Problem: When we lose power and upon power restored happened, the default value of QoS does change to Zero, why? When the default value change to zero, we experience a delay or echo during conversation voice calls.
Workaround Solution: To reset the QoS default value, connected OOMA with an Ethernet cable to plugged into the HOME NETWORK port. Now navigate to the Tools tab, then select System and locate 'Reboot' at the top of the page, manually rebooted OOMA. After a successful reboot of OOMA, the QoS value goes back to 1024 Kbps. Perfect!
Can someone take a look at the firmware version and make necessary updates that, when we lose power the QoS default value should not change to zero, it should keep the original value.