15-20 years ago most of the call centers were in India and the challenge was deciphering Indian accents. These days the call centers all seem to be in the Philippines and the challenge is deciphering Filipino accents.
But I'll still take a human being with any accent over some AI.
You can spot a Filipino accent by the elongation of the R in “sir”. It comes out in almost a sing-song manner “Good morning sirrrr”.
(I have an in-house expert as my lovely wife is Filipino) :)