Sender ID:
Sender ID on all Taiwan networks will be changed to a randomised Taiwan number.
Content:
$@[\]^_`{|} symbols would be changed to triangle signs △ as advised by telco. Alternatively, bracket symbols < > are supported.
There are no additional content restrictions beyond those in our Acceptable Use Policy
Unicode:
Unicode is supported.
Concatenated messages:
Concatenated messages are supported.
Other features/restrictions of note:
Delivery Receipts:
Delivery Receipts are not guaranteed, and are not generated at a handset level, therefore may not be a reliable measure of delivery.
Links:
Global SMS Features Overview (Outbound only)
Global SMS Numbers Features Overview