A wireless networking system and method for wireless network configuration of dual mode wireless networking devices, such as a dual mode cordless telephone base station and one or more dual mode wireless network client devices. The dual mode wireless networking device includes a radio transceiver, a wireless network transceiver and a controller coupled therebetween. The dual mode devices wirelessly exchange network configuration data, via their respective radio transceivers, in response to the initiation of a wireless pairing between the devices by an end user. Within each device, the received network configuration data is transferred from the radio transceiver to the wireless network transceiver. The devices then establish a wireless networking communication or networking link, via their wireless network transceivers, based on the network configuration data exchanged therebetween. Upon such link being established, the client device is associated with the base station device and authenticated within the wireless network.