Yealink SIP-T42G - Manual (Page 68)

User Guide for the SIP-T42G IP Phone
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The following figures show single or multiple accounts registered on the phone:
Single account:
Multiple accounts:
To disable an account via phone user interface:
1. Press Menu->Settings->Advanced Settings (password: admin) ->Accounts.
2. Select the desired account and then press the Enter soft key.
3. Select Disable from the Account Status field.
4. Press the Save soft key to accept the change or the Back soft key to cancel.
Registering an account is configurable via web user interface at the path
Account->Register.
You can configure multiple line keys to associate with an account. This enhances call
visualization and simplifies call handling.
If this is the case, the LCD screen resembles the following figure:
Incoming calls to this account will be distributed evenly among the available line keys.
Outgoing calls will be distributed similarly.
Your phone can be configured to have a combination of accounts with a single line key
and accounts with multiple line keys.