Are there a number of person here who be able to tell if there determine to be a sms delivery function on OS 4.0. This was an significant thing on my previous phones and each phone had it. At present I am extremely pleased to have my Iphone 3gs in view of the fact that the recent past and I am a diminutive bit sad regarding with the intention of point that there is no alternative for a delivery report. I be able to merely utilize a gsm code, additional than with the intention of is kind of annoying. It has not been announced. SMS delivery reports are a carrier thing. Contact your carrier regarding how to do it.