Double call sip attach to a queue

Hello !

Sorry for my english !

Have you got some informations or some solutions for the problem
of double call on sip attach to a queue?

My Sip phone is a IP10S SWISSVOICE and all the call (internal and external) are deposed in the queue !!!

My version asterisk is 1.2.15 whith the components associated !!

thanks for help !!