Signal & Syntax · Messaging and A2P
What Is SMS?
SMS (Short Message Service) is the text messaging service built into mobile networks. One SMS carries 160 GSM-7 characters or 70 UCS-2 characters.SMS (Short Message Service) is the text messaging service built into mobile networks. One SMS carries 160 GSM-7 characters or 70 UCS-2 characters.SMS (Short Message Service) is the text messaging service built into mobile networks. One SMS carries 160 GSM-7 characters or 70 UCS-2 characters.
Also calledShort Message Service · text message
Example
1 SMS = 140 bytes = 160 GSM-7 or 70 UCS-2 characters
SMS in Practice
SMS travels over the operator's signaling network, not the internet. An SMS travels over the operator's signaling network, not the internet. An SMS travels over the operator's signaling network, not the internet. An SMSCSMSC stores each message and forwards the message to the stores each message and forwards the message to the stores each message and forwards the message to the serving networkserving network. Longer messages split into segments, each billed as one SMS. Landlines do not receive SMS as text, so the . Longer messages split into segments, each billed as one SMS. Landlines do not receive SMS as text, so the . Longer messages split into segments, each billed as one SMS. Landlines do not receive SMS as text, so the line typeline type matters before a send. matters before a send. matters before a send.
Where ScoreMachine Fits
Related Terms
Read the Guide
Guide
How A2P SMS Reaches a Handset
The path from an API call to a delivery receipt. Read the guide →Run the Checks on Your Own List
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