Hi, I've a problem with WeSIP in B2BUA mode, in case of failed call 4xx-6xx correctly terminated, when i try to send another call to WeSIP i recive a "473 Filtered destination" then for send another call i've to wait WeSIP complete some management with session: 14:10:16 19Mar2007 DEBUG SipConnector [SipProcessor[3]]- recycle: Recycling processor SipProcessor[3] 14:10:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- AppSession Id [B4D6C9C4288784A68E032D20AB78BD8E] with a number of sessions =1 14:10:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- SipSession [z9hG4bK69e6006f] in state [3] with lifetime of :74490 14:10:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- AppSession Id [E3E1D9414BC47572CBC73EC7B4A53531] with a number of sessions =1 14:10:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- SipSession [z9hG4bK69e68616] in state [3] with lifetime of :40281 14:11:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- AppSession Id [B4D6C9C4288784A68E032D20AB78BD8E] with a number of sessions =1 14:11:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- SipSession [z9hG4bK69e6006f] in state [3] with lifetime of :134500 14:11:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- AppSession Id [E3E1D9414BC47572CBC73EC7B4A53531] with a number of sessions =1 14:11:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- SipSession [z9hG4bK69e68616] in state [3] with lifetime of :100291 14:12:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- AppSession Id [B4D6C9C4288784A68E032D20AB78BD8E] with a number of sessions =0 14:12:56 19Mar2007 DEBUG StandardAppSessionManager [StandardAppSessionManager[/inapp]]- Remove AppSession [B4D6C9C4288784A68E032D20AB78BD8E] When i see Remove AppSession i'm able to send another call... I've read the sip servlet spec about that and i'm trying to invalidate() or setExpires() to SiApplicationSession in case of failed call. but it's not clear how to do yet. i can provide the full debug if needed. thank you! regards :tele