Could be worse... he could be like mine. He has his phone permanently attached, but he never answers it. He's hyper-sensitive about answering phones while in meetings, and he spends a good 3/4 of his day in meetings. Ugh.
After finally freaking him out with a worst-case scenario (broken limbs... car crash... etc) we've worked out a compromise. One of his co-workers isn't quite as meeting heavy as he is, so if I can't get through to my husband I'm to call the co-worker. He will then search out DH and get him to get in touch with me. It's an annoying system, but it's the only way we can get it to work.