Samsung X427: programming a "pause"

I just signed up with Cingular and got a Samsung X427 that I'm very happy with. However, does anyone know if it's possible to program a "pause" into a phonebook entry? For example, I'd like to be able to program the phone to dial a number like 212-555-5500 [pause] 123, which would eliminate the need to manually key in the 123 extension number. I used to have a Samsung A400 which had this capability, but I'm unable to figure this out on the X427. Any help is much appreciated. Thanks.

yeah, it has a pause, simply go to the phonebook entry, or when creating a new one... hold down the star (*) key for about two seconds and a P should appear

Thank you! That's exactly what I needed.

I know there's something else I wanted to ask about this phone but it escapes me at the moment...