On CUCM 6.1.3, all incoming calls from the PSTN go to an operator who transfers the call to a group of users, all of whom are in the same Pickup group. Users can pickup the call. When the operator is not there and the call goes directly to all the users, they can hit the Pickup button but the Answer button is not there. Hence, they can not pickup the call. All internal calls work normally. Is there a parameter or a codec to look at? Thanks for any help