I heard someone on this forum said that this function can be implimented by sending USSD. I have tried it with AT commands(AT+CCFC), it works well but all incoming calls are transferred. I just intend to transfer a specified call. I also have tried to use RMobileUssdMessaging to impliment this function, but i received a error message, maybe i used a wrong command. Can somebody give me some advice or example on this? Thanks a lot!