What does Call of Attrition mean?

Call of Attrition meaning in Urban Dictionary

When a cellular phone telephone call drops down, the ensuing tries to call each other straight back on both edges leads to limitless straight-to-voicemail phone calls, involved signals, more dropouts... it is simply useless.Adapted from the term "war of attrition", for which both forces put on one another down over an extended time frame, causing small success for either.