| Subject | English | Chinese Taiwan |
| comp., MS | Session Initiation Protocol | 工作階段初始通訊協定 (A standard signaling protocol for establishing multi-media communications sessions between two or more users over an IP network) |
| comp., MS | Session Initiation Protocol trunking | 「工作階段初始通訊協定」主幹連線 (A mechanism for connecting the voice network of an enterprise to a service provider that offers public switched telephone network (PSTN) origination, termination, and emergency services without deploying PSTN gateways) |