unix_socket_connect(mtkimsapdomain, volte_imsvt, volte_imcb)
allow mtkimsapdomain volte_vt_socket:dir { read write ioctl open remove_name add_name };
allow mtkimsapdomain volte_vt_socket:dir write;
allow mtkimsapdomain volte_vt_socket:sock_file { create unlink read write };
allow mtkimsapdomain volte_ua:fd use;
#allow mtkimsapdomain volte_ua:udp_socket {connect read write setopt getattr getopt shutdown};
allow mtkimsapdomain volte_stack:unix_stream_socket connectto;

unix_socket_connect(mtkimsapdomain, volte_stack, volte_stack)
unix_socket_connect(mtkimsapdomain, volte_imsa, volte_imcb)