I am using a call manager 6.1. My call manager IP address is 172.19.100.1. I am using two subnets for IP phones. One is in the range 172.19.100.x and other in 172.19.101.x. The problem I am facing is that when I connect an IP phone in the 101.x range, the phone is not booting up. It shows configuring IP, then configuring CM listand then TFTP retry. Again the process repeats but does not boot up. The ip phones connected in the range 100.x shows no problem.