API Documentation > SOAP API > Inbound Fax Web Service Reference > Service Endpoint Service Endpoint The inbound fax Web Service WSDL may be accessed at the following endpoint: SSL over HTTPS, port 443 https://ws.interfax.net/inbound.asmx?WSDL
The inbound fax Web Service WSDL may be accessed at the following endpoint: SSL over HTTPS, port 443 https://ws.interfax.net/inbound.asmx?WSDL