Advanced Phone Features125According to the response message from the server, the IP phone will automaticallyconfigure the BLF List keys beginning from the first unused Line key. Once any Line key isseized, the IP phone will skip to configure the next Line key.You can receive a visual or/and an audio alert (if enabled) on your phone when themonitored user receives an incoming call. For more information, refer to Busy Lamp Field(BLF) on page 121.NoteYou can record calls by pressing a record key on the phone. The SIP-T23P/G IP phonesupports record and URL record.Two ways of call recording: Record: The phone sends SIP INFO message containing a specific header “Record:on/off” to trigger a recording. URL Record: The phone sends HTTP URL request to trigger a recording. Contactyour system administrator for the predefined URL.NoteTo configure a record key via phone user interface:1. Press Menu->Features->DSS Keys.2. Select the desired DSS key.3. Press or , or the Switch soft key to select Key Event from the Type field.4. Press or , or the Switch soft key to select Record from the Key Type field.5. (Optional.) Enter the string that will appear on the LCD screen in the Label field.6. Press the Save soft key to accept the change or the Back soft key to cancel.Call record is not available on all servers. Contact your system administrator for moreinformation.The pickup code is used in the following order of preference:BLF List Pickup Code (Account->Advanced)>Directed Call Pickup Code(Account->Advanced)>Directed Call Pickup Code (Features->Call Pickup). If all of themare not configured, pressing the BLF List key will directly call the monitored user whenhe/she receives an incoming call. For more information about pickup Code, refer to CallPickup on page 115.