Category Archives: Lync 2013

SOLUTION: Users drop from IM conferencing

Applies to Lync 2010 Server Enterprise, Communicator 2007 and Lync 2013 client. Problem: Communicator 2007 client creates a large IM conference more than 100 users. But after sometime, users (including the creator user who invites others to the IM conference) … Continue reading

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SOLUTION:Jabber Users Cannot See Presence and Send Message to Some Lync users in Partitioned Intradomain Federation

Applies to Lync 2010/2013 and IM and Presence Service on Cisco Unified Communications Manager 9.x Many thanks to my colleague Egemen Bakırcı for his valuable support to this post. Problem: You want to setup federation between Cisco CUPS (jabber) anf … Continue reading

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SOLUTION: Peer to Peer audio video Works but does not work in a Lync meeting from Internet

Solution: Peer to Peer voice video works but does not work in a Lync meeting from Internet Applies to: Lync 2013 & Lync 2010 Server Problem: If a Lync client user connects from internet starts voice or video (Lync Call) … Continue reading

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SOLUTION: HTTP 405 Error. Lync Client EWS Not Enabled. No meeting Icon on Lync Client

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Applies to Exchange 2010 and Lync 2013 Desktop Client Problem: All Exchange autodiscovery settings are OK. (Exchange 2010 Autodiscover virtual directory settings, DNS, SSL certificate on CAS server, SANs for autodiscover.sipdomain.com etc). But you still cannot see conversation  history in  … Continue reading

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SOLUTION: Lync 2013 Front End Service cannot start with error C3E93C66

Problem: Lync 2013 Front End Service cannot start with error C3E93C66 after TCP 5060 configuration. By default Lync Front End Service accepts only SIP TLS connections via port 5061. But in some cases (integration with  an existing phone system via … Continue reading

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VCS 8.1. and Lync 2013 HD Video Integration Tested

VCS 8.1. and Lync 2013 HD Video Integration Tested In my previous posts I mentioned about Cisco VCS and Lync 2010 and Lync 2013 Integration Some Important Notes on Cisco VCS and Lync 2010 Integration https://refikunver.wordpress.com/2013/07/19/some-important-notes-on-cisco-vcs-and-lync-2010-integration/ In the following post I wrote … Continue reading

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Cisco VCS 8.1 update now enables Integration with Lync 2013 in HD.

Cisco VCS 8.1 update now enables Integration with Lync 2013 in HD. In this post, Some Important Notes on Cisco VCS and Lync 2010 Integration (https://refikunver.wordpress.com/2013/07/19/some-important-notes-on-cisco-vcs-and-lync-2010-integration/) I mentioned that VCS did not support Lync 2013. Because VCS was not supporting codec … Continue reading

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