asterisk users - Jul 2010 - Set Queue to ring in only one member

Hi folks,

I have a queue with 5 members, but I need to ring ONLY ONE MEMBER for 
every call thats arrive to queue. If another call in incoming, they have 
to stay in queue until someone on the queue pickup de call.

Example:

-Queue members-
DAHDI/3
SIP/1000
SIP/1001
SIP/1002
SIP/1003
SIP/1004

A need that all calls thats come to this queue will ring only in the 
member DAHDI, without ring another extensions. When a member 
(SIP/1000,2000, etc) pickup a call, the second call in the queue will 
ring DAHDI again, and again...

If I create a queue with only DAHDI as a members, when I pickup the call 
the reported status of the queue is ABANDON.

If I set the priority to members, like
DAHDI/3,1
SIP/1000,5
SIP/1001,5
SIP/1002,5
SIP/1003,5
SIP/1004,5

The first call rings correctly in DAHDI channel. But when a second call 
arrives and the DAHDI are ringing, this call will ring in the other 
members...

Any hints ?

Best regards,

Alexandre
Aldeia Digital