The whole phone thing with Popularity sims is a pain! (Easy with AutoYak, but I haven't tried that since NL - has anyone?)
I had heard it wasn't working with NL, but was getting so sick of being called every two seconds by idiots wanting to know why I hadn't called (my main is a Romance sim who has a rather large number of....errr..."romance partners"), I threw the hack in anyway. No problems so far.