News
When the FXS port and SIP server are disconnected, the call is automatically sent to the FXO PSTN line for outbound calls, providing a high-reliability guarantee for the customer's voice communication in the building elevator.
1. The new FXO gateway 2 registers to the SIP server through the Internet, and the call box connects to the FXO gateway 2 through the analog phone line.
2. The two FXO gateways in the same local network.
3. Using the active-standby function of the FXO gateway 2, when the SIP server is not accessible, the calls will be sent to the FXO gateway 1 connected to PSTN.
Solution Value Proposition
Cost Saving
Help migrate legacy building call box to the cloud and save cost on PSTN connectivity
Wiring Free
Preserve existing wiring and call box, compatible with most call box models
Time Saving
Unified call hang up mechanism across different call box brands
Easy to use
Simple, scalable and secure for installation, configuration and operation
Tel:021-61202700 / 52217917
Address:5/F Block B, Building 1, No.188 Pingfu Road, Xuhui District, Shanghai 200231, China
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