Hi Guys, I haven't seen a thread with this particular issue, so I thought it'd be best to ask. We've recently installed a new 3CX system at our school. We're currently using iPhones (2 x iPhone 5 & 1 x iPhone 6) for our walkaround phones, however, they seem to be having issues maintaining call connections when walking around the school. We've also tried using the app on an Android phone, which appears to have the same issue. While in a call and walking down the corridor. The call will start off clear but will start to lag and then eventually disconnect resulting in the call being dropped. We are currently using a mixture of HP MSM422s & HP E-MSM430s with the firmware version of 18.104.22.168-01-10012 across the board. The iPhones are all connected to the same SSID and are primarily contacting other stationary 3CX phones on the local network. The IPs for the iPhones are all handled by DHCP as well. So we just had a couple of questions. Has the app been designed purely for stationary use so it will latch onto one WAP and not handover to another? Is there anyone else who has a similar wireless system who has this working? If so, were there any resolutions to remedy this issue? If anyone has any advice or pointers, that would be fantastic!