I'd like to deploy a VG224 w/ CME v7 via H323, as opposed to SCCP so the analog ports will not subtract from the supported phone count that the ISR will support.

According to everything I can find, if the analog set requires any features other than the basic placing and recieving of calls, SCCP is required.  I have seen some things though that indicate that I could utilize some features via custom scripting (assuming tcl scripts, of which I do not want to recommend due to complexity and lack of support).

Is it accurate that any features outside of placing and recieving calls would not be supported if the VG224 communicates w the CME via H323?

The main feature that my customer requires is call transfer.