He would say he would call on a certain night and most of the times he did but sometimes he didn't and it drove me crazy! I'm sure it had lots to do with my insecurity post D and my lack of dating experience. Anyway - I would "hint" that he had forgotten to call and he would say he got busy or whatever. Until the time he forgot the cottage number and I nearly went nuts wondering why he didn't call. But I did not phone his hotel. I figured - he had said HE would call. So I did not do it. And we went several days with no contact (ok - not a long time but we did speak every other night at that point). Anyway - when he finally did get hold of me on my cel I acted non-chalant and it made him worry a bit that I was as into him as he was into me. And since then (7 years ago) he has NEVER missed a call.
There were other things that he wasnt so good at in the beginning but have really improved over time and me letting him know. Let me know if you want me to tell you more.