334 Chapter 36 Private networking: DPNSS network services (UK only)NN40020-603NN40020-603Programming IPL on a telephoneTo program IPL1 Click Configuration > Telephony > Sets.2 On the panel, locate and click the Capabilities and Preferences tab.3 Select the DN of the telephone set being programmed.The Details subpanel for that DN appears in the lower portion of the panel.4 Click the Capabilities tab.5 Locate the Intrusion protection level and select the required option from the drop-down menu.Call offerCall Offer over DPNSS 1 allows a calling party to indicate to the wanted party that there is anincoming call available, even though there is no answer button available to present the call on thetelephone.Restrictions by telephone type• model 7000 telephone — associated LED or LCD flashes, and a tone is heard• ATA2/ASM8+—Call Offer is supported as a Camp On feature, and a tone is heard• ISDN—not supportedNote the following general conditions and restrictions:• DND on busy must be programmed as N (DN ##/Capabilities) for a telephone to acceptCall Offer.• If CF on busy is programmed for the telephone, Call Offer is not accepted.• The target line for the telephone must be set to: If busy: busy tone, which is the default.Refer to “Configuring lines: Target lines” on page 141.• Call Offer does not work if sent over Manual answer lines. It is recommended that the lines beleft at the default: Auto.Note: Forward on Busy takes priority over DND on Busy. Call Offercannot be accepted by putting an active call on hold.
