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SS7 Protocols ISUP Programmer's Manual Issue 15
6.3 Application Message - User Data Format
The format of user data in transmit request and receive indication messages
between the Application and the ISUP module is based on the ISUP message
format specified in Q.763.
The first byte of the data is the ISUP message type. The message type
values are specified in Table 4/Q.763 and the last byte of the data is zero to
indicate that there are no further parameters contained within the message.
Any parameters associated with the message are placed between the
message type byte and the last byte of the data. The parameter area is
therefore formatted as follows:
ISUP
Message Type
Parameter Parameter Parameter Zero
The parameters may be placed in any order. The first byte of a parameter is
the parameter name (based on Table 5/Q.763 but specified in Section 9 of
this programmer’s manual), the second byte is the length of parameter data
to follow (excluding the parameter name and the length byte itself), this is
followed by the parameter data which is formatted (based on Q.763) as
defined in section 9. Each parameter is therefore formatted as follows:
ISUP
Message Type
Parameter Parameter Parameter
25
Zero
Parameter
Name
Parameter
Length
Parameter
Data
1 byte 1 byte ‘Length’ bytes (1 to 255)
Note: Unlike the message format specified in Q.763, there are no 'fixed' or 'variable'
parameters where the parameter name or type are implied by their position in the
message. Instead all parameters contain parameter name, parameter length and
parameter data.
Within each message, there are Mandatory parameters, which must always
be present and Optional parameters, which may or may not be present.
Many of the optional values have default values, which are added by the ISUP
module if not provided by the user as described in the parameter
specification.
All supported application messages are listed in
Section 6.5 on page 26 and
Section 6.6 on page 54. All applicable parameters for each message are
listed in the following sub-sections (refer also to Appendix A:
ISUP National
Variants
on page 171) and a list of all supported parameters are provided in
Section : 6.7 Parameter Definitions on page 80.
- 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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