Lync 2013 meeting issue

it probably will help to provide some more info. versions of iApp (i assume), how everything is setup (on f5 and lync side), what exact isn't working, does everything else work? what have you already checked?

is your problem similar to: https://devcentral.f5.com/questions/issues-when-deploying-lync-2013-iapp

and of course if you have support just contact TAC.

Echoing what boneyard wrote, it would help if you could provide the Lync client logs, BIG-IP version, iApp version, and the output of tmsh show sys application for your Lync iApp deployment.

Routing is a common issue with Lync deployments. Which clients are having problems: external>external, external>internal, internal>internal?