Frequently Asked Question
Yes, you can use this port to connect a second phone to the network; however, you will need to place a PoE injector between the port and the second phone to power the second phone. Some other considerations:
If voice is being tagged by the phone then it might only tag the packets from the first phone. Try to change the data port to use the same tag as the voice VLAN - Not possible on 1.x phones so you must use the native Data VLAN. This has not been tested - you will need to test your own scenario.