How To Fix T5171 - User &1: No authorization for extension &2 + server &3

SAP Error Message - Details

• Message type: E = Error

• Message class: T5 - SAPphone: Messages for telephony

• Message number: 171

• Message text: User &1: No authorization for extension &2 + server &3

What causes this issue?

User &V1& is not authorized to select the extension &V2& of the
telephony server &V3&.

How to fix this error?

Check whether the work center extension and the telephony server have
been specified correctly for this user.
If the specifications are correct, inform the administrator responsible
so that they can authorize the assignment between this user and this
extension/telephony server combination for the site.

Error message extract from SAP system. Copyright SAP SE.