Grandstream Phones

To start a 3-way conference call on a Grandstream phone, press the conference button, which has an icon of three people. This will bring up the conference dialing screen where you can dial the third party's number and press send. Once the third party is on the line, press the Conf/Call softkey to initiate the 3-way conference. This allows you to easily add a third party to an existing call.

To factory reset a Grandstream GXP21XX phone, press the center button to access the menu and select System. Then, choose Factory Functions and select the Factory reset option. Confirm the reset by pressing the Yes softkey, and the phone will clear its memory and reboot. This process may take a few minutes to complete.

To manually configure auto provisioning on Grandstream IP phones, you need to enter the provisioning URL if the phone was not purchased through VentureTel or its partners. This is done by logging into the phone's web interface, going to Maintenance and then Upgrade and Provisioning, and entering the Config Server Path and Config File Postfix. The Config Server Path is p.venturetel.co/kazoo-provision/prov/grandstream and the Config File Postfix includes a password found in the VentureTel portal. After saving and applying changes, the phone will auto provision after a reboot or by selecting Provision from the top of the screen.