I. INTRODUCTION
SMSC: stands for the Short Message Service Center and is part of the telecommunications network to deliver the SMS.
SMPP: stands for the Short Message Peer-to-Peer (SMPP) and it is a protocol which is used to exchange the SMS between SMSC and SMS application system. There are various versions of SMPP, including 3.3, 3.4 and 5.0.
II. SYSTEM ARCHITECTURE
III. COMPONENTS
1)
BEARERBOX
This is the core
component and which should be initialized first to start the connection with
the upstream smsc. The bearerbox holds all smsc connections and passes outbound
message to one of the connected smsc’s based on the smsc-id. It has normally
2 listening ports assigned to it (ports can vary):
- Port1:
this is the generic Kannel administration port, which
belongs to the "core" component of Kannel.
- Port2:
this is the communication port towards the SMS Box component.
2) OPENSMPPBOX
OPENSMPPBOX handles the SMPP speciļ¬c
communication to the clients. Opensmppbox
connects to the smsbox-port of a bearerbox. It features an SMPP server port for
incoming client connections. Accounts are configured in Opensmppbox to allow connections
only from specific clients. The SMS is forwarded to Bearerbox, which routes it
to the best available SMSC’s over a variety of protocols.
3) SMSBOX
This component is just to
interact with your third party application. Smsbox is the service which interacts
between our application and bearerbox. ie, it receives incoming sms from our
bearer box and sends it to our application and vice versa. It provides an http
service to send the SMS through the bearerbox. If the sms is coming via smsbox,
smsbox forwards it to bearerbox which delivers it to its destination using a
smsc connection.
NOTE:In general
scenario, a full system contains the following boxes:
opensmppbox, sqlbox, smsbox and bearerbox.
If the sms is received by
opensmppbox, which forwards it to sqlbox and then sqlbox sends it to bearerbox
which delivers it to its destination using a smsc-connection
If the sms is coming via
smsbox, smsbox forwards it to sqlbox and then sqlbox sends it to bearerbox
which delivers it to its destination using a smsc-connection
Smsbox has an http interface
to send sms and smppbox has an smpp interface to send sms. So http users use smsbox
and smpp users use smppbox
ie, for smsbox users : smsbox----sqlbox----bearerbox
For smpp users : smppbox---sqlbox----bearerbox
