ACTUALLY Now realise the question you ask is different from the solution/issue I report on here, that after I unlocked my Cisco phones they still wouldn't work properly with the BT VOIP service (I say service but really it should be called a 'disgrace'). See below for what i remember about unlocking:
Oh, I didn''t really solve it - turned out that the BT service uses proprietary code in their VOIP service, so we could never get the Ciscos set up properly. Furthermore the solution BT had sold me was duff, they hadn't listened to my needs and requirements (one of which was multiple extensions able to transfer calls etc, which the simple BT service couldn't do).
Instead I cancelled the BT service and got back all the line charges etc as they agreed it had been misrepresented. I then subscribed to a VOIP service provider called Voipfone, based in London Docklands, who got me up and running in about 20 minutes from start to finish, using the Ciscos!!! I cannot praise their levels of service and knowledge enough, I have converted all our company's lines into VOIP and use them, it is cheap and excellent. If you want more info just give me a shout.
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Admin username and password.
I am struggling to remember what I did now. I think it was making a complete factory reset, after which I think there is no password you just point browser at <ip address>/admin
But how did I do a reset when it is protected by the password that has been set? I think I found a series of commands to put in the phone directly (rather than via browser) to reset it. Sorry for my confusion but it was over a year ago. It is certainly do-able, because I managed it.
But I stand by my answer above, seriously, bin BT and go to VOIPfone (or another 3rd party offering full hosted sip, my experience with them has so far been excellent.
