Untitled Note

Customers have Internet Access: Yes Make and Model: Cisco CP8861 EXT and DL #: Ext.814 Reset to Factory: Yes MAC/SN: 0029C2883F6C IP address: 192.168.1.39 Manual Provisioning SIP Domain sip.ringcentral.com:5060 Remote SIP port 5060 Local SIP port 5060 Outbound Proxy SIP10.ringcentral.com:5090 Outbound Proxy Port 5090 User Name 16199081803 Password k0sLI3qoe Authorization ID 804314283004 Unable to access the Cico Web GUI interface. We have tried to access the web interface using https://, http://, IP address alone, we have tried using multiple browsers, tried incognito mode, we have tried different computers and the same results, the computers are connected to the same network as the phone according to the cx. I advised the cx to check with an IT the network settings but he said the network settings have nothing to do with it because the browser is reading the Cisco logo advised the cx to carry the device home and test in house's network to isolate it , probably something is blocking it.