Call pickup

Hello friends,

I have installed Elastix 2.3.0 with Asterisk and FreePBX 2.8.1 with CISCO SPA504g phones.
I have the following issue which i don’t know if it can be solved:
Let’s say i have A, B and C. C it’s an outside caller.
When C calls to ext B and i pickup the call to ext A, i only see the pickup code on the screen.
Is there any way instead of pickup code to see the callers © number?
If yes how can i do this?
Any quick help would be appreciated!!

Many thanks,
Constantinos Tsouris … nformation

Note, whether or not you can do this may depend on the technology.