Routing help - network to mikrotik to mikrotik to internet- VoIP

Hi there,

I have been asked to assist with a job of routing traffic from one network (192.168.4.0/24) attached to a Mikrotik (192.168.1.1) which needs to route that traffic to a second Mikrotik (192.168.1.99) and then out to the internet through that second Mikrotik.
However we need to limit the traffic to only VoIP traffic.
Both Mikrotik routers have seperate internet connections.
I have tried setting up NAT bypass rules on both however its not routing traffic.

Is anyone able to send some pointers my way?

Thanks in advance,
Jake

If you only want to route VoIP packets a certain way you would need to use a separate routing table. Create mangle rules to identify and mark the VoIP packets, which in turn are then marked for another routing table. Then in the /ip routes table, create a new route for the VoIP packets and select the routing table in which this should exist.