@Michael.D, sizbut was not unpolite (IMHO) but underlined how difficult for everybody is to face continuous hacking which use the standard IP Office options, all forced Avaya to implement security options which we make our job harder day by day. In my IPO I will continuosly see SIP useragents trying to register as Avaya 1120, I know it's a sw engine but is really stressful for all of us to face firewall settings, backdoors, passwords strenghts, end user policies (who the same end user does not share or agree) etc etc.
Please understand, thank you