Unfortunately, Skype for Business doesn’t give you any control or options for selecting a different method. The solution is to force the external user to use Skype for Business Web App. Either way, if you know a couple of things that I am going to share, you can get this external user connected to your meeting fairly easily, even from a non-federated domain.
#CANT JOIN SKYPE MEETING AS GUEST DOWNLOAD#
Even if she doesn’t have the Skype for Business client installed, she may not know exactly which client she should download and install.
#CANT JOIN SKYPE MEETING AS GUEST FULL#
Because she has the Skype for Business client installed on her computer, the client automatically attempts to join her using the full Skype for Business client, rather than Skype for Business Web App. The reason she is unable to join your meeting is that she is part of a different, non-federated domain and is trying to join a meeting in your domain as an authenticated user. She already has Skype for Business installed on her computer but she is unable to join the meeting. You create a Skype for Business meeting request and send it to an “external user” that is not part of your domain. Either way, if you know a couple of things that I am going to share, you can get the external user from a non-federated domain connected to your meeting fairly easily. In some cases the individual on the other end (the external user) may not have Skype for Business installed and they are unclear as to which client they should install. When the Skype for Business client is installed on a computer it will automatically attempt to join using the full Skype for Business client, rather than Skype for Business Web App. This is due to the fact that they are part of a non-federated domain and are trying to join a meeting in your domain as an authenticated user.
Things can especially get confusing for people who are trying to join your meeting and have a version of Skype for Business installed but they are not part of your company. If you want to know more about different Skype for Business clients, check out my article The Many Versions of Skype for Business. There are multiple versions of Skype and there are just too many possible scenarios where users may have issues joining a meeting. I won’t list all the possible scenarios in this article that may cause problems, instead I will focus on the solution for a common scenario. Depending on various factors, external users may have problems joining the Skype for Business meeting, or they may not have a Skype for Business client installed on their computer.
You can also use Skype for Business to communicate with external users that are not part of your company’s network. It looks like there is no way to avoid launching the application if it's actually installed, or to sign in as a guest.There are several advantages for using Skype for Business for instant messaging, video conferencing, audio conferencing, and screen sharing with other team members within your organization. The issue: someone invites you to a meeting, but you don't have a Lync/SfB account, thus you need to join the meeting as an external guest by clicking on the meeting link you received however, the application is actually installed on your computer, as part of the Office 2013 package in this scenario, clicking the meeting link will automatically launch the application, but then it will get stuck on asking you for sign in information, which you don't have. I've stumbled upon a bizarre problem with Skype for Business 2015 (the client application, previously known as Lync 2013 but automatically upgraded to SfB 2015 by some Office update) maybe I'm missing something, but I'm unable to find a solution, hence this question.