I have CUPCs 7.0.2 configured on CUCM 6.1.2 and Presence server 6.0.4.
I don't succeed in getting started a conference initiated by the SIP softphone in CUPC. The voice conference is ok, instead, when started from a CUPC in desktop phone mode. In this last case the dsp resources of the conference bridge (a Voice GW) are correctly reserved and the conference is OK. Has anyone ever had this issue? Is SIP protocol responsible for the matter? The conference bridge is a Cisco 2811 with c2800nm-advipservicesk9-mz.124-22.T.bin IOS version.