Currently for those areas in the mainland without international direct dial service (ISD), users can first call the C &W special number, which will relay the call to the mainland.

• 目前大陆尚未开放国际电话用户直接拨号（ISD）的地区，用户可先以国际拨号方式，拨叫香港大东局专设的电话号码，再由大东局值机员纪录后转接大陆。