Cisco ip phone spa502g инструкция на русском
The Cisco ® SPA 502G is a 1-line desktop IP phone with display, 802. 3af Power over Ethernet (PoE), and PC port. It includes a full-duplex speakerphone with. Сценарий установки соединения на основе протокола H. 323 SIP (Session Initiation Protocol) SIP — протокол.