I Have Issue With My Customer .
Issue Explain : My Customer Has Cisco Collaboration Cluster ( CUCM Publisher and Subscriber, IM&P, Expressway C & E ) and Running Cisco Jabber Application Over Smart Phone but We Can't Login .
Scenario From Jabber Mobile : Jabber Mobile ( From Any Internet ) >> Public DNS & Public Domain With Cloud Flare ( My Customer Solution ) >> My Customer Edge Firewall >> Expressway - Edge >> Expressway Core >> Cisco Unified Communication Manager
I checked Expressway-E Ports Opening ( 5060, 5061, 8443 ) and I Can Ping But I Can't Login From Smart Phone .