I have all over but can not find the answer.
can anyone help me with this issue. I have a small office installation of asterisk. What i would like to happen on a PSTN call to have all four phones ring (that has been accomplished) but at the same time i would like one of the phones to ring silently on external calls only. interoffice calls should ring normally but outside callers will be silent.
Thank you for any help in this matter.