Transfer 2nd call somewhere other than 1st call

[stefan@nunetworx.com]

Hi support,
one of our customer's receptionist reported the following issue on W52P 25.73.0.25/26.73.0.10:

1. There's an ongoing call.
2. A second call is answered.
3. Receptionist would like to transfer second call to a certain extension, but the only option available on the handset is to transfer the second call to the first call.

The optimal solution to the problem would be if a phone number could be specified or selected from the phone book at the transfer selection screen.

Thanks!