Thomas.Poett@TEAMS (MVP Teams and Cross-Tenant M&A/D Migration Expert Lead)

This should be just used as basic approach on how you can support busy on busy. First you can check if the new APPLICATION was installed correctly: The newly created appliance will be loaded during the Frontend server startup procedure and you will be able seeing a not in Event 30253 , indicating the application was included in the loading process. Next important, not to say most important tool ist LOGGING TOOL : Here you will find a pre-defined set towards busy on busy. Generally busy on busy messages look like this example below: Content-Length: 0 Via: SIP/2.0/TLS 192.168.0.13:49887;received=103.12.145.113;ms-received-port=41538;ms-received-cid=9F6B100 From: "User1"<sip:user1@westconlab.com>;tag=8ea09bf2e6;epid=2983f4c267 To: <sip:user2@westconlab.com>;tag=C643D58961F545B Call-ID: 734ea4e359617902c2098433b CSeq: 1 INVITE Server: BusyOptions/6.0.0.0 ms-diagnostics:    1034;reason="Previous hop federated peer did not re...

NOTE: The configuration advice and technical description can be found here: http://lyncuc.blogspot.de/2016/10/busy-on-busy-guide-for-skype-for.html Navigate to the Voice Policy in the Voice Routing Section Here you can enable Busy on Busy on a GLOBAL Policy or based on USER/ SITE policies. Author: Thomas Poett MVP, Business Unit Lead Microsoft Unified Communication 

Some general statements to Busy on Busy: It is only available for user homed on Skype for Business Pool (SE or EE) CU3 must be installed on all Pool Members Not working for user homed on Lync 2013 or SBA. Using Busy on Busy requires a Voice Policy in Skype for Business (Global, Sites or User) Setting Voice Policy in Control Panel: http://lyncuc.blogspot.de/2016/12/enabling-busy-on-busy-within-control.html IMPORTANT: The Busy On Busy feature has an timeout of 12min . If the user got disconnected for a call, e.g he was on disconnected from the network, which can be happened with a mobile phone or if you got connected via Wifi, the busy signal stay active for 12min before it will be reset. As well remember the Busy Options cannot be configured by any user themselves. This is only an administrative task. Busy on Busy supports only three different types: - BusyOnBusy: If the user is on an active call, the busy signal will be played to the caller. - VoiceMailOn...