Parameters Set-up:
Paging Barge: multicast or how many multicast calls are higher priority
than sip call, if choose disable, sip call will have high priority
Paging priority Active: multicast calls are called in order of priority or not
Listening Address: Enter multicast IP address which users need to listen.
The multicast IP address need to be same as the listened part and the
multicast port can not be same for each IP address. Multicast IP address is
from 224.0.0.0 to 239.255.255.255.
Label: Enter the label for each listening address.
5.4.10. Push to Hang Up
Setup the Push button for hang up the call when press again the button during