Hi, guys..needs some help troubleshooting here. I have 3 SV8100s that I have setup with CCIS. On SV8100A I have all the IP phones reporting to with extensions 11xx, 13xx, 14xx...etc. SV8100B has ext 12xx and SV8100C has ext 25xx. I have no problem calling between the switches..However, if I am at X1701 and call x1501(which are on the same switch) it rings and they pick up but no voice passes...any ideas?