what about the C1140 12.4.21a-JA2 , is it affecte by this vulnerability? my WLC version is 6.0.188, if upgrade AP to 15.3.3, the WLC still support?

Call flow as below and there is SIP trunk between the two CUCM clusters.Phone <->CUCM1 <-> CUCM2 <-> CWMSOn CUCM1 SIP trunk to CUCM2, MTP required is not checked, however DTMF relay method is "OOB and RFC2833".The phone could support both OOB and RFC...

Since this is IM only, possible to hide the phone control icon?

Hi my friends,i am currently having some issue with the CAPF function on call manager 8.6. In version 4.x and 5.x (except 5.0), the CAPF can proxy the phone certification sign request to an external CA. But in the new version, I can't find this optio...