Similar to Internet_Protocol_Control_Protocol
 - CalDAVCalDAV
 - 手旗信号システムによるIP伝送Semaphore Flag Signaling System
 - ドメインキーDomainKeys
 - DKIMDomainKeys Identified Mail
 - OpenPGP
 - Stream Control Transmission ProtocolStream Control Transmission Protocol
 - Internet Wide Area RDMA ProtocolIWARP
 - Remote Direct Memory AccessRemote direct memory access
 - Interactive Connectivity EstablishmentInteractive Connectivity Establishment
 - Transport Layer SecurityTransport Layer Security
 - SMTPSimple Mail Transfer Protocol
 - SMTPSSMTPS
- Eml形式.eml
 - PCEP
 - Inter-Asterisk eXchangeInter-Asterisk eXchange
 - 6rdIPv6 rapid deployment
 - 暗号メッセージ構文Cryptographic Message Syntax
 - TURNTraversal Using Relays around NAT
 - ARIA (暗号)ARIA (cipher)
 - YANGYANG
 - RFB ProtocolRFB (protocol)
 - 大気リンク層を用いた地域的ブロードキャスト
- Time-based One-time PasswordTime-based one-time password
 - XCalXCal
 - CardDAVCardDAV
 - VP8VP8
 - WebSocketWebSocket
 - Opus (音声圧縮)Opus (audio format)