One of the features of Huawei HG655b router / home gateway / residential gateway (RGW) is ability to failover internet connection to USB mobile broadband. This RGW has main capability for internet service (HSI), Voice over IP (VOIP) and IPTV (connected to Set Top Box). It also support for ADSL and VDSL connection.
I had opportunity to test all the functionality before release to our (QTel) customer, but this time i will write how i tested RGW fail over to USB mobile broadband. (currently Qtel customers are using Thomson modem for their ADSL connection)
- open router admin GUI in web browser, type http://192.168.1.1
- type your username and password (default: admin/admin)
- select Basic configuration and go to WAN. Type APN, username, and password of your mobile broadband service. Figure below shows mobile broadband configuration. It also describes that i am still connected to internet thru DSL connection.
- now, disconnect (unplug) your DSL line/cable then router will automatically fail over the connection to USB modem. First it will be authenticating then connected. See figure below.