Restcomm SMSC has 4 different sending modes
Forward and Store (FAS)
Store and Forward (SAF)
Incoming messages will be immediately sent to a destination without being stored in the database.
This is similar to datagram mentioned above, however, a return message (success or failure) will be sent to the originator.
|Datagramm and Transactional have only one message delivery attempt. If message delivery fails, no further attempt will be made to resend the message therefore, the message will be dropped|
Forward and Store (FAS):
In this mode, an immediate delivery is performed. If the attempt fails, the message will be stored into a database and then, periodic attempts at sending the message will be performed.
Store and Forward (SAF):
In this mode, the message will be stored in the database and then, periodic attempts at sending the message will be performed