Type: Wireless IP phones can be connected to a wireless network via their own wireless network card. IP Video Phones Used for audio conferencing, these models allow you to see and hear your contacts. These phones combine the advantages of a wireless network and the ability to place video calls anywhere in the world.
Interfaces
Interfaces Audio / Video: This is the type of connector for audio and video signals. You can use external devices like set-top boxes, televisions and other devices receiving video and audio signals using connectors. You can have sound, image, and save them using the phone.
Standards and Protocols
VoIP signaling protocol: The signal is the VoIP protocol used for communications between the phone and other network devices. Make sure therefore that it is compatible with your network devices existants.SIP Additional service: These types of services offered by the phone, like the possibility of a call, to receive two calls at once, or display the name of the caller. Call Forwarding (H.450.2) Call Hold (H.450.4)