4 ms·
I was going to ask "Source?" but decided to look it up for myself. For anyone else reading this: cynicalkane is right, sms messages "travel on the SS7 network
by peter_l_downs 14y ago
I was going to ask "Source?" but decided to look it up for myself. For anyone else reading this: cynicalkane is right, sms messages "travel on the SS7 network in tandem with voice call signaling traffic" [0]. For a great overview, read this HowStuffWorks article [1].
[0] http://www.ncs.gov/library/tech_bulletins/2003/tib_03-2.pdf http://www.ncs.gov/library/tech_bulletins/2003/tib_03-2.pdf (this whole bulletin is pretty interesting: it discusses the fact that SMS service is often maintained even while voice service is down, such as on September 11th 2001).
[1] http://computer.howstuffworks.com/e-mail-messaging/sms.htm http://computer.howstuffworks.com/e-mail-messaging/sms.htm
- malkarouri 14y agoIs that still valid? I mean, after GPRS, MMS and various technologies in this area it might not be as bad as originally implemented.
- alttab 14y agoIt's still valid like XP is still valid. Legacy is called legacy for a reason.
- sopooneo 14y agoMMS just works by sending an SMS message to the receiving phone with a url pointing to a stored copy of whatever the original message payload was. http://en.wikipedia.org/wiki/Multimedia_Messaging_Service#Technical_description http://en.wikipedia.org/wiki/Multimedia_Messaging_Service#Te...