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Page 730 of 1536 Chapter 3 — DPNSS1/DASS2 features description <strong>and</strong> implementation<br />

DPNSS1/Uniform Dialing Plan Interworking<br />

DPNSS1/Uniform Dialing Plan Interworking does not affect Executive<br />

Intrusion operation, except with regard to displays. The Executive Intrusion<br />

states normally displayed are Coordinated Dialing Plan Calling Line IDs <strong>and</strong><br />

Originating Line IDs. If a Uniform Dialing Plan is active in the network,<br />

displays will change to Uniform Dialing Plan Calling Line IDs <strong>and</strong><br />

Originating Line IDs.<br />

Executive Intrusion denied for the Wanted Node during DPNSS1<br />

Three-party Service<br />

Executive Intrusion will not be allowed if either the requested or unrequested<br />

party is involved in an enquiry call. In addition, Executive Intrusion will be<br />

denied if the requested party or the unrequested party is the controlling or the<br />

added-on party of a three-party conference call. The third party (the one held<br />

during the enquiry call before the conference is completed) is not subject to<br />

this restriction.<br />

Step Back on Congestion<br />

If Step Back on Congestion (SBOC) is active, an ISRM containing an<br />

Executive Intrusion request will undergo the SBOC routing process as per<br />

any other call.<br />

Other Interactions<br />

Attendant Blocking of DN<br />

If an Executive Intrusion attempt is made for an Attendant Blocking of DN<br />

call, the Executive Intrusion attempt is denied.<br />

Attendant Conference<br />

If an Executive Intrusion conference is established on the Destination side,<br />

pressing the Attendant conference key is ignored.<br />

Attendant Secrecy<br />

Enhanced Secrecy<br />

If attendant secrecy is not active when the attendant attempts Executive<br />

Intrusion, the source is automatically excluded. If Enhanced Secrecy is<br />

equipped, source exclusion includes the removal of the Enhanced Secrecy<br />

warning tone when Executive Intrusion is activated.<br />

553-3011-315 St<strong>and</strong>ard 10.0 May 1999

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