Vertical Service Code processing is split between detection logic and processing logic.

Vertical Service Code detection

VerticalServiceCode feature detects vertical service codes in the dial string, optionally removes them from the SIP Request, and sets the session so subsequent features can give effect to the service code.

Operators will normally only need to assign specific service codes and associated announcements in VerticalServiceCodes’s addressList entries.

Vertical Service Code processing

The following features are designed to have at least some of their functionality triggered by VerticalServiceCode feature. These features provide one or more pre-defined VerticalServiceCode_Action profiles which are assigned to operator specific short codes in VerticalServiceCode’s addressList entries.

Feature Description VSC Triggers

updates the Request URI of a SIP INVITE, based on the location of the calling party and the dialled number

PerformLocationBasedDialling session state field set to true

redirects the calling party to their voicemail server.

PerformLocationBasedDialling session state field set to true

performs a list of predefined HTTP PUT operations to update subscriber data in an XCAP server.

  • XCAP_User_Data session plan set

  • XcapDataUpdateActionsQueueAsString session state field contains required actions

  • DialledSuffix sesssion state field used to update XCAP data as appropriate

implements the Originating Identification Restriction (OIR) service

DialledCallerIDRestrictionType session state field.

Supplied Vertical Service Code Actions

Sentinel Volte ships with the following predefined VSC Actions. These cover the VSC use cases within the Sentinel Volte feature set.

Action Session State Field Value

MMTel OIR - Enable Identity Restriction For Current Session

DialledCallerIDRestriction
OIR_CALLER_ID_BLOCK

MMTel OIR - Disable Identity Restriction For Current Session

DialledCallerIDRestriction
OIR_CALLER_ID_UNBLOCK

MMTel OIR - Enable Identity Restriction Permanently

XcapDataUpdateActionsQueueAsString
Default-Privacy-Restricted

MMTel OIR - Disable Identity Restriction Permanently

XcapDataUpdateActionsQueueAsString
Default-Privacy-Not-Restricted

MMTel OIR - Enable Identity Presentation

XcapDataUpdateActionsQueueAsString
Activate-OIP

MMTel OIR - Disable Identity Presentation

XcapDataUpdateActionsQueueAsString
Deactivate-OIP

MMTel CDIV - Enable Call Forwarding For Busy And No Answer

XcapDataUpdateActionsQueueAsString
Activate-CFNR,
Activate-CFB,
Activate-CDIV

MMTel CDIV - Disable Call Forwarding For Busy And No Answer

XcapDataUpdateActionsQueueAsString
Deactivate-CFNR,
Deactivate-CFB

MMTel CDIV - Enable Unconditional Forwarding To Specified Number

XcapDataUpdateActionsQueueAsString
CFU-Forward-To,
Activate-CFU,
Activate-CDIV

MMTel CDIV - Disable Unconditional Forwarding

XcapDataUpdateActionsQueueAsString
Deactivate-CFU

MMTel CDIV - Enable Busy Call Forwarding To Specified Number

XcapDataUpdateActionsQueueAsString
CFB-Forward-To,
Activate-CFB,
Activate-CDIV

MMTel CDIV - Disable Busy Call Forwarding

XcapDataUpdateActionsQueueAsString
Deactivate-CFB

MMTel CDIV - Enable No Answer Call Forwarding To Specified Number

XcapDataUpdateActionsQueueAsString
CFNR-Forward-To,
Activate-CFNR,
Activate-CDIV

MMTel CDIV - Disable No Answer Call Forwarding

XcapDataUpdateActionsQueueAsString
Deactivate-CFNR

MMTel CDIV - Enable Not Logged In Call Forwarding To Specified Number

XcapDataUpdateActionsQueueAsString
CFNL-Forward-To,
Activate-CFNL,
Activate-CDIV

MMTel CDIV - Disable Not Logged In Call Forwarding

XcapDataUpdateActionsQueueAsString
Deactivate-CFNL

MMTel CDIV - Enable Not Reachable Call Forwarding To Specified Number

XcapDataUpdateActionsQueueAsString
CFNRc-Forward-To,
Activate-CFNRc,
Activate-CDIV

