I am new to USSD and SMPP. I would like to ask a few questions, please enlighten me.
1. I know that we need Ip number, port number, SMSC account and password to connect to SMSC. I would like to know what devices are required to connect to SMSC? There must be some kind of hardware channel to communicate with the SMSC like modem to connect to internet.
2. I know that we can recieve USSD requests through SMPP. What other options are there to recieve and send USSD requests and response?
3. If there are any other options to send and recieve the USSD strings, what are the advantages and disadvantages of sending USSD strings over SMPP?
Thanks in advance for help.