User manual

8820IP Phone User Manual_ SIP (V1.44)
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§ stanaphone: Use Stanaphone’s SIP system
§ net2phone: Use Net2phone’s SIP system
§ Fwd: Free SIP service; please visit www.freeworldialup.com for
more information.
§ Inphonex: Free SIP service; please visit www.inphonex.com for
more information.
§ sipphone: Free SIP service ; please visit www.sipphone.com for
more information.
§ ngtel: Use NGTEL’s SIP system
§ ayctel: Use Ayctel’s SIP system
§ callserve: Use Callserve’s SIP system
§ qmaster: Use Qmaster’s SIP system
● sip proxy: If “use service” is checked, please set the URI of SIP proxy
server .
● domain/realm: Set the domain name of the SIP proxy server .
● nat traversal: When the IP phone with private IP address need
communicate with other IP phones in a different LAN or on Internet,