i am looking for a way, or an app to have custom greetings assigned to different contact. I want to have personalized greetings for friends that may be different than those for business associates.
Youmail (youmail.com) is a good service, phonefusion (phonefusion.com) these are 2 free company that allow you to upload different greetings to play for business, friend or family.
Google voice (google.com/voice)- you can assign different greeting but not able to upload any greetings.
Ribbit mobile (ribbitmobile.com)
and if you are looking for any customize greeting. this company called v-greet pro (vgreetpro.weebly.com) lets you customize your greeting and they will record it for you and send it to in a mp3 or wav file that you can upload on whichever system you choose.
Hope this helps you.