Can we assign our phone numbers to soft keys

Got it! Have you tried out this link? https://support.8x8.com/equipment-devices/phones/poly/configuring-or-rearranging-soft-keys-for-poly-phones

we dont have access to that interface. Only online comcast business interface 

Ok, thank you for trying that. When you do, is it giving you an error or the log in information isn't working? Since the soft key feature is part of the phones themselves, I don't think there is another way to set that up.

Its asks for a password but we dont have it.

Should we have been provided with the password(s)?  i tried default passcode but it didnt work