I thought the name displayed on the called party(out bound call through PSTN) is the one defined on the line setting: Display field. but I look further, it says display(internal caller ID). Does this mean it only applies when call between IP phones? If that's the case where to control the name display to external called party? One of my customers has a problem: whenever they call outside, the called party shows a fake name. I was thinking initially this was due to the display setting on the line, but now I think it is more likely the setting in the carrier PSTN switch. Right?