The VLR alerts the user's terminal and verifies whether it is connected to the network (in coverage area);
The VLR responds to the MSC with the user status and, if operational, location information (part of the BSS to which it is connected);
The MSC informs the SMSC that the message has been delivered and can special lead be deleted from its database;
Optionally, the destination SMSC responds to the originator of the message (usually the source SMSC) with a message delivery notice.ok
How to take advantage of the 160 characters of an SMS?
The limitation of the size of messages makes necessary that is approved by users and that allows to communicate a lot with only 160 characters. From short links to the absence of periods and grammatical separators, these are characteristics in the use of SMS. SMS is the "telegram" of this era, with the advantage that this telegram reaches the recipient within seconds of being sent and can be answered instantly, at a very affordable price or often included in the cost of the plan.