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Depending on the IP phones you are using, you should be able to only trunk that ports that link the two switches together. For the rest of the ports, I would suggest the following:
1. Create a VLAN for voice.
2. for each port, assign the voice VLAN to the switchport
switchport voice vlan 41 cos 6 dscp 46 (your cos and dscp values may be different. this is just an example. only the "switchport vlice vlan XX" is required).
This will effectively put your ports in a limited trunk mode. The LLDP-MED protocol will assign the phone to the VLAN when it links to the switch.
You will need to create a VLAN interface or or link an access port to an interface that can route the traffic for that VLAN. Some of that can be done on the 1238P with the latest firmware, assuming it is a 2nd generation. Otherwise you will need your firewall/router to handle that.
I will try this when I get to the office. Thank you!!!
When you say create an interface to the vlan, that is just taking one of the g ports and designating that what type in the gui?
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