Can the local phone number continue to be used when introducing MatrixCloud to overseas subsidiaries?

When switching the customer center of an overseas subsidiary to MatrixCloud, the local phone number can be used as is. 

The phone number can be ported in a manner similar to number portability in domestic phone services. 

[Required Documents Guide]

1. Letter of Agency: Telnyx-LOA.pdf (see attached link below)
2. Recent bill: Local carrier bill for the relevant number

The company information such as the address listed on the bill must match the information entered in the LOA.