Who Was It?

Somebody call me on my cell phone but I was in the operating room at the time. The caller ID couldn't identify the caller since the number was not stored in my phone book. But it's obvious that the caller was using a landline. I wonder if it's a patient? I wish there was a Nationwide Phone Lookup here in the Philippines that I can utilize so that I can track who it was. It may have been a very important message I've missed.