Looking for help from certified Cisco Engineer 7/30 @ 10amEST

Job ID: 34247541

Budget: $25 – $50 USD

Having problems with Yealink phones connected to Cisco switches on multiple VLANs. I believe the problem is related to CDP however I am not the best with Cisco. Only HIGHLY qualified, decent English-speaking, Cisco engineers, please.
Related categories: System Admin Linux Cisco VoIP Network Administration