when i was in an ldr my bf acted in a similar manner. he was concerned that we were spending more and more time communicating with each other and less time actually getting on with day to day living. i was really upset when he said this as i felt as though i could quite happily spend all day talking to him. i read about other couples who talked endlessly with their SO.
however, i didn't want to lose him so i didn't contact him and let him make all the moves. he did so on a daily basis, whether by email or a couple of texts. we had contact every day just not on the phone.
we have now been married for the last 6 months and living together for 7. i have him all to myself (with the exception of when we are both at work) and i have never been happier.
hang in there if you truly love him.