Problems with IP Phones registration to CUCME on SG200-50P
Hi Artur, the macro for IP phone + desktop is defining the port for voice vlan tagged, data vlan untagged. Sometimes the spanning-tree portfast doesn't trigger depending on the phone and in some cases causes phones to go in to a reboot loop or simple not intiailize.
But essentially what you're telling me is the switch has no configuration for voice. There may also be a negotiation issue between the switch and the HWIC.
But with that aside, if your symptom is the same as that post in your initial posting, try to downgrade the firmware to 220.127.116.11
This firmware did not support a lot of features. So you can try to dumb down the switch manually or basically back-rev firmware to the point the switch loses features. I would ultimately think the phone has a problem since it seems other phones (Cisco 3905 CSCub09465) have the same bug report with LLDP.
-Tom Please mark answered for helpful posts
Please mark answered for helpful posts
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