eXosip2 INVITE and Call Management

Functions
int	eXosip_call_set_reference (struct eXosip_t *excontext, int id, void *reference)
	Set a new application context for an existing call. More...
void *	eXosip_call_get_reference (struct eXosip_t *excontext, int cid)
	Get the application context pointer for an existing call. More...
int	eXosip_call_build_initial_invite (struct eXosip_t *excontext, osip_message_t **invite, const char *to, const char *from, const char *route, const char *subject)
	Build a default INVITE message for a new call. More...
int	eXosip_call_send_initial_invite (struct eXosip_t *excontext, osip_message_t *invite)
	Initiate a call. More...
int	eXosip_call_build_request (struct eXosip_t *excontext, int did, const char *method, osip_message_t **request)
	Build a default request within a call. More...
int	eXosip_call_build_ack (struct eXosip_t *excontext, int did, osip_message_t **ack)
	Build a default ACK for a 200ok received. More...
int	eXosip_call_send_ack (struct eXosip_t *excontext, int did, osip_message_t *ack)
	Send the ACK for the 200ok received. More...
int	eXosip_call_build_refer (struct eXosip_t *excontext, int did, const char *refer_to, osip_message_t **request)
	Build a default REFER for a call transfer. More...
int	eXosip_call_build_info (struct eXosip_t *excontext, int did, osip_message_t **request)
	Build a default INFO within a call. More...
int	eXosip_call_build_options (struct eXosip_t *excontext, int did, osip_message_t **request)
	Build a default OPTIONS within a call. More...
int	eXosip_call_build_update (struct eXosip_t *excontext, int did, osip_message_t **request)
	Build a default UPDATE within a call. More...
int	eXosip_call_build_notify (struct eXosip_t *excontext, int did, int subscription_status, osip_message_t **request)
	Build a default NOTIFY within a call. More...
int	eXosip_call_send_request (struct eXosip_t *excontext, int did, osip_message_t *request)
	send the request within call. More...
int	eXosip_call_build_answer (struct eXosip_t *excontext, int tid, int status, osip_message_t **answer)
	Build default Answer for request. More...
int	eXosip_call_send_answer (struct eXosip_t *excontext, int tid, int status, osip_message_t *answer)
	Send Answer for invite. More...
int	eXosip_call_terminate (struct eXosip_t *excontext, int cid, int did)
	Terminate a call. More...
int	eXosip_call_build_prack (struct eXosip_t *excontext, int tid, osip_message_t **prack)
	Build a PRACK for invite. More...
int	eXosip_call_send_prack (struct eXosip_t *excontext, int tid, osip_message_t *prack)
	Send a PRACK for invite. More...
int	eXosip_call_get_referto (struct eXosip_t *excontext, int did, char *refer_to, size_t refer_to_len)
	Get Refer-To header with Replace parameter from dialog. More...
int	eXosip_call_find_by_replaces (struct eXosip_t *excontext, char *replaces)
	Return did (or cid) for the replace header. More...

Detailed Description

Function Documentation

int eXosip_call_build_ack	(	struct eXosip_t *	excontext,
		int	did,
		osip_message_t **	ack
	)

#include <eX_call.h>

Build a default ACK for a 200ok received.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
ack	The sip request to build.

int eXosip_call_build_answer	(	struct eXosip_t *	excontext,
		int	tid,
		int	status,
		osip_message_t **	answer
	)

#include <eX_call.h>

Build default Answer for request.

Parameters

excontext	eXosip_t instance.
tid	id of transaction to answer.
status	Status code to use.
answer	The sip answer to build.

int eXosip_call_build_info	(	struct eXosip_t *	excontext,
		int	did,
		osip_message_t **	request
	)

#include <eX_call.h>

Build a default INFO within a call.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
request	The sip request to build.

int eXosip_call_build_initial_invite	(	struct eXosip_t *	excontext,
		osip_message_t **	invite,
		const char *	to,
		const char *	from,
		const char *	route,
		const char *	subject
	)

#include <eX_call.h>

Build a default INVITE message for a new call.

