Alpha Sender IDs are support but numeric Sender IDs maybe overwritten to generic Alpha Sender IDs to ensure delivery. We recommend you to send your SMS with Sender ID that represents your band or company.
Operators are heavily filtering on spam and sensitive keywords in content, for example, "police" is prohibited to be mentioned in SMS content.
Other Features or Restrictions
DLR status are not reliable.
For more information, see the following articles: