Hi,
I am holding a KX-T7730...it is needed to lock the 00(ISD) calls....Can anyone help me in this regard
The 7730 doesn't do anything. The cabinet the phone is plugged into does. It can be one of about 18 models that Panasonic makes and it has programming rules under TRS (toll restriction). For example, in some models, if you change your extension COS (Class of Service) to 7, it can't dial long distance. In others, you have only 5 COS and you have to build all tables..
In the simplest case, you need to find a programming manual for the particular system and review the section on TRS. In that, you will start by putting 00 in a class from 2-5 and then change the COS of the extension to match. There are other rules like Allow in COS 2 will allow all Allow codes entered in TRS 2-5, but that's for another day.
If you find a model of the cabinet, I can get you pointed in the right direction. I will not build your tables :-)
Carl
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