Multicast Paging - Viking PA-250-IP Product Manual

10. SIP Page Priority over Multicast Page
Incoming PA-250-IP SIP call audio streams can be programmed to have priority over any of the 10 standard Multicast
paging groups. Simply Use the "Sip Page Priority Level" drop down menu to select which Multicast group you want
SIP calls to have priority over. Factory Setting: 0 (SIP is highest priority)
When Polycom is selected as the Multicast Page Type, the "SIP Page Priority Level" can be set to "Polycom" or "None".
See the following tables for the order of priorities with each setting. As shown, Polycom Group 25 multicast is the
highest priority. The priority options allow you to determine the priorities for Polycom Groups 1 through 24 multicast
signals and SIP paging. Factory Setting: Polycom
(SIP Page Priority Level set to "Polycom")
Polycom Group 25
Polycom Groups 1-24

11. Multicast Paging

Standard
When using standard Multicast Paging, up to 10 multicast paging groups can be programmed into each PA-250-IP
paging amplifier. 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 to 255 seconds. Only one timeout time can be programmed for all Multicast groups. By default groups
0-8 have the timeout enabled, group 9's timeout is disabled. This is useful for background music.
Assigning Priority for standard multicast paging
The PA-250-IP will prioritize simultaneous Multicast 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 PA-250-IP multicast page adapters. There is no limit to how many page adapters 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.
Polycom (requires V3.0 or higher unit firmware)
Polycom IP phones send multicast audio to a specific IP address and port. A total of 25 groups can be used, with group
25 generally reserved for an emergency broadcast. Set the Multicast Page Type to "Polycom" ("Adapter Settings" tab).
The Viking IP programming page will then show "Polycom Paging Source and Group Subscriptions" on the
"Codes/Paging" tab. Polycom phones will default to IP address 224.0.1.116 and port 5001 for multicast. Under
"Polycom Paging Source and Group Subscriptions", enter the IP address and port you chose in the Polycom IP phone
as "Multicast IP address" and "port" (Paging/PTT Configuration page). Select the paging groups the PA-250-IP should
subscribe to. Any multicast audio sent to the correct IP address, port number and a subscribed group will be heard
from both the Speaker Out and Line Out terminals. Group 1 is the lowest priority and group 25 is the highest. The
Volume and Timeout can be selected globally, although the timeout does not affect group 25.
Factory Setting: All Groups selected
12. Multicast Paging Volume
The volume of each individual standard multicast page can be adjusted from 0 - 19. When polycom paging is used,
the paging volume is set globally for all 25 groups. Factory Setting: 1
Paging Priorities
SIP paging
Paging Priorities
(SIP Page Priority Level set to "None")
Polycom Group 25
Polycom Groups 1-24
15
SIP paging