How-To send or update registrations.(3) 			    libeXosip2				   How-To send or update registrations.(3)

NAME

       How-To send or update registrations. - eXosip2 offers a flexible API to help you to register one or several identities.

   Initiate a registration
       To start a registration, you need to build a default REGISTER request bby providing several mandatory headers

	 osip_message_t *reg = NULL;
	 int id;
	 int i;

	 eXosip_lock ();
	 id = eXosip_register_build_initial_register (identity, registrar, NULL,
						      1800, &reg);
	 if (id < 0)
	   {
	     eXosip_unlock ();
	     return -1;
	   }

	 osip_message_set_supported (reg, '100rel');
	 osip_message_set_supported(reg, 'path');

	 i = eXosip_register_send_register (id, reg);
	 eXosip_unlock ();
	 return i;

       The returned element of eXosip_register_build_initial_register is the registration identifier that you can use to update your registration.
       In future events about this registration, you'll see that registration identifier when applicable.

   Update a registration
       You just need to reuse the registration identifier:

	 int i;

	 eXosip_lock ();
	 i = eXosip_register_build_register (id, 1800, &reg);
	 if (i < 0)
	   {
	     eXosip_unlock ();
	     return -1;
	   }

	 eXosip_register_send_register (id, reg);
	 eXosip_unlock ();

       Note: The above code also shows that the stack is sometimes able to build and send a default SIP messages with only one API call

   Closing the registration
       A softphone should delete its registration on the SIP server when terminating. To do so, you have to send a REGISTER request with the
       expires header set to value '0'.

       The same code as for updating a registration is used with 0 instead of 1800 for the expiration delay.

Author
       Generated automatically by Doxygen for libeXosip2 from the source code.

Version 3.1.0							  Sun Jun 24 2012			   How-To send or update registrations.(3)