About your phone Grandstream GXP2130 Line keys We have 2 line keys, you can have 2 separate conversations of which one is on hold Soft keys depending on what you are doing, different menus will appear on these soft keys Menu/OK key Unordered List Item displays menu of information such as call history, status, contacts, etc. Speaker Allows switching between handset and speaker Volume Volume control for speaker and handset Send Place call after dialing number Message Waiting Flashes red when there is a new voicemail Message Dials your voicemail box Contacts Displays your phone books. The LDAP Directory has the MLC extensions preprogrammed Hold Places a call on hold Navigation keys Navigate through menu options Transfer Transfer call to another number or parking lot Conference Use to create a 3-way conference Headset Switch to headset if connected Mute Mute your speaker, handset or headset If pressed when you are not in a call, this places your phone in the 'do not disturb' mode and sends all call immediately to voicemail Multi-Purpose keys These keys have been preprogrammed as call appearance buttons or busy lamp field (BLF) for office groups allowing you to pick up calls for each other. They are unprogrammed for indidividuals. On classroom phones they have been pre-programmed as speed dial buttons for IT Services, HR, Nurse, etc.