All Sender IDs in messages sent to Bangladesh Citycell (47005) will be changed to a local Number (with countries prefix added) to ensure message delivery, as the network is heavily filtering on Sender IDs.
For all other networks alphanumeric senders are supported but numeric senders maybe changed to a local numeric
Operators are heavily filtering on spam and sensitive keywords in content,
e.g "police" is prohibited to be mentioned in SMS content.
Other features/restrictions of note:
DLR status are not reliable.