You must have this commands in basic configuration (example):interface GigabitEthernet0/0ip address 10.21.0.1 255.255.128.0h323-gateway voip interfaceh323-gateway voip bind srcaddr 10.21.0.1Sent from Cisco Technical Support iPad App
You can use:- preferences to call to ip phone first- pilot number to call to both phones in one time- hunt group to call phones one by oneSent from Cisco Technical Support iPad App
You can check where calls to go by the commandshow dialplan number 123456orshow dialplan number 123456#Also you configured forward-digit 4 which could be a problem to you. Look for description about this commandSent from Cisco Technical Support iPad ...
Configure SCCP to enable it like this:sccp local GigabitEthernet2/0sccp ccm 10.21.0.1 identifier 1 version 7.0sccpAlso will be good if you will place firmware updates for phones:tftp-server flash0:SCCP11.8-4-2S.loadstftp-server flash0:SCCP31.8-4-2S.l...