When hubby and I were apart for 3 months when I was pregnant with our second child we each set up webcams that we could activate remotely. I had mine in the living room where I was with our daughter and he had his in his bedroom (he was sharing a house with others and spending most of his time in there). If I was too busy in the daytime to be able to talk or chat online he could just peek at us and feel like he was there.
We also tried really hard to make sure we got to chat every evening, and we worked hard to make it a time of really staying close so we thought during the day about what we wanted to talk about and had 3 months of sharing secrets and thoughts on everything. That was the beginning of our radical honesty in our marriage. I found that 3 months hard but it was the beginning of something wonderful.