You don't see the prefix of your company name on your mobile. With iPhone, you can only see one option on your screen. At the moment, we cannot configure this differently. We have to adhere to how your iPhone works with the data we send.
Alternative solution?
Besides Variable caller name, we also have variable announcement. If you install this, you can hear which company or department is being called through a sound that plays when you answer. Once the sound has played, you can greet the customer. The customer does not hear this sound.