A lot of the technical problems that you might encounter can be fixed by simply ensuring that you have connected your device correctly and that you are using the correct power adapter for the device, please find down below how to connect all of our devices and the power value required,

Note: Using different power adapter than the one shown might work but it will damage the device.

GS-24P:

• Power: 5V- 1.2A
• Internet: Internet cable.

G1S:

• Power5V – 1.2A
• Internet: Internet cable.
• Phone: Phone Kit.

GFXO:

• Power: 5V – 1.2A
• Internet: Internet cable.
• Phone: Phone Kit.
• FXO Line: Land line cable.

G-150:

• Power: 12V – 1A
• LAN: Internet cable.
• Phone: Phone Kit.

G-156:

• Power: 12V – 0.5A.
• LAN: Internet cable.
• Phone: Phone Kit.

G-157:

• Power: 12V – 0.5A.
• LAN: Internet cable.
• Phone: Phone Kit.
• Line: Land line cable.

Grandstream 287:

• Power: 5V – 1.2A.
• Internet: Internet cable.
• Phone: Phone Kit.

Grandstream 503:

• Power: 12V – 0.5A.
• WAN: Internet cable.
• Phone: Phone Kit.
• FXO Line: Land line cable.

KTA:

• Power: 12V -0.5A.
• WAN: Internet cable.
• Phone: Phone Kit.

KNA:

• Power: 12V – 0.5A
• WAN: Internet cable.
• Phone: Phone Kit.
• FXO line: Land line cable.