电信初学者费率管理：从零到英雄

Telecom Basics for Beginners: Zero to Hero

VoIP, eSIM, SMS, and DID reselling business setup, pricing, scams, and scaling — broad telecom industry knowledge with a fast, free path into reselling through 6X.

Billing Strategy for Telecom Beginners: Zero to Hero

Pricing models, payment gateways, fraud prevention, and revenue optimization — general billing strategy for running any telecom reselling business.

PBX Basics for Beginners: Zero to Hero

Business phone systems — extensions, IVR menus, call queues — general industry knowledge, since a white-label PBX resale product isn't part of 6X's wholesale account.