I have this error pop up on some end users randomly since installing jabber 11.7 on CUCM 10.5.2 while an end user clicks to call from outlook tel:xxxxxxxxxx link and only from with in outlook. end users are using outlook 2010.  restarting jabber reli...

did you get this working, having similar issue with websense and all the trouble shooting is pointing to WCCP redirect. will be updating the ASA to see if it fixes the issue.currently on 9.1.1

same issue on 10.x. Secondly I can call the contact (without adding) but cannot IM either. No presence status either.also in HA and when i do a manual failover I am able to add the contact and IM.

http://www.cisco.com/en/US/docs/voice_ip_comm/cups/8_0/english/install_upgrade/deployment/guide/dgclient.html#wpxref55446CUPC 8.x uses Cisco Service Framework CSFCUPC 7.x uses Cisco Unified Personal Communicator UPC

any updates on this?