Ok, one more guys. CID passing to SPA112

Ok, I have a DID setup to connect to a persons home phone system. It’s a standard wireless phone system that is connected via Cisco SPA112. It’s setup as a standard extension. I also have other DID’s setup that go directly to SIP phones… they carry the CID just fine. The SPA112 gets “unknown” but the strange part is when they are on a call and the call waiting kicks in the CID is there.

Any ideas?

Thanks in advance.

Anyone have this issue? Or any suggestions?