Chapter 12 VoIP Trunking

Figure 133 PSTN to PSTN Example - Call Rule

12.9.3 Configuration Details: Incoming

The branch office ZyXEL Device needs to have an incoming authentication account configured. This consists of a username and password. This account must match the username and password of the outgoing authentication account of the headquarters’ ZyXEL Device. This can be configured in the VoIP > Trunking > Peer Call screen.

Figure 134 PSTN to PSTN Example - Incoming Authentication

12.9.4 Call Progression

The call is initiated by the manager dialing into the headquarter’s ZyXEL Device via PSTN. In this scenario a VoIP link is established between headquarters and the branch office and then the call is forwarded to Sales1 using PSTN.

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P-2602HWLNI User’s Guide