I used to work in call centres for telcos in Canada.
A) this will be used to hire non Canadian with minimal language skills and will be bad for the local labour market without objection from customers
B) accents are troublesome but the biggest issues were people that don’t have the same cultural standards for things like, not lying, not dumping calls that were hard, or doing a good job with complicated systems and accurately logging cases truthfully.
So many problems are created by poor workers (opps we deleted the customers account, oops I transferred them too you).
These were problems that were so bad they had to have specific cultural training for specific nations to get people to the Canadian standard, and many failed. But hey, cheaper labour!
Now I clean houses, and there is so much competition from people from abroad who are flooding the market and undercutting prices and I don’t get government subsidies to live in a hotel…