PLANET VGW-400FO - Manual (Page 9)

4-Port SIP Internet Telephony Gateway
VGW-400 Series
Secure, High-Quality VoIP Communication
It can effortlessly deliver secured toll voice quality by utilizing cutting-edge 802.1p QoS (Quality of
Service), 802.1Q VLAN tagging, and IP TOS (Type of Service) technology. Using voice and data VLAN
can easily separate the data and voice, thus maintaining the best quality.
Supporting Caller ID
Both the FXS and FXO ports of the VGW-400 series support caller ID function, help user identify calling
number easily and verify number. It also helps to block anonymous call by filtering strange calls. The
FXS port transmits Caller ID, while the FXO port receives Caller ID. The Caller ID interoperates with
analog phones, public switched telephone networks (PSTN) and private branch exchanges (PBXs).
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