I have spent hours and hours today trying to resolve this issue. Tengo
been through all the items in this attachment. The only thing that I
noticed is that under the part of the attachment entitled "If you see a
red exclamation point" (which is what I get) It says to tap "Send as
Text Message". I don't have that choice. When I tap on the exclamation
point the only choices that come up are "Try Again" and "Cancel"
So far, nothing I've tried has worked.