Telecoms companies buy a lot of Huawei kit. It's fast and reliable.
They had around a 60 BILLION Dollar turn over last week, so either a lot of Chinese are buying a lot of kit, or people are fed up with the usual vendors.
No they don't, telco's buy a lot of licenses and dslams etc and run their own builds on their own hardware for the element manager and dlm/tr69 servers etc.