Common
- Q: How to use the AES Encryption tool?
- Q:How to update the firmware?
- Q:How to change the time?
- Q: Have DTMF problem?
- Q:During a call, I can not hear any voice?
- Q: Why there is no ring tone when there is an incoming call?
- Q:Can not make a phone call?
- Q:I can’t get the IP address?
- Q:I can not register to the server?
- Q:Network Link Status shown unavailable, what's wrong?