I'm using IP Phone D862 provisioned with easybell. My problem is that many calls do abort after a short time. I've got a qualified answer from easybell support that the phone doesn't respond to "200 ok". The recommendation was to set "Use outbound" at SIP/RP → Advanced settings. Unfortunately I cannot find the setting because it seems that the legacy http port 3112 Web Interface (http://local-IP:3112) doesn't work anymore with the last FW releases FW My phone is on the latest snomD862-SIP 10.1.169.13. The only option seems to be the Phone Manager. Even if I look at the "list of all settings" I cannot identify this option. Help would be much appreciated.