In my HT701, in the “Advanced Settings” tab, the firmware server path was originally “fongo.firmware.gaps.fibernetics.ca/”, and the config server path was originally “fongo.deviceconfig.gaps.fibernetics.ca/”. I tried to put other values like “127.0.0.1” to both fields, and clicked “Apply”. Even my new value appeared to be saved, but if I go to the “Basic Settings” tab, and do a full reset, the original fongo value will magically come back to these two fields, overwriting my new values. Very frustrating.
The same is true with the “Primary SIP Server” and “SIP User ID” fields in the “FXS Port” tab.
So I guess:
* Either Fongo ( my old VOIP provider ) must hard-burned a custom factory firmware to each individual device before they ship it, (thus these provider-specific values always stay at the local device, impossible to be eradicated ), or;
* HT701 will always quietly revert to a previous value for a field, during a full reset, if the field’s new value is somewhat invalid though syntactically correct, even it appears that it has saved the new value.
Otherwise, how come my HT701 can still remember old value, even if I already overwrite it with a new value?
Can some engineer from Grandstream confirm it?