I’ve now linked port 5060 dnat to 5060 on the Mikrotik router. You were right it resolved part of the problem. However, audio is now 1 way. I dial one extension, and i can hear the person. I dial another extension, and the person can hear me. I am still battling here. How can i run what tools to diagnose this problem. I wish I could see what was happening at the packet level, although i’m sure it’s a natting factor. A lot of sites are recommending setting up a STUN server. where and how do I configure this. Dr. Google is being slightly vague
Thank you for all your assistance thus far.