Welltech WG2504 FXS V.4.02 - Manual (Page 53)

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CH8 SIP Trunk
The administrator needs to set the SIP trunk for VOIP outgoing call
and incoming call. There are up to 4 SIP trunk can be used for whole
system.
Figure 8-0 SIP Trunk setting
 Trunk ID: SIP trunk ID 1 to 4
 Register Type: Register type is predefine or register
 TEL No: The Tel no for the SIP account
 Proxy Server: The SIP proxy server
 Proxy Server port: The SIP proxy server port
 Outbound Proxy: The SIP outbound proxy sever
 Outbound Server Port: The SIP outbound proxy server port
 Export: To backup the SIP Trunk records.
 Import: To reload setting of SIP Trunk.