TLS SIP socket Error

What is following error?
[Feb 6 09:41:33] ERROR[24923]: tcptls.c:375 ast_tcptls_client_start: Unable to connect SIP socket to xxx.xxx.xxx.xxx:5060: Connection refused

Asterisk Version = 1.8.2, Ubuntu 2.6.32-21-server. xxx.xxx.xxx.xxx = IP of peer.

This is a duplicat and has already been answered.