Why NT1 can not show activated status when the network has no traffic in UA5000 ISDN service?
Remark: UA5000 version for this narrowband service is PVU8(V100R011B02D055)
Cause in the packet mode, UA is using the "battery saving mode" as default, and can not config or modify. In the battery saving mode, when the network is idle, no traffic, the NT1 status will be deactivated.
If in the V5 mode, the configuration is on the Switch, UA can do noting with NT1 activated.