IAX rejected connection

Im seeing in my registry that the IAX trunk is registered between the two servers however when I attempt to make calls I receive the following error…

Jun 23 13:56:27 NOTICE[9372]: chan_iax2.c:6796 socket_read: Rejected connect attempt from, who was trying to reach '602XXXxxxx@'

any ideas?

any assistance here please?

turn on debug in your logger.conf, reload logger and then see what else the log gives you.