I am using Telephony-Service "SRST Mode Auto Provision None". (not call-manager-fallback). CME version 7.0 with 7965 telephones. Router is running c2801-ipvoice_ivs-mz.124-20.T4.bin". Cbarge option only available if ephone is preconfigured with no privacy command.
Seems to be a problem with the ephone not picking up the "no privacy" from the ephone-template configured under telephony-service. Phones register fine but when shared line is in "remote in use" state and you press the button you get a dial-tone. No option for cbarge. I have also configured "no privacy under telephony service with no luck. I can get it to work by preconfiguring ephone with "no privacy" however was curious if this is a known bug or if there is any documentation addressing the issue. Thank you.