[Freeswitch-users] shared line CID problem

Hi, Currently experiencing a problem with SLA on Polycoms where when the call is answered the CID name / number changes to be the phoens extension number and no longer shows the incoming cid of the caller. This is also experienced when eextension to extension dialing but is more speratic where 20% of the time after the bridge is answered the CID changes but the other 80% of the time for extension dialing its fine. I have the same problem on FS versions 1.8.56 1.8.7 and the latest 1.10. Does anyone have any recommendations?