User manual

3. Standard Compliances
The VS211 VoIP TA supports for the following standards
VoIP Protocol: IETF RFC3261 and RFC 2543 for SIP
SIP Authentication: IETF RFC2069 and RFC 2617 for MD5
Speech Codec: ITU-T G.711, G.723, G.729A/B, VAD and CNG
Echo Cancellation: ITU-T G.165/168
4. Packing Contents
Inside the package you should find:
(1) One VS211 SIP TA
(2) One AC to 12VDC/1A Power Adaptor
(3) One User Manual CD
Please check if the packing is damaged or any component is missing. If so, please contact
your distributor.
5. LED Indicators
On the front panel of VS211, there are three LED indicators as the following
POWER: “On” indicates the power is normal
PHONE: “Green On” indicates the Phone is in use (off-hook) for VoIP call.
“Red On” indicates the PSTN Line is in use or ringing from incoming call.
“Yellow On” indicates the Phone and the PSTN Line are in use for PSTN call.
“Green Flashing” indicates successful registration at SIP server.
“Yellow Flashing” indicates PSTN incoming call with successful SIP registration.
LAN: “On” indicates the Ethernet port is in Connection.
“Flashing” indicates the data activity of Ethernet port.
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