[asterisk-users] TLS problem

[hw]

Hi,

I´m trying to get TLS to work with asterisk and client phones,
and all I´m getting from asterisk is


[Aug 23 11:46:42] WARNING[1170]: tcptls.c:673 handle_tcptls_connection: FILE * open failed!
   == Problem setting up ssl connection: error:00000000:lib(0):func(0):reason(0)
[Aug 23 11:46:44] WARNING[1171]: tcptls.c:673 handle_tcptls_connection: FILE * open failed!


when clients try to connect.  No client is able to register using TLS.

How can I use encrypted connections?