Webclient showing difference between cell and office phone

[AlbertSFCO]

I would be very great if you can see easily the difference between a cellphone number or a office phone number. Now it is not clear which number you have to choose without opening the contactdetails in the phonebook to contact the person you need.

Maybe it is an idea to place small icons in front of the number so you can see to which phone you are calling.

Thanks a lot!