Getting Started Guide
Country Specific Outbound SMS
Glossary of Terms in SMS
This forum entry aims to clarify what some acronyms and expressions used in SMS industry actually mean:
– SMS: Short Message Service that allows the exchange of short text messages (maximum 160 characters for one message) between phone, web or mobile communication systems.
Read more about SMS on this link: http://en.wikipedia.org/wiki/Short_Message_Service
– MT: Mobile Terminated message. It might also be referred to as outbound message. This is a message sent from a client application to a Mobile Device.
– MO: Mobile Originated message. It may also be referred to as inbound message. This is a message originated from a Mobile Device towards a Nexmo Long Virtual Number which will be forwarded to your CallBack URL
– DR/DLR: Delivery Receipt, which is provided (upon request) to notify intermediate and final statuses of an outbound SMS. Final DLRs are widely provided but intermediates are dependant on the Network messages are sent to.
– USSD: Unstructured Supplementary Service Data is a session based protocol used by GSM cellular phones to communicate with their service providers. Unlike SMS, USSD messages create a real-time connection during a USSD session. Nexmo approach to USSD is very similar to SMS, offering one way messaging within a USSD session.
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