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10. SIP Page / Call Priority vs Multicast
Incoming and outgoing SIP call audio streams can be programmed to have priority over any of the 10 multicast paging
groups. Use the "SIP In Above" and "SIP Out Above" drop down menus to select which multicast groups you want SIP
calls to have priority over. "SIP In Above" is to set the priority of incoming SIP pages and "SIP Out Above" is to set the
priority of outgoing SIP calls. Factory Setting for both: 0 (SIP is highest priority)
11. Multicast Paging
The 40TB-IP is designed and tested to be compatible with FreeSwitch Multicast Paging. Up to 10 multicast paging
groups can be programmed into each 40TB-IP speaker. Each multicast group is defined by a multicast address and
port number. Each multicast group is assigned a priority, allowing simultaneously arriving pages to be serviced based
on importance. A timeout check box can be selected for each paging group. See Multicast Page Length Time Out under
Speaker Settings to adjust the timeout from 1 - 255 seconds. Only one timeout time can be programmed for all groups.
The volume for each multicast group can be programmed separately.
Assigning Priority
The 40TB-IP will prioritize simultaneous audio streams according to their priority in the Paging Sources list. Group 0
will have the highest priority while group 9 will have the lowest priority. Group 9 is useful for a low priority stream such
as background music. Group 0 is useful for high priority streams such as emergency messages.
The multicast paging groups can also be used for up to ten different paging zones for receiving audio streams. A paging
zone can consist of one or many 40TB-IP multicast speakers. There is no limit to how many speakers can be in a given
paging zone. Each multicast group is defined by a multicast address and port number. Each multicast group is assigned
a priority, allowing simultaneously arriving pages to be serviced based on importance.
12. Multicast Paging Volume
The volume of each individual multicast page can be adjusted from 0 - 19. Factory Setting: 1
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