prioritize sip and skype

Is there any script that would prioritize SIP and skype traffic?

thank you…

No script, just mark packets and use queues.
Skype traffic can be matched using RouterOS new feature - Layer7 protocol matcher.

ok…what about sip?
does anyone know what ports to prioritize and what is simpiest way to do it?
thank you

sip also can be matched by layer7. Also you can use connection-type=sip in mangle rules.

Thank you for the tips about marking the traffic, but doing the mangle I presume is not enough. What are the recommended queue settings once the traffic is marked?

Here is examples how to mark and prioritize traffic:
http://www.mikrotik.com/testdocs/ros/2.9/ip/mangle.php?permalink=0.7790341126868532

http://wiki.mikrotik.com/wiki/TransparentTrafficShaper