Yes, Grandstream Wave supports audio via Bluetooth headset. If your mobile phone connects with a Bluetooth headset, however, you cannot hang up/terminate the call via Bluetooth headset.

There are several ways to do firmware upgrade on GXP2200.

1. From Grandstream firmware server.
Users could directly upgrade the GXP2200 to the official firmware version using Grandstream firmware server via HTTP. Please point your GXP2200 to firmware.grandstream.com and select upgrade via HTTP and reboot the phone.
2. Upgrade GXP2200 via HTTP/TFTP/HTTPS.
Put the firmware file downloaded from our resources library in a HTTP/TFTP/HTTPS server. Then point the GXP2200 to the corresponding server address to get upgraded.

3. Upload manually via GXP2200 web GUI.
From GXP2200 web GUI->Maintenance->Upgrade, users could select manually upgrading the firmware. Select the firmware file from local directory of the PC and then start uploading.

4. Upgrade via SD card.
- Download the firmware file from our resources library and save it in SD card;
- Insert the SD card to GXP2200 and power cycle the GXP2200;
- When the GXP2200 starts booting up, press and hold both * and # keys at the same time for about 5 seconds;
- The GXP2200 will display the upgrading process in the screen. Wait till the upgrading is done.
- The GXP2200 will reboot itself. Check the firmware status and remove the SD card.

The files such as PDF documents and pictures downloaded from GXV3240/GXV3275 browser will be stored in GXV3240/GXV3275's internal storage. To manage downloaded/installed apps, please go to Settings -> Applications.

By default, the LCD does not have a lock configured. If you have configured the LCD lock and forgotten the user name and password, you will have to perform a factory reset to clear the lock. Log into the web interface, select [Maintenance]→[Upgrade and Provisioning]→[Factory Reset] →[Reset]. After the factory reset, you can also reconfigure the LCD lock password by selecting [MENU]→[Personalize]→[My Profile]. It is recommended not to lock the LCD screen unless necessary.

If you cannot log into the web configuration interface because you do not know the phone’s IP address, then you will need to connect the phone and a PC to the same hub. You can then use a network sniffer tool such as Wireshark/Ethereal on your PC to capture traffic on the network. You can now obtain the phone’s IP address by searching for the corresponding MAC address (found on the back of the phone) in your sniffer (found on the back of the phone).

Grandstream Wave supports BLF, and can be used this way:
a. Go to Settings->Advanced Settings->enable BLA (bridged-line-appearance)
b. Go to "BLA List" -> tap on "+" to add the members -> then, you could check the status of the extensions you want. Only the extensions which are stored in your Grandstream Wave Contacts can be shown in the BLA list.
Note: The BLF works for the account which you choose as the default account. For example, if you choose account 2 as your default account, the BLF will show the status of extensions in account 2.

The BT model 101 (also called BT100) and 102 have the same software functions and the only difference is that model 101 has one Ethernet interface and model 102 has two Ethernet interfaces i.e. the PC port (to be connected to your computer) and normal LAN port (to be connected to your Internet Source.). These 2 ports are bridged together similar to a HUB. BT-200 is higher end version with Router feature and capable of supporting 100Mbps connections.

For first-time users, users have to confirm whether to allow Grandstream Wave to read local call history and import contacts. If allowed, these your contacts will be incorporated within Grandstream Wave.

ANS: Reconfigure the correct time by using network time server to synchronize automatically, or manually configure the correct time and save it.

Video call via external camera will be supported soon. The compatible USB cameras will be supported in video call and Camera.apk (in GS Market) only. GXP2200 doesn't support video call using 3rd party apps.

Yes, but the URL for the station must be valid on the Internet. Select [MENU]→[Multimedia]→[Internet Radio] to load the Internet Radio application. With “My Favorites” highlighted, select [Options]→[Open]→[Open URL] and enter the station URL and save. The station is saved to “My Favorites

Yes, when creating a backup, user will be asked if he wants to backup 3rd party applications as well in a customizable/selective way.

Yes, they can communicate with each other by dialing the respective extension number. Both FXS ports need a valid sip account registered on the server. Route call automatically and transparently to PSTN line according to user configuration

Yes. By default, the Account widget on the GXV3240/GXV3275 idle screen can accommodate 2 accounts. Users can select the widget size for more accounts. Please see steps below:
In the GXV3240/GXV3275 default idle screen, remove the default Account widget first by tapping and holding it into the Recycle Bin on the bottom of the screen.
Press Menu button and select “Edit Widgets”.
In the widget list, chose "Account 5X3" for 6 accounts, choose “Account 3X2” for 2 accounts; or choose "Account 5X2" for 4 accounts.