MMTel CDIV - Disable Not Reachable Call Forwarding

XcapDataUpdateActionsQueueAsString
Deactivate-CFNRc

MMTel CDIV - Enable Service

XcapDataUpdateActionsQueueAsString
Activate-CDIV

MMTel CDIV - Disable Service

XcapDataUpdateActionsQueueAsString
Deactivate-CDIV

Execute Location Based Dialling

PerformLocationBasedDialling
true

Connect Subscriber To Voicemail Provider

DialVoicemailServer
true

Set Default Forward Voicemail Server Number

XcapDataUpdateActionsQueueAsString
Default-Voicemail-Number

Basic_Search_Continue

Basic_Search_Stop

Basic_Strip_Service_Code_And_Continue_Search

Basic_Strip_Service_Code_And_Stop_Search

Basic_Reject_With_603_Decline

Supplied XCAP Update Action Assumptions

Many of the above VSC actions use the XCAP data Update feature to update subscriber data. The XCAP Data Update feature provides predefined actions to update portions of the user’s XCAP document. Those actions assume the subscriber’s user document has at least the following elements. If the user document has a different structure the XCAP Data Update feature’s corresponding predefined Action will need modification. If the user document has portions missing the provisioning system will need to provide them before the corresponding VSC Action can be assigned to a service code.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<simservs xmlns:ocp="urn:oma:xml:xdm:common-policy" xmlns:cp="urn:ietf:params:xml:ns:common-policy" xmlns="http://uri.etsi.org/ngn/params/xml/simservs/xcap">
    <originating-identity-presentation active="true"/>
    <originating-identity-presentation-restriction active="true">
        <default-behaviour>presentation-not-restricted</default-behaviour>
    </originating-identity-presentation-restriction>
    <communication-diversion active="false">
        <NoReplyTimer>60</NoReplyTimer>
        <cp:ruleset>
            <cp:rule id="call-diversion-busy">
                <cp:conditions>
                    <rule-deactivated/>
                    <busy/>
                </cp:conditions>
                <cp:actions>
                    <forward-to>
                        <target/>
                    </forward-to>
                </cp:actions>
            </cp:rule>
            <cp:rule id="call-diversion-unconditional">
                <cp:conditions>
                    <rule-deactivated/>
                </cp:conditions>
                <cp:actions>
                    <forward-to>
                        <target/>
                    </forward-to>
                </cp:actions>
            </cp:rule>
            <cp:rule id="call-diversion-no-reply">
                <cp:conditions>
                    <rule-deactivated/>
                    <no-answer/>
                </cp:conditions>
                <cp:actions>
                    <forward-to>
                        <target/>
                    </forward-to>
                </cp:actions>
            </cp:rule>
            <cp:rule id="call-diversion-not-reachable">
                <cp:conditions>
                    <rule-deactivated/>
                    <not-reachable/>
                </cp:conditions>
                <cp:actions>
                    <forward-to>
                        <target/>
                    </forward-to>
                </cp:actions>
            </cp:rule>
            <cp:rule id="call-diversion-not-logged-in">
                <cp:conditions>
                    <rule-deactivated/>
                    <not-registered/>
                </cp:conditions>
                <cp:actions>
                    <forward-to>
                        <target/>
                    </forward-to>
                </cp:actions>
            </cp:rule>
        </cp:ruleset>
    </communication-diversion>
    <communication-waiting active="false"/>
    <terminating-identity-presentation active="true"/>
    <terminating-identity-presentation-restriction active="true">
        <default-behaviour>presentation-not-restricted</default-behaviour>
    </terminating-identity-presentation-restriction>
    <incoming-communication-barring active="false">
        <cp:ruleset/>
    </incoming-communication-barring>
    <outgoing-communication-barring active="false">
        <cp:ruleset/>
    </outgoing-communication-barring>
    <extensions/>
</simservs>
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Sentinel VoLTE Version 4.1