Static Dynamic Host Configuration Protocol (DHCP) and VoIP phone systems

What is a Static DHCP?

Static DHCP assignment means the DHCP server assigns the same IP to the defined MAC address every time the device is connected to the network. The DHCP server serves the reserved IP address when the device using the corresponding MAC address requests an IP address.

Why do I need to assign a Static DHCP to my VoIP hardware?

Assigning a static DHCP to VoIP handsets will ensure that the device will keep the same IP if the router goes offline for extended periods.

This will prevent the IP from being blacklisted and blocked by bOnline.

How to assign a Static DHCP to bOnline-issued routers:

Zyxel – VMG1312-T20B:

• Navigate to "Networking" and select "Home Networking".

• Click "+Static DHCP Configuration".

• Click the "Select Device Info" drop-down and select the device you would like to assign the Static DCHP to.
• Click the "Activate" toggle and turn it on.

• Click "OK".

Zyxel – VMG1312-B10D:

• Navigate to "Networking" and select "Home Networking".

• Select "Static DHCP".
• Click "Static DHCP Configuration".
• Click the "Select Device Info" drop-down and select the device you would like to assign the Static DCHP.
• Click the "Enable" toggle and turn it on.

• Click"OK".

Static IP vs Static DHCP:

A static IP address (also known as a fixed or dedicated IP address) is just as the name suggests: one that doesn’t change, even if you restart.

This is assigned to the router itself, whereas the Static DHCP is assigned to a device connected to the router.

For further assistance please get in touch with our onboarding team at voipcare@bonline.com