The phone opens a multicast RTP session and an outgoing OR incoming phone screen displays as follows.

Paging 00:01

Drop

2.Press the Drop key to end the multicast RTP session and return to the idle screen.

Note: If you enable global DND on the phone, the incoming multicast RTP session is dropped.

Line Keys, Programmable Keys, and Softkeys

Model 6755i IP Phone User Guide

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Aastra Telecom manual Model 6755i IP Phone User Guide 147