CallerID Problem with FreePBX and Prima Cell

Hello ;

I have a Questions please , i connecting a Prima Cell with 1 Sim Card model Gawaxini to the Free PBX through the FXO Card , and if any one tried To call me on the sim Card in this Prima cell , i face two Problems , >>

1- DTMF is not Working if any one Pressed 1 or 2 or 3 etc… on the IVR it didn’t Respond

2- the Caller id appear on the IP-Phone " UNKNOWN "

Any Solution for these Problems ???

Many thanks .