You have to use border device to integrate Teams and CUCM. For example: https://www.audiocodes.com/media/14373/connecting-cisco-cucm-with-teams-direct-routing-enterprise-model-using-mediant-sbc-configuration-note.pdf
Hello!Can you say version VTP?Enabling VTP pruning on a VTP version 3 switch enables pruning only on the switch that you enable it on. VTP pruning is not propagated as it is with VTP version 1 and VTP version 2.