Readme for reg_agent module

This module uses the registrar_client to register the contact
sems@<local_ip>:<sip_port> at a SIP registrar. The accounts 
(identities) are set in the config file.
If the registration is not successful, it tries to 
re-register.

This module depends on the registrar_client module.

Loading uac_auth module is needed if the registration should
be authenticated!
