Hi, I've been developing an application module in C/C++ for our online personals type of application. All are well until I need to bridge two existing sessions together and need to find a way to monitor DTMF key (*) so I can un-bridge them and hopefully put them back to where they were. Call flow is like: Caller 1 sends recorded message to Caller 2 asking for live connection Caller 1 in a loop of listening to wait music and checking Caller 2 response (via database) (is there a better way like putting caller 1 on hold and somehow signal it from Caller 2's thread?) Caller 2 hears message and accepts (update database) *bridge Caller 1 and Caller 2 *monitor DTMF for asterisk key *un-bridge and send them back to where they were so they can continue to exchange messages with other callers I tried switch_ivr_uuid_bridge function like below: Originator side: switch_ivr_uuid_bridge //set up args so it stops on any dtmf while (switch_channel_ready(channel)) { status = switch_ivr_sleep(session, 60000, SWITCH_TRUE, &args); if (status == SWITCH_BREAK && dtmf_key == '*') break; } Originatee side: //set up args so it stops on any dtmf while (switch_channel_ready(channel)) { status = switch_ivr_sleep(session, 60000, SWITCH_TRUE, &args); if (status == SWITCH_BREAK && dtmf_key == '*') break; } The problem is after switch_ivr_uuid_bridge call, the channel state has changed and switch_channel_ready becomes false and I immediately got out of the loop and eventually exit from the thread. How do I make this work? Any suggestions are appreciated. Thanks. Eddy Chu