ZyXEL Communications P-2302HWL-P1 Series - Manual (Page 186)

P-2302HW/HWL-P1 Series User’s Guide
186 Chapter 13 VoIP Trunking
Figure 100 PSTN to PSTN Example - Call Rule
13.9.3 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.