Hello!

I work on a enterprise that has a SIP T20-P, in order for me to configure it and test my AsteriskNow I need to proceed with some customization on the phone itself, though I found a problem.

Our Internet Service Provider is also the provider of the phones and has managed to remotely make the upgrades and the username/password is not admin/admin. I tested some other possible passwords but no use.

I need to manage the phone on it's own webpage, but since I can't enter I thought about upgrading the firmware and would be clean of the ISP configurations, but what I discovered so far is that I need to log into the webpage of the phone and upgrade it through there.

In order to avoid some answers:

I already reseted to the factory - Firmware has been changed by the ISP so... it runs with their username and password.

I already gave them a call in order to give me the username and password, I am paying a equipment that it seems that is still not mine... no use through there too... they did not gave me information that I required.

In order to avoid router management to the phone, I connected the phone to my computer and set his IP manually... I connected but password was requested and no use, it was not admin/admin, even with reset to factory.

All help on this matter is welcome.
You have my thanks, best regards.