My daughter is going to switch to IP phones, Polycom VVX 250 at her small business. She has a SG500x-24 switch and a SG300-28 switch. I am trying to figure out Smartport and Telephony OUI. How do I know which one to use and what are the advantages of each? Can you please help? The SG500x-24 is running in L3 mode if that makes a difference.
I am thinking with Telephony OUI I must create a VLAN where Smartport creates a VLAN automatically. If I use Telephony OUI and create a VLAN do I assign a network to the VLAN since I am using the switch in L3 mode and all VLANs currently have networks assigned to them?
If I add IP phones to the second switch how do I maintain Telephony OUI across switches and still have priority for IP phones? Do I use a trunk port and define the same Voice VLAN on both switches?