Multicast Paging with Cisco IP Phone between 2 subnets

RouterOS Forwarding Protocols
1

Hi,
How do I setup Multicast to allow muticast paging between cisco phone on 2 IP Subnets?

I have a RB493.
One interface has 192.168.0.0/24 subnet
another has 192.168.2.0/24 subnet.

Phone paging script has pggrp=244.168.168.168

If both phone are in the same Subnet, Paging works fine. If then are on separate subnets paging does not work.

How would I setup PIM routing between the 2 subnets?

2

You will need an IGP or static routes so the multicast subnets are reachable and you will need to enable PIM on the interface of the multicast LAN segments

http://wiki.mikrotik.com/wiki/Manual:Multicast_detailed_example

3

So would the phones then need to be on 2 seperate Multicast subnets?

4

when you are talking about mutlicast and IGMP - there are no subnets. If your phones are using multicast for some reason, they will automatically join certain IGMP groups they do require. All you have to do is to provide PIM setup. Also, make sure that they do support PIM-SM as that is supported by RouterOS.