[Freeswitch-users] is the example flex client can't receive a call?

Hi All, I just try the example flex client. It can make a call to 888@conference.freeswitch.org But it can't receive a call. Some error message, maybe: switch_ivr_originate.c:2591 Cannot create outgoing channel of type [error] cause: [USER_NOT_REGISTERED] mod_dptools.c:3027 Originate Failed. Cause: USER_NOT_REGISTERED .... rtmp.c:100 [amfnumber=2] Unhandled control packet (type=0x3) Is the example can receive a call? (it is only example, maybe it is incomplete).