An iPhone 4S model compatible with China Telecom’s network has been approved by regulators. The Wall Street Journal reports that an Apple device, model number A1387 — the same number as current iPhone 4S models — was approved by the national telecom regulator’s China Radio Management agency, and is listed as being compatible with CDMA-2000, the same 3G network technology used by China Telecom. As noted in the report, the device…