What should I do?

My SO and I are in a long distance relationship for over 6 years, due to him being in the military. We don't get see each other much, maybe once a month or sometimes not even that. Anyways we were talking on the phone and he tells me he doesn't like talking on the phone and he doesn't like texting all the time. What should I do? Should I lay off texting him all the time? We barely talk on the phone as it is now. We talk on the phone maybe once a week or sometimes never. It's just weird lol.