Parameters

excontext	eXosip_t instance.
invite	Pointer for the SIP element to hold.
to	SIP url for callee.
from	SIP url for caller.
route	Route header for INVITE. (optional)
subject	Subject for the call.

int eXosip_call_build_notify	(	struct eXosip_t *	excontext,
		int	did,
		int	subscription_status,
		osip_message_t **	request
	)

#include <eX_call.h>

Build a default NOTIFY within a call.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
subscription_status	Subscription status of the request.
request	The sip request to build.

int eXosip_call_build_options	(	struct eXosip_t *	excontext,
		int	did,
		osip_message_t **	request
	)

#include <eX_call.h>

Build a default OPTIONS within a call.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
request	The sip request to build.

int eXosip_call_build_prack	(	struct eXosip_t *	excontext,
		int	tid,
		osip_message_t **	prack
	)

#include <eX_call.h>

Build a PRACK for invite.

Parameters

excontext	eXosip_t instance.
tid	id of the invite transaction.
prack	The sip prack to build.

int eXosip_call_build_refer	(	struct eXosip_t *	excontext,
		int	did,
		const char *	refer_to,
		osip_message_t **	request
	)

#include <eX_call.h>

Build a default REFER for a call transfer.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
refer_to	url for call transfer (Refer-To header).
request	The sip request to build.

int eXosip_call_build_request	(	struct eXosip_t *	excontext,
		int	did,
		const char *	method,
		osip_message_t **	request
	)

#include <eX_call.h>

Build a default request within a call.

(INVITE, OPTIONS, INFO, REFER)

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
method	request type to build.
request	The sip request to build.

int eXosip_call_build_update	(	struct eXosip_t *	excontext,
		int	did,
		osip_message_t **	request
	)

#include <eX_call.h>

Build a default UPDATE within a call.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
request	The sip request to build.

int eXosip_call_find_by_replaces	(	struct eXosip_t *	excontext,
		char *	replaces
	)

#include <eX_call.h>

Return did (or cid) for the replace header.

Parameters

excontext	eXosip_t instance.
replaces	buffer to be filled with refer-to info.

void* eXosip_call_get_reference	(	struct eXosip_t *	excontext,
		int	cid
	)

#include <eX_call.h>

Get the application context pointer for an existing call.

Parameters

excontext	eXosip_t instance.
cid	id of the call.

Returns

Application context reference

int eXosip_call_get_referto	(	struct eXosip_t *	excontext,
		int	did,
		char *	refer_to,
		size_t	refer_to_len
	)

#include <eX_call.h>

Get Refer-To header with Replace parameter from dialog.

Parameters

excontext	eXosip_t instance.
did	id of the dialog.
refer_to	buffer to be filled with refer-to info.
refer_to_len	size of refer_to buffer.

int eXosip_call_send_ack	(	struct eXosip_t *	excontext,
		int	did,
		osip_message_t *	ack
	)

#include <eX_call.h>

Send the ACK for the 200ok received.

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
ack	SIP ACK message to send.

int eXosip_call_send_answer	(	struct eXosip_t *	excontext,
		int	tid,
		int	status,
		osip_message_t *	answer
	)

#include <eX_call.h>

Send Answer for invite.

Parameters

excontext	eXosip_t instance.
tid	id of transaction to answer.
status	response status if answer is NULL. (not allowed for 2XX)
answer	The sip answer to send.

int eXosip_call_send_initial_invite	(	struct eXosip_t *	excontext,
		osip_message_t *	invite
	)

#include <eX_call.h>

Initiate a call.

Parameters

excontext	eXosip_t instance.
invite	SIP INVITE message to send.

int eXosip_call_send_prack	(	struct eXosip_t *	excontext,
		int	tid,
		osip_message_t *	prack
	)

#include <eX_call.h>

Send a PRACK for invite.

Parameters

excontext	eXosip_t instance.
tid	id of the invite transaction.
prack	The sip prack to send.

int eXosip_call_send_request	(	struct eXosip_t *	excontext,
		int	did,
		osip_message_t *	request
	)

#include <eX_call.h>

send the request within call.

(INVITE, OPTIONS, INFO, REFER, UPDATE)

Parameters

excontext	eXosip_t instance.
did	dialog id of call.
request	The sip request to send.

int eXosip_call_set_reference	(	struct eXosip_t *	excontext,
		int	id,
		void *	reference
	)

#include <eX_call.h>

Set a new application context for an existing call.

Parameters

excontext	eXosip_t instance.
id	call-id or dialog-id of call
reference	New application context.

int eXosip_call_terminate	(	struct eXosip_t *	excontext,
		int	cid,
		int	did
	)

#include <eX_call.h>

Terminate a call.

send CANCEL, BYE or 603 Decline.

Parameters

excontext	eXosip_t instance.
cid	call id of call.
did	dialog id of call.