We have the EXACT same problem, and it does it whether I'm forwarding a call from voip.ms to my cell, or using a SIP phone. We answer and I hear the other person and I'm like "Hello?" wait 5 secs "Hello?" then finally they are like "Oh hi how are you?". I've changed servers and everything and it does this all the time, that's why in my other thread I've been trying to find another phone provider.
How come I dont have this issue? If I understand correctly you change servers and the issue persists which states that is a voip.ms issue. I use: Houston, Dallas, and sometimes Chicago and Atlanta. No issues here with delay. -- [nUll@dcypher ~]$