FAQ | What are some common reasons that may be causing me to have trouble registering my Q-SYS system with the Cisco CUCM call manager?

Find out what steps to take when attempting to register a Q-SYS system to Cisco CUCM, as well as common reasons behind failed registrations.

Updated at June 8th, 2023

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Table of Contents


Below are some very common reasons that cause Cisco CUCM registration problems.

  • There is more than one Q-SYS softphone and they don’t have the same user name.
  • The Q-SYS softphone(s) is not pointed to the CUCM subscriber server.
  • The Q-SYS softphone(s) is not using UDP 5060 transport..