However, video would be blocked from the client and any escalation options to a conference would also be unavailable. If the call was an escalation from an existing IM window to another internal person, you would continue to have IM, Application and Desktop Sharing and File Transfer ability. The call must remain a peer to peer call therefore any conferencing options have been removed from the client. While you are using the Call via Work feature several client side features are disabled. The dialed user would receive the call but when they answer they would be met by the users’ voicemail greeting.
For example, if the user had their legacy PBX station set to forward all calls to voicemail the first leg would complete into the users voice mail and the second leg would start dialing. All other mid-call control capabilities are preserved on the legacy PBX handset.ĮXPERT NOTE: The first leg of the call has absolutely no knowledge of the state of the legacy PBX station. Additionally, they will have very simple call control in their Skype for Business client in the ability to hang up the call. Once the call is connected by the dialed party, the users who made the outbound call will have their presence updated to “In a Call”. The end user will hear the familiar outbound ringing on their desk phone. This call could be to the PSTN or to another legacy PBX user. Once the user picks up their desk phone, the Lync server makes a second call from the Mediation Server to the dialed number in the Lync Client. At this point the end users’ desk phone would start ringing. First, the Lync Server makes an outbound call from the Mediation Server to the telephone number of your legacy PBX.
#Call failed internal skype to skype call series
When the end user places an outbound call from their Lync client a series of events are put into motion. Which is good since it worked fine before.Ĭall via Work is a solution for outbound dialing where the end-user would like to continue to use their Legacy PBX handset. Jamie Stark says that SBC’s are supported for Call Via Work now. Microsoft won’t support this implementation for obvious reasons but know that it will work.
However, this is simply two Enterprise Voice calls pinned back to back on the Mediation Server and therefore using a gateway/SBC to a TDM based legacy PBX absolutely works in my testing.
EXPERT NOTE: As of the writing of this document Microsoft only supports a Direct SIP connection to the PBX.