<div>
Try connecting the phone to a known working wall port.
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Try connecting the phone to a known working wall port.

<div>
Is your VOIP vlan on that port (on the switch?)
</div>


Is your VOIP vlan on that port (on the switch?)

<div>
I tried multiple wall jacks, same thing. The switchport is on our voice vlan. I'm trying a factory reset as we speak (write). 
</div>


I tried multiple wall jacks, same thing. The switchport is on our voice vlan. I'm trying a factory reset as we speak (write).

<div>
please show ud the switch config,<br />
<br />
and make reset:<br />
<br />
<br />
press # key and after press 123456789*0# on phone
</div>


please show ud the switch config,

and make reset:


press # key and after press 123456789*0# on phone

<div>
Change the cable from the phone to the wall jack. &nbsp;Plug the phone directly into the switchport if you can to verify the port is good. &nbsp;If it still doesnt come up reset the switchport. verify that the switchport has cdp enabled.
</div>


Change the cable from the phone to the wall jack.  Plug the phone directly into the switchport if you can to verify the port is good.  If it still doesnt come up reset the switchport. verify that the switchport has cdp enabled.

<div>
<div class="content wysiwyg-content">
All,<br />
<br />
I have a Cisco IP Phone model 7941. When I connect it to the wall, I get an error message on the screen that states &quot;Ethernet Disconnected.&quot; The phone doesn't even register with call manager. I tested connectivity from the wall jack all the way to switchport with a Fluke tester and was able to ping and receive cdp packets. Any ideas? Thanks
</div>
</div>


All,

I have a Cisco IP Phone model 7941. When I connect it to the wall, I get an error message on the screen that states "Ethernet Disconnected." The phone doesn't even register with call manager. I tested connectivity from the wall jack all the way to switchport with a Fluke tester and was able to ping and receive cdp packets. Any ideas? Thanks

Ethernet Disconnected

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

Networking Hardware-Other

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

A switch is a device that filters and forwards packets of data between LAN segments. Switches operate at the data link layer or the network layer of the Open Systems Interconnection (OSI) Reference Model and therefore support any packet protocol. LANs that use switches to join segments are called switched LANs or, in the case of Ethernet networks, switched Ethernet LANs. A hub is a connection point for devices in a network. Hubs are commonly used to connect segments of a LAN. A hub contains multiple ports; when a packet arrives at one port, it is copied to the other ports so that all segments of the LAN can see all packets.