Only expect a tiny minority of your members, customers, supporters or donors to take part in your online conversation, even it is really good.
I am quite puzzled as to how it happened that, out of less than 400 members of our credit union, nearly 50 are _volunteers_. That is much more than 10%, and has to be some kind of record for participation.
According to the properties some people need to make phone calls with their mobile phones most of the time, while on the contrary some people should stay in the peaceful condition to continue their work. So it is necessary to use the signal jammers to solve the problem of the phone calls and noises for the people who in need of the peaceful working condition.