164 / Private networking using PRI SL-1Modular ICS 7.1 Installer Guide N0130943 02Break-inThe Meridian attendant can break into an on-going call from atelephone in the Norstar system, if these situations are valid:Break-in can occur when these situations are valid:• Target Norstar telephone is busy but still has a freeintercom or line key.• There is no camped call on the target telephone.• DND busy is turned on, although the attendant canoverride a busy signal, if it is turned off, by pressing theBKI key.• Prime set is also busy, with no free key, and with DNDturned on.• Attendant capability (intrusion) is high (2), and higher thaneither the target telephone or the caller the target telephoneowner is busy with.A warning tone occurs for both parties on the call before theactual break-in occurs.The diagram below demonstrates the call path for a Meridianattendant to break into a call between telephones in the Norstarsystem.
