Eliminated before the quarters on the last two editions), the French team, seeded number 1 in these play-offs, inherited an opponent within its reach for this Davis Cup play-off.
Ecuador, which she meets for the first time, was one of the 18 nations present at the last final phase.
Arthur Rinderknech will open the ball against Emilio Gomez (144th in the world).
Adrian Mannarino will then challenge Roberto Quiroz, 30 (381st in the world).
The Mahut - Herbert pair will face Diego Hidalgo and Gonzalo Escobar.