Inbound call limit for ring group

Hi,

does enybody have idea how to set inbound call limit of 1 for ring group:
same = n,Dial(SIP/100&SIP/101&SIP/102,14)
let say if extension 101 is busy, and have limit of 1 call, not to call her inside
upper ring group?

Thx!

GROUP_COUNT() could help you.
forums.digium.com/viewtopic.php? … b3acfd5391

thx for your answer, but how to use it when you have ring group,
were you ring couple of extensions and you dont ring extension already
busy?