Running FS 1.2.12 in the following environment: FS Ext <---> FS SBC <---> FS Int I can successfully make calls in both directions. If the caller hangs up, the other end correctly hangs up. However, if the callee hangs up, the caller session remains active until the RTP timeout kicks in. Here's a snippet from the FS log where this occurs (1004 is the caller and 2010 is the callee) [NOTICE] sofia.c:716 Hangup sofia/internal/2010@10.1.1.206:5061[CS_HIBERNATE] [NORMAL_CLEARING] [NOTICE] switch_ivr_bridge.c:1109 Hangup sofia/internal/1004@10.1.1.204[CS_HIBERNATE] [NORMAL_CLEARING] [NOTICE] switch_core_session.c:1560 Session 4 (sofia/internal/ 2010@10.1.1.206:5061) Ended [NOTICE] switch_core_session.c:1564 Close Channel sofia/internal/ 2010@10.1.1.206:5061 [CS_DESTROY] [NOTICE] switch_core_session.c:1560 Session 3 (sofia/internal/ 1004@10.1.1.104) Ended [NOTICE] switch_core_session.c:1564 Close Channel sofia/internal/ 1004@10.1.1.104 [CS_DESTROY] I've tried setting hangup_after_bridge=true in the dialplan on FS Ext. I wasn't 100% sure whether it should go on FS Ext or FS SBC, so I tried both and it made no difference. What else should I be checking? Thanks Peter