Hi Temple,
Having just checked the help file, I don't think it is possible:
Transfer To Connect Allowed
If this flag is enabled, an announced transfer call (including an announced transfer from voice mail) connects immediately with the destination once the transferring party hangs up. (If the flag is disabled, the recipient must press a CALL key to answer the transferred call). If the user has a headset enabled, or if the device user picks up the handset for the initial call and the transferring party disconnects, the transferred party will hear a single tone and then be immediately connected without any further action from the device user. Calls will not automatically connect in handsfree speakerphone mode; the user must press a CALL key to answer the call. This flag is disabled by default.
Thanks,
James