Does mikrotik have suport for sip? As far as I have seen, it has only support for voip…
I might have an answer for you but I need to understand what you need to do. SIP, H323, MGPI are VoIP standards. I currently use MT and VoIP on the same infrastructure.
Let me know more about what you need to do.
SIP uses RTP for transport. We have found it impossible to prioritize RTP traffic using mangle and QoS with Mikrotik which is bad because we have customers that tend to stuff their pipes and need to prioritize their SIP traffic. Success has been variable.
I have a WiFi SIP phone from ZyXel sitting on my home WiFi network, which then has five Mikrotik routers between it and the Asterisk server (with two more wireless hops). Unfortunately the jitter on the outdoor links makes the conversations hard to deal with.
Switching to IAX2 may make life a little easier as it uses UDP 4569, which can be priortised easily unlike RTP. If you are happy with ALAW/ULAW the IAXy device may be an option.
We do this by mangling traffic to the Asterisk servers’ addresses. Since the servers are dedicated to *, this works fine. This misses traffic from reinvites between two devices, but we generally disallow that anyway. SIP traffic to 3rd party providers is just “general” traffic to us. That is to say that we want to prioritize VoIP traffic to our VoIP servers only.