I know not only me have experienced this. After the heavy rains and flood in the Metro 2 days ago, it was really hard to place a call using my Globe postpaid line. SMS was ok, however placing and receiving calls were impossible. It was past midnight when I was able to use my line again.
Today Globe shared this public advisory to us.

Globe Telecom advises all Globe and TM subscribers that they may encounter some difficulty making and receiving voice calls as well as sending and receiving text messages from subscribers of Sun Cellular. Initial investigation shows a glitch in the interconnection facility of the Cellular Mobile Telephone System (CMTS) of Digitel Mobile Philippines (Sun Cellular). Network engineers from both Globe and Sun are working to restore the Sun-Globe interconnect to its normal level.
As an interim measure, Globe has re-routed voice call traffic with Sun Cellular to an alternate facility to help connect calls to and from Sun Cellular subscribers.

