I have 2 remote branch that has a router gateway local, and a call manager central, with voip and a link frame relay, everything was working well. But since Monday they can do call, they can't do not listen but whom they call if can listen.
Since Monday the service provider is performing increases of bandwidths 64k to 256k, I have traffic shapping applied to 60k and fragmentation is 80, I have not done no change
This can cause this behavior? Why?