During this period, our neighbors don't seem to be having similar problems. But then, they are all on the older 9xx-xxxx telno series. Our line came from a different exchange -- hence, it 425-xxxx.
When I called PLDT to report the problem earlier this week, I was told by the 171 operator that they were experiencing a problem with their "server". I thought that was very strange. Since when did "servers" have anything to do with plain ol' telephone system (POTS) service. If it was a TDM switch that went down, you should not be able to accept both incoming calls and make outgoing calls. And you don't take days to fix a switch. You just hot-swap some TDM card and that's it. Or if its a physical line problem, you basically send a lineman to go up the telephone pole to fix it. But this was something else. A "server"?!
This led me to wonder whether we're on PLDT's Next Generation Network (NGN) which is supposed to be running on their IP-based, "converged" network. I guess new technology brings new kinds of problems.