Welltech Dialogic SS7 Protocols ISUP Manuale Utente Pagina 44
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Section 6 Interface to Application
44
Optional parameters
The following parameters are supported in ITU-T mode only
• Cause indicators
6.5.24 Release Request
This primitive is used by the application to initiate call clearing and as an
immediate response to a received Release indication primitive from the ISUP
module.
To initiate call clearing, the application should send this message to the ISUP
module. It should then wait until a Release confirmation (RLC) is received
from the ISUP module before selecting the circuit for a new outgoing call
attempt. Refer to
Section : 6.8.1 Call Clearing Procedure on page 90 for
further information.
Message type
REL (Release Message)
Mandatory parameters
None
Optional parameters
• Access transport
• Cause indicators
Defaults to the following if not supplied:
• Coding standard = ITU-T
• Location = User
• Recommendation = Q.931
• Cause Value = Normal. Unspecified
• Generic number (address)
This parameter may be repeated in this message
• Signalling point code
• User to user information
Discarded if user to user service 1 has not been accepted
• User to user indicators
The following optional parameters are supported in ITU-T mode only
• Access delivery information
• Automatic congestion control
• Network specific facility
• Parameter compatibility information
• Redirection information
- 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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