Response 49
- 6.5.31 Suspend Request 52
- 6.6.1 Alerting Indication 56
- 6.6.6 Confusion Indication 60
- 6.6.7 Continuity Indication 61
- 6.6.9 Exit Indication 61
- 6.6.10 Facility Indication 62
- 6.6.11 Facility Confirmation 63
- 6.6.19 Overload Indication 68
- 6.6.21 Proceeding Indication 69
- 6.6.22 Progress Indication 70
- 6.6.23 Release Confirmation 71
- 6.6.24 Release Indication 71
- 6.6.26 Resume Indication 73
- 6.6.28 Setup Confirmation 74
- 6.6.29 Setup Indication 76
- 6.6.31 Suspend Indication 79
- 6.7 Parameter Definitions 80
- 6.7.1 Called Party Number 86
- 6.7.2 Calling Party Number 86
- 6.7.3 Cause Indicators 87
- 6.7.4 Custom Parameter 88
- 6.7.5 Message Data 88
- 6.7.7 Tariff Type 89
- 6.7.8 Unrecognised Parameter 90
- 6.8.3 Hop Counter Procedure 94
- 6.8.4 Continuity Testing 95
- Call Set Up 99
- Service 108
- 6.8.6 Message Segmentation 109
- 7 Management Interface 113
- reserved Set to zero 116
- 7.6 Local Overload Request 118
- Parameters 120
- 8 Non-Primitive Interface 121
- 8.3.1 Timer default values 138
- 8.5 Variant Initialisation 141
- operation 142
- message type 142
- 8.8 Read RAM Request 145
- 8.10 Read Circuit Request 146
- 8.11 Read Revision Request 146
- Section 150
- Event specific data 158
- Call states 164
- 8.22 Trace Event Indication 166
- A.1 German ISUP 171
- A.2 UK ISUP 172
- A.3 Japan (TTC) ISUP 173
- A.4 Nortel RLT 174
- A.4.2 Nortel RLT (ITU) 175
- A.5 Italian ISUP 176
- A.6 French ISUP 177
- A.7 China ISUP 178
- A.8 Finnish ISUP 180
- A.9 BICC 180
- Hex Dec Min Max 181
- Reference 181
- ISUP Module 183
- B.2 ITU-T Parameters 184
- B.3 ANSI T1.113 Messages 188
- B.4 ANSI T1.113 Parameters 189
- More Extended Options 195
- Appendix F: Timer Services 199
- F.1 Timer Expiry 200
- Variant Initialisation, 141 203
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