when iam trying to set a polling parameters in DFM cisco works lms 2.6 iam getting this error.ERROR! Cannot retrieve the list of groups from the grouping service.Please check the PTMClient.log file for more details. kindly send me the possible cause...

I'm trying to forward all incoming calls to the SRST to the operator extension, but with no luck. I have SRST with FXO ports. Calls from IP Phone to outside work fine. But when calls are coming from the PSTN to the FXOs, they cannot be forwarded to a...