Ok, I have 3 Cisco 504G phones at a front desk that all ring simultaneously on incoming calls. No problem. However, what they want is no matter what phone they pick up the call from, they want to be able to put the call on hold and pick it up from any of the other two phones just by pushing a button. I'm thinking a sidecar and using bxfer to parking orbits is best option, but they want to know if there is a way without the side cars. I played around with SLA and configured each phone to have all three extensions on it and set to Shared instead of private. Then when incoming calls came in they could see someone was on ext 101 on all 3 phones. When 101 placed call on hold, it could then be picked up on either extension 102 or 103 phone with push of a button. I thought, great it worked. Not so fast. After a little while the extensions started showing blinking red but there were no calls. When you hit the button it said "SharedLine Process". Is there something I missed? Maybe I should scrap the idea and just get the Cisco 500S and setup BLF for Parking orbits for all 3 phones? Thoughts?