We use Informacast at our offices to send pages and such to a group of phones. I recently finished setting up the network for a new location of ours. The paging and other multicast related things (AV devices) were functioning as intended.
About a week ago we got a report that the folks in the new location were suddenly receiving only a beep without any audio when a page was sent.
They have a combination of Cisco 7800 and 7900 series phones (none are receiving audio at the site). Knowing that Informacast uses Multicast I checked to make sure that any L3 interfaces along the path to the new site had pim enabled, which they did. I then began googling about the issue and tried the steps that were outlined including: disabling igmp snooping on the voice vlan and enabling IGMPv3 on the L3 interfaces. Still no audio. Has anyone experienced these sort of issues with it? It works fine at our other locations with the same configuration. It's worth noting that the switches at the new location are a combination of Cisco 9300 and 9400 with IOS-XE 3.6.x whereas most other sites have 3750x's.
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