Definition of MT and MO
MT
MT (Mobile Terminated)
message transmission from a client (program) or an application to the end user’s handset.
MT messaging service is widely used in different fields :
1.Flight / Booking alerts and confirmations
2.Banking (transaction alert, balance update, password change etc)
3.Ads and coupons (promotional)
4.Verification messages (Registration codes for apps)
MO
MO ( Mobile Origination)
message transmission from a handset device to a client (program) or application.
MO service is often used as part of 2-way SMS service (MT/MO combination).
In this case, companies send MT message first and receive a response from the end user.
Example :
MT : To unsubscribe from this newsletter reply STOP.
MO : STOP (it will automatically be forwarded to the MT sender)