Hi AntonKarlan,
1. Chat in Android SFB disappeared.
As you said, the chat will appear at Recent Conversation in the Android SFB client when user start conversation, this is by design, it is a normal behavior. About the chat disappeared, based on my research, it seems this is a bug, you could refer to the
feedback in the SFB feedback website, you could also vote for it and we hope this issue will be fixed in the near future. In addition, I suggest you try to use the latest version of Skype for Business in the Android.
2. Is there any way to make web conference with infinite time of life?
Following are the four types of conference:
a. For a one-time scheduled meeting, the expiry time is the scheduled end time plus 14 days.
b. For a recurring scheduled meeting with an end date, the expiry time is the scheduled end time of the last meeting occurrence plus 14 days.
c. For an ad hoc IM or A/V conference, the expiry time is 8 hours.
d. For a recurring scheduled meeting without a specified end date, the expiry time is 6 months after the last meeting activation.
If you want to make a conference with infinite time of life, you need to check the conference type and follow the rules. Details about this you could refer to the blog:
Lync Conference Expiration and Deactivation Explained
In addition, we suggest users post one issue in a post. The reason why we ask to post multiple issues separately is to facilitate other users with similar problems to quickly and accurately view your posts in the future.
Note: This response contains a reference to a third party World Wide Web site. Microsoft can make no representation concerning the content of these sites. Microsoft is providing this information only as a convenience to you: this is to inform you that Microsoft
has not tested any software or information found on these sites and therefore cannot make any representations regarding the quality, safety, or suitability of any software or information found there. There are inherent dangers in the use of any software found
on the Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software on the Internet.
Best Regards,
Evan Jiang
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