Call Anytime + Relationship Mod by scumbumbo at Mod The Sims

This mod will put an end to seeing those annoying “John Doe is asleep” notices.
This mod comes in three flavors – you should install only one of them!
CallAnytime – Enables using the phone to chat or invite sims over at any time, day or night.
CallAnytime_ChatLonger – As above, but phone chats will last longer (from 15 to 60 minutes).
CallAnytime_ChatLonger+GainRelationship – As above, but while chatting your relationship level will go up (if they don’t dislike you and only up to a limit)