(gdb) bt
#0  0x000000000041d30f in ast_bridged_channel (chan=0x7acb60) at channel.c:3315
#1  0x0000000000439ff2 in handle_chanlist (fd=1, argc=<value optimized out>, argv=<value optimized out>)
    at cli.c:431
#2  0x000000000043a991 in ast_cli_command (fd=1, s=<value optimized out>) at cli.c:1390
#3  0x000000000046392d in main (argc=<value optimized out>, argv=<value optimized out>) at asterisk.c:993