Knowledgebase

Do Not Disturb

To enable DND, press the mute button on your phone while not on a call. The DND icon will appear on the phones' screen.

To disnable DND, press the mute button on your phone while not on a call. The DND icon will disappear from the phones' screen.

Grandstream offers a number of different phone models, with slightly different hardware...

Feature Codes

Feature Codes Voicemail Voicemail: *123 General Voicemail: *124 Voicemail Transfer: *125...

Lock Keypad

Press and hold the star (*) key until the LOCK symbol shows on your screen. This will then lock...