D-Link DPH-150S

(PhoneB) became disabled on

the network so that I can not get

VoIP services. What can I do to

fix it?

Then, the PhoneB will automatically start to get the VoIP connection and

the associated VoIP services.

It is because that in the factory default settings the DPH-150S has an

integrated DHCP server to assign the IP address of the LAN port with

the IP segment of “192.168.15.xxx”.

That is, for this kind of connection of PhoneA & PhoneB (the WAN port

of PhoneB is connected with the LAN port of PhoneA), the WAN port &

the LAN port of PhoneB will be in the same IP segment

(192.168.15.xxx), which will get the system of PhoneB confused so as to

become disabled on the network. For this reason, we should change the

IP segment of the PhoneA LAN port.