| Subject | English | Vietnamese |
| comp., MS | Session Initiation Protocol | Giao thức Khởi tạo Phiên (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 | kết nối chính Giao thức Khởi tạo Phiên (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) |