For a long time we used to have 3 different locations connected via Mikrotik router and T1 links. Then we had the great idea of installing Peplink 380 with bonded T and cable to get more redundancy. Turns out Peplink’s VPN is not even close to Mikrotik’s. Even if we run solely on T1, the jitter is pretty bad and the time exceeds 30ms which leads to pretty bad SIP voice quality. I tried bumping up the priority but that does not help. Peplink is much easier to use though.
We are going back to mikrotik unless someone has any ideas.