T20P Caller ID when using IP Call

[rademedes]

Hello,

There are two phones on the network with the following IP's:
192.168.1.1
192.168.1.2

When I call 192.168.1.1 from 192.168.1.2 caller ID shows: 192.168.1.2 on both lines. Shouldn't I see whatever I put in "Display Name" from Web>Account Page?

I was testing different options for "Caller ID Source" under Account>Advanced but the only thing I see is IP address.

Thanks