Product MPN
Key Features
IP Wireless Phone can be patched in to a wireless network via it's own wireless network card. IP Video Phone is for use in video conferencing. These models allow you to see as well as hear person(s) on the other end of the line. IP Wireless Video Phone gives you the convenience that a wireless network provides and allows worldwide video calls.
Interfaces
This describes the type of wire connection the phone uses to connect to other network devices. Make sure this type is compatible with existing network devices.
Networking Connectivity
RJ 45 - 10/100 Base-TX (Ethernet)
Standards and Protocols
VoIP signaling is the protocol used to communicate between the phone and other network devices. Make sure this is compatible with existing devices on your network.
VoIP Signaling Protocol
H.323, SIP
These are the network protocols supported by the phone. These protocols provide the phone a 'language' for communication with the network. Make sure this attribute is compatible with existing network devices.
Codecs are what encode and decode the audio or video signal over your phone. Generally the most popular are G.711. Most importantly, make sure the standard is the same as other devices it needs to communicate with, as all codec standards are not compatible.
These are different types of services that phones offer, such as the ability to put calls on hold, call waiting, and caller-ID.
Supplementary Service
Call Transfer (H.450.2), Call Hold (H.450.4), Call Pick-up (H.450.5), Call Waiting (H.450.6), Message Waiting Indication (H.450.7), Name Identification (H.450.8), Call Intrusion (H.450.11)
QoS stands for quality of service. For the most basic audio telephone service, lower qualities are fine. As you require more capabilities of your phone (such as streaming video), high QoS becomes more important.
QoS
IEEE 802.1p/Q, DiffSer
Miscellaneous
This is how the device gets power. Many devices are powered through their connection to the network (for example, through the USB cable). Others are powered through an AC adapter.
Power Source
Power over LAN / IEEE 802.3 af / PoE
Some IP phones come with extra features such as a phonebook, SMS messaging, or a built in answering machine.
Additional Features
Speaker
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