Comnet SIP trunk setup with Grandstream HT502 ATA (SIP)
The below procedure is tested based on firmware version 1.0.16.2 Login to the web interface. Basic Settings Telnet Server: change from Yes to No to improve security . IP Address: change to static IP. e.g. 192.168.0.20 No need to setup DNS server to avoid auto update. Timezone: update per your actual need. Device Mode: change from NAT to Bridge mode Enable UPnP support: No Enable LAN DHCP: No LAN DHCP Base IP: change to a dummy IP range. e.g. 192.168.20.20 Click Apply to save Then you can connect to the ATA using new IP address Advanced Settings Automatic Upgrade: No Click - Always Skip the Firmware Check Disable Direct IP Call: Yes (to improve security ) NTP server: update as your need. Syslog Server: recommend for troubleshooting Syslog Level = DEBUG for troubleshooting Send SIP Log = Yes FXS PORT 1 Account Active = Yes Primary SIP server = 202.0.179.3 SIP Transport = UDP NAT Traversal = No SIP User ID = 852xxxxxxxx Authenticate ID = 852xxxxxxxx SIP Registration = Yes...