Yes, I am guilty

I've heard many people talking about how the art of the phone call or the hand-written letter is dying a slow and terrible death. I won't lie, I'm guilty of contributing to the impending extinction.
There are two people who I will regulary have phone calls with; Mare, and Mum. That's it. Everyone else is simply contacted by one of the many digital communication tools at my disposal. Ranging from a quick email, to a message or wall-posting on facebook, to a text message, these are my chosen mediums.
While it is admittedly far-less personal to use these methods, it seems faster and less intrusive. If I'm imposing on someone's day, I'd rather do it at their convenience. A text message to their cell can be ignored until they feel like dealing with it, as can a message or email or wall-posting. Maybe it's an insecurity of sorts, and using an impersonal method of communication makes me feel like I'm not going so far out on a limb.
The downside to this removal from verbal conversation is that I start to feel slightly anxious when it comes down to actually speaking with someone on the phone. I think I'm afraid of being an inconvenient intrusion.
Anyway, if I haven't called you in a while, sorry. Send me a text and we'll do lunch!