Port triggering and port forwarding

According to the performance tips, I should be forwarding the following ports from my router to my PC:

  • Port 3478 (UDP & TCP), Port 5222 (UDP & TCP)

However, my router supports only port triggering rules, which means that port forwarding rules are only active when my PC sends out traffic on specified triggering ports. I have currently set the triggering ports to the ports above.

So my question is, are both these ports used also for outgoing traffic from my PC? If not, which one should I use to trigger the rules?