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Chapter 8

Supplementary Information String Reference

8.1 Introduction

8.2 Supplementary Information String Summary

: 8.2.1 Calling/Called Line Category SISs
: 8.2.2 Executive Intrusion Feature-Related SISs
: 8.2.3 Call Diversion Feature-Related SISs
: 8.2.4 Call Hold Feature-Related SISs
: 8.2.5 Call Transfer Feature-Related SISs
: 8.2.6 Add-On/Conference Feature-Related SISs
: 8.2.7 Other Supported SISs

8.3 Alphabetical SIS Identifier Reference

8.1 Introduction

This chapter: Provides a summary of DPNSS SIS identifiers according to the supplementary features they are associated with. Provides comprehensive descriptions of each identifier, in alphabetical order.

8.2 Supplementary Information String Summary

The following tables summarize the SIS supported through the CT Access DPNSS service. You can refer to the SIS identifiers described in BTNR 188 Section 4 Annex 2 to obtain the whole list of the SIS identifiers and their codes.

8.2.1 Calling/Called Line Category SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`CLC-ORD`	Calling/Called Line Category - ORDINARY	`DPNSIS_CLC_ORD`
`CLC-DEC`	Calling/Called Line Category - DECADIC	`DPNSIS_CLC_DEC`
`CLC-ISDN`	Calling/Called Line Category - PUBLIC ISDN	`DPNSIS_CLC_ISDN`
`CLC-PSTN`	Calling/Called Line Category - PSTN	`DPNSIS_CLC_PSTN`
`CLC-MF5`	Calling/Called Line Category - SSMF5	`DPNSIS_CLC_MF5`
`CLC-OP`	Calling/Called Line Category - OPERATOR	`DPNSIS_CLC_OP`
`CLC-NET`	Calling/Called Line Category - NETWORK	`DPNSIS_CLC_NET`
`CLC-CONF`	Calling/Called Line Category - CONFERENCE	`DPNSIS_CLC_CONF`

8.2.2 Executive Intrusion Feature-Related SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`EI-PVR`	Executive Intrusion Prior Validation	`DPNSIS_PV_INTRUSION`
`EI-R`	Executive Intrusion Request	`DPNSIS_INTRUSION_REQ`
`IPL-R`	Intrusion Protection Level Request	`DPNSIS_IPL_REQ`
`IPL`	Intrusion Protection Level	`DPNSIS_IPL_RSP`
`EI-I`	Intruded	`DPNSIS_INTRUDING`
`EI-W`	Executive Intrusion Withdraw	`DPNSIS_INTRUSION_WITHDRAW`
`SOD-REQ`	State of Destination Request	`DPNSIS_STATE_OF_DEST_REQ`
`ACK`	Acknowledge	`DPNSIS_INTRUSION_ACK`¹
`ACK`	Acknowledge	`DPNSIS_WITHDRAW_ACK`*
`SNU`	Signal Not Understood	`DPNSIS_WITHDRAW_NOT_SUPPORTED`*

¹ The DPNSS service must distinguish Acknowledgement and Not Understood messages according to each original request message.

8.2.3 Call Diversion Feature-Related SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`DIV-V`	Diversion Validation	`DPNSIS_DIV_VALIDATION`
`DIV-BY`	Diversion BY pass	`DPNSIS_DIV_BYPASS`
`DVG-I`	Diverting Immediate	`DPNSIS_DIVERTING_IMM`
`DVG-B`	Diverting on Busy	`DPNSIS_DIVERTING_BSY`
`DVG-R`	Diverting on No Reply	`DPNSIS_DIVERTING_RNR`
`DVT-I`	Divert Immediate	`DPNSIS_DIVERT_IMM`
`DVT-B`	Divert on Busy	`DPNSIS_DIVERT_BSY`
`DVT-R`	Divert on No Reply	`DPNSIS_DIVERT_RNR`
`DVD-I`	Diverted Immediate	`DPNSIS_DIVERTED_IMM`
`DVD-B`	Diverted on Busy	`DPNSIS_DIVERTED_BSY`
`DVD-R`	Diverted on No Reply	`DPNSIS_DIVERTED_RNR`

8.2.4 Call Hold Feature-Related SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`HOLD-REQ`	Hold Request	`DPNSIS_HOLD_REQ`
`RECON`	Hold Reconnect	`DPNSIS_RECONNECT`
`ACK`	Acknowledge	`DPNSIS_HOLD_ACK`¹
`REJ`	Reject	`DPNSIS_HOLD_REJECT`*
`SNU`	Signal Not Understood	`DPNSIS_HOLD_NOT_SUPPORTED`*

¹ The DPNSS service must distinguish Acknowledgement, Rejection, and Not Understood messages according to each original request message.

8.2.5 Call Transfer Feature-Related SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`ENQ`	Enquiry	`DPNSIS_ENQUIRY`
`TWP`	Two Party	`DPNSIS_TWO_PARTY_O`¹ `DPNSIS_TWO_PARTY_T`*
`TRFD`	Transferred	`DPNSIS_TRANSFERRED`
`TRFR`	Transfer	`DPNSIS_TRANSFER_O``DPNSIS_TRANSFER_T`

¹ The "O" and "T" are normally parameters passed with this SIS message, but the CT Access DPNSS service provides two different SIS identifiers instead.

8.2.6 Add-On/Conference Feature-Related SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`AD-V`	Add-On Validation	`DPNSIS_ADD_ON_VALIDATION`
`AD-O`	Added On	`DPNSIS_ADDED_ON`
`AC-CDC`	Add-On Conference ClearDown	`DPNSIS_ADD_ON_CLEARDOWN`
`ACK`	Acknowledge	`DPNSIS_ADD_ON_ACK`¹
`REJ`	Reject	`DPNSIS_ADD_ON_REJECT`*
`SNU`	Signal Not Understood	`DPNSIS_ADD_ON_NOT_SUPPORTED` *

¹ The DPNSS service must distinguish Acknowledgement, Rejection, and Not Understood messages according to each original request message.

8.2.7 Other Supported SISs


SIS Mnemonic	BTNR 188 SIS Name	DPNSS service SIS Identifier
`ACK`	Acknowledge	`DPNSIS_MSG_ACK`
`REJ`	Reject	`DPNSIS_MSG_REJECT`
`SOD-REQ`	State of Destination Request	`DPNSIS_STATE_OF_DEST_REQ`
`OLI/CLI`	Originating/Called Line Identity	`DPNSIS_CLI`
`NSI`	Non-Specified Information	`DPNSIS_NSI`
`TEXT`	Text	`DPNSIS_TEXT`
`TID`	Trunk Identity	`DPNSIS_TID`
`CH-ACR`	Charge Reporting Account Code Request	`DPNSIS_CHARGE_CODE_REQ`
`CH-AC`	Charge Reporting Account Code	`DPNSIS_CHARGE_CODE_RSP`
(None)	(Allows an application to send any SIS message that is not directly supported by the DPNSS service.)	`DPNSIS_DIRECT_SIS_MSG`

8.3 Alphabetical SIS Identifier Reference

The following is a comprehensive, alphabetically-ordered reference to the DPNSS service supplementary information string (SIS) identifiers.

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