For the best experience turn off the battery saving mode.

Glossary

One-Way SMS

One-way SMS is used when messaging application needs only one-side communication to the user and this means in one-way sms neither a short code nor a long number is required.
The number from what the message comes or originator of the message or sender can be set to an alphanumeric string e.g. with a brand name but it is determined by rules and regulations in specificcountry. The user cannot reply to one-way kind of messages.