Figure 5: Gxv3370 AccountSip Settings; Figure 6: Gxv3370 Phone SettingsGeneral Settings - Grandstream Networks UCM63 Series Configuration Manual

3. Go to phone's Web UIPhone SettingsGeneral Settings, configure the STUN server to be
same as the one
RemoteConnectPlan page.
Figure 6: GXV3370 Phone SettingsGeneral Settings
4. Go to the phone's web UISystem SettingsSecurity SettingTLS page, configure
"Minimum TLS Version" and "Maximum TLS Version" to be 1.2
Remote Connect EndPoint Configuration Guide
Figure 5: GXV3370 AccountSIP Settings
under UCM Web
UCM630x series
UI Value-added FeaturesUCM
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