User Guide for the SIP-T41P IP Phone42DSS KeysThere are two types of DSS keys: Line Keys and Programmable Keys. The details will beintroduced in the following. The SIP-T41P IP phone supports 15 line keys.Line KeysYou can assign predefined functionalities to the line keys. You can also define a labelfor the line key feature which will appear on the LCD screen. Line keys allow you toquick access features such as call return and voice mail. The line key LED will indicatethe monitoring status when the keys are assigned specific features, such as BLF. Thedefault key type of line key 1-3 is Line. The default key type of line key 4-15 is N/A, whichindicates that this line key provides no functionality.To assign functionality to the line key via phone user interface:1. Press Menu->Features->DSS Keys.2. Select the desired line key, and then press the Enter soft key.3. Select the desired key type from the Type field.4. (Optional.) Select the desired key event type from the Key Type field.5. (Optional.) Select the desired line from the Account ID field.6. (Optional.) Enter a string that will appear on the LCD screen in the Label field.7. (Optional.) Enter the corresponding value in the Value field.8. (Optional.) Enter the corresponding value in the Extension field.9. Press the Save soft key to accept the change or the Back soft key to cancel.You can also configure the line key via web user interface at the path DSSKey->LineKey.NoteYou can assign functionalities to 15 line keys. These 15 line keys are displayed on threepages. When you assign functionality to line keys located in line key 1-6, the labels ofthe line keys display on the first page.The following figure shows an example:When you assign functionality to line key located in line key 7-15, the labels of the linekey 6-10 display on the second page, and the labels of the line key 11-15 display on theWhen the phone is idle, you can also long press the line key to configure it directly on thephone.