AP-VP150 Video Phone Installation and Operation Manual, Edition 1.00
AddPac Technology Proprietary & Documentation
205 - 34
Connection of PSTN Cable Interface
The PSTN port is used if a PSTN cable is used or a call cannot be made due to a network
failure. You can connect a PSTN cable to the AP-VP150 PSTN port in order to implement
PSTN backup. As shown in the figure below, connect a PSTN cable:
(Figure 3-3) Connection of PSTN Cable Interface to AP-VP150