while logging into the web interface of the cisco MCU, am getting NO FREE SESSIONS error, attached screenshot, please help

Hi team,We have a Cisco CUCM v 10.5 deployed and all voice and video endpoints registered to CUCM only, Now I want to integrate Cisco ISDN GW 3241 with CUCM, is it possible ?? ( like the way we add voice gateway ) or will the ISDN GW work stand alone...

Dear team,We have CUCM 10.5, VCS Control, MCU, ISDN GW TMS Infrastructure deployed in one of our customer place. Now Customer asking us for Internet endpoints to be able to join CUCM registered endpoints. But we have got Expressway Edge licenses and ...