Hi, im new to pana PBX

i have a NS700 - V7 software - SIP lines and IP handsets NT680 - we are using SVM. I have created a PS (ext280) forwarded to 591.

My customer would like calls to come into the main huntgroup and if calls are not answered after 4 rings go to voicemail.

i have the users to ring on the main number and added 280 in the member list but does not trip to 280 after 4 rings.

is someone able to point me in the right direction.