How does the users MMS experience compare to that of SMS?
SMS messages are not delivered in real time because they follow the ‘store and forward’ model. All SMS messages first get sent to the SMSC (Short Message Service Centre) from where they are routed to the recipient. Like SMS messages, MMS messages are also not delivered in real time. However the actual interaction in the delivery of MMS messages is different from that of SMS. SMS message delivery is quite simple – SMS messages get sent first to the SMSC and if the SMSC can deliver the message immediately to the recipient, the message is sent to them. MMSC (Multi Media Service Centre) performs an analogous function to the SMSC for the purposes of this discussion.