I need assistance with the Cisco 8811 model desk phone. How do you drop a participant from a 3 way call and continue on the line with the remaining person? Can you call me back with your response? I get way too many emails and I might miss your message if you email me. Can you call me at 501-548-9313 and leave a message if I dont answer or you can text me at the number. I tried to get my answer online but the instructions listed options that were not on the phone.