I have registered phone on CCM.Myphone calling internal calls not screened my DN.I want seen privated DN.

Iwant to use Caller ID restricted for example internal calls ip phone A DN1000 Ä°P phoneB DN1010 A call to B.Phone B not seen on screen(restricted) on ip phone

VWIC-1MFT-E1 working on 2811.2 PVDM2-16 on router.incoming call TS 1-15 connection no problem voice ok.But Time slot up to 16 is problem.Connection ok but not work voice.