Good day . I can't transfer 6921 phones from SCCP to SIP firmware . TFTPD64 or pumpkin says that the firmware was successfully installed , but nothing happens with the phone . Please tell me what i'm doing wrong  ?

Good day.I have a cucm and cisco cube router with 2 city numbers . Сalls come from outside but don't outgoing to all city numbers ( 7 digits ) , but there is no problem for 3 digits . Can you help me ?