Caller ID on Forwarded Calls

This is probably one of the most annoying things ever!

I have a BB 8700g which is my personal phone w/ T Mobile. I also have a regular work cell w/ Verizon.

So that I do not have to carry two phones on me all day, I forward my calls from the VERIZON flip phone to the TMOBILE BLACKBERRY.

The annoying part is that everytime some one calls the work cell my BB Caller Id shows my work cell as calling me, not the number of the person calling the work cell. I like knowing the fact this call is a forwarded call from my work cell, but at the same time I would like to know who is calling (Original Caller ID) before I pick up....

Anyone know how to get original caller ID? I have co workers who also have work cell and when they forward to their non BB personals they see Original ID.