Glossary Know your SMS from your MMS. Get the lowdown on all the technical terms with our glossary. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # A A2P SMS App notifications Application Programmable Interface - API Attestation B Bulk SMS Bulk SMS - How to send Bulk SMS Marketing BYOC C Call Detail Record - CDR Chatbot Communication Platform as a Service - CPaaS Conversation API D Data Call Delivery receipt Direct Inward Dialing - DID E E.164 Enhanced 911 G Group messaging I Interactive Voice Response - IVR ISO-27001 J Jitter L Long code vs Short code Long codes - 10DLC M MMS - Multimedia messaging service MMS vs SMS MOS Multimedia Messaging Service Center (MMSC) N National Suicide Prevention Lifeline NOC O Omnichannel commerce Omnichannel customer engagement Omnichannel customer service Omnichannel marketing Omnichannel messaging Omnichannel sales Opt-in Over The Top - OTT P P2A messaging Packet Loss PRI PSAP PSTN R Real Time Communication - RTC Real Time Protocol - RTP S SDK vs API Session Initiation Protocol - SIP Short Codes Short Message Peer to Peer Protocol - SMPP Short Message Service - SMS Short Message Service Center - SMSC SIP SMS Latency Software Development Kit - SDK SS7 Network STIR/SHAKEN Subscriber Identity Module - SIM T Text message Three-factor authentication (3FA) Throughput Throughput vs Bandwidth Throughput vs. latency TLS/SRTP Toll Free Number Two-factor authentication (2FA) U UI vs UX Unstructured Supplementary Service Data - USSD User Experience - UX User Interface - UI V Voice over Internet Protocol - VoIP W WebRTC # 911 emergency service
