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Welltech WG2504 FXS V.4.02 User Manual

Page 69

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Appendix C--- WellGate 2504 (4-FXS) and WellGate 2540(4-FXO)

in peer to peer mode with hotline by port to port application.

Purpose

This paper is going to describe how to configure FXO to FXS in

peer to peer

mode with hotline function

to link from one desire port at FXO via SIP IP link

to remote FXS desire port. This application is widely used to extend traditional
PABX extension from one location to remote office via IP Link which could be
VPN, Private network, fiber link or Wireless network. Here is an typical
diagram of this application at Figure 1.

Figure 1.

Before start to configure of both FXO and FXS gateway, we have assigned the
following parameters to both devices as follows.

Please note that both IP

addresses at FXO and FXS gateway’s WAN port should be able to see each
other. Both FXO and FXS gateway CAN NOT install behind Router or Firewall