Does anybody know if there is a way to block unknown caller id calls in CallManager 4.1(3)? We are running MGCP on our PSTN gateway.

Between 2 layer 3 switches, is it better to configure a L3 etherchannel, or configure routed L3 links? If you set them up as routed links, you can load balance in excess of the 8 links limitations imposed by etherchannel. This isn't really an issue...