Issue was BPDU guard......The dell has it on globally while the BPDU guard is per port basis on the Cisco switch we were replacing. I turned off the global BPDU guard and my settings worked great. :-)   Final settings for the IP phones UC320W and Dell N1524P switch to work were as follows for all ports: switchport voice vlanspanning-tree bpdu flooding ip igmp snooping unregistered floodall interface Gi1/0/1spanning-tree portfastspanning-tree guard loopswitchport mode generalswitchport general allowed vlan add 100 taggedswitchport voice vlan 100storm-control broadcastexit
Hey Guys, I was hoping someone has a solution to a current issue I have in regards to a Dell N1524P Switch and a Cisco UC320W IP Phone Controller. I have the Dell switch set up as below on all ports:- Port Mode General - Untagged traffic is VLAN 1 - Data - Tagged traffic is VLAN 100 - IP Phone - Global command for Voice VLAN is activatedAlso the switch is configured with ISDP which allows CDP traffic to be compatible. When I look at the ISDP neighbor table it sees the devices using CDP protocol.  " switchport mode general switchport general allowed vlan add 100 tagged voice vlan 100"Data traffic gets sent to the Dell Sonic Wall while the Voice traffic goes out the WAN port of the Cisco UC320W which has it's own dedicated line for voice. I found an article that states Port Fast should be on, I will be trying that in a couple days when back on site. The switch is replacing an older Cisco ESW-540-24P where currently the IP phone system works. Any ideas?Thanks so much guys!
Dell N1524P Switch & Cisco UC320W Configuration