def dump_call_quality():	global g_current_call		buf = ""	if g_current_call != -1:		buf = py_pjsua.call_dump(g_current_call, 1, 1024, "  ")		write_log(3, "\n" + buf)	else:		write_log(3, "No current call")def xfer_call():	global g_current_call		if g_current_call == -1:				write_log(3, "No current call")	else:		call = g_current_call				ci = py_pjsua.call_get_info(g_current_call)		print "Transfering current call ["+ `g_current_call` + "] " + ci.remote_info		print "Enter sip url : "		url = sys.stdin.readline()		if url == "\n": 			return		url = url.replace("\n", "")		if call != g_current_call:			print "Call has been disconnected"			return		msg_data = py_pjsua.msg_data_init()		status = py_pjsua.call_xfer(g_current_call, url, msg_data);		if status != 0:			py_pjsua.perror(THIS_FILE, "Error transfering call ", status)		else:					write_log(3, "Call transfered to " + url)		def xfer_call_replaces():	if g_current_call == -1:		write_log(3, "No current call")	else:		call = g_current_call				ids = py_pjsua.enum_calls()		if len(ids) <= 1:			print "There are no other calls"			return				ci = py_pjsua.call_get_info(g_current_call)		print "Transfer call [" + `g_current_call` + "] " + ci.remote_info + " to one of the following:"		for i in range(0, len(ids)):		    			if ids[i] == call:				continue			call_info = py_pjsua.call_get_info(ids[i])			print `ids[i]` + "  " +  call_info.remote_info + "  [" + call_info.state_text + "]"				print "Enter call number to be replaced : "		buf = sys.stdin.readline()		buf = buf.replace("\n","")		if buf == "":			return		dst_call = int(buf)				if call != g_current_call:			print "Call has been disconnected"			return						if dst_call == call:			print "Destination call number must not be the same as the call being transfered"			return				if dst_call >= py_pjsua.PJSUA_MAX_CALLS:			print "Invalid destination call number"			return			if py_pjsua.call_is_active(dst_call) == 0:			print "Invalid destination call number"			return				py_pjsua.call_xfer_replaces(call, dst_call, 0, None)		## Worker thread function.# Python doesn't like it when it's called from an alien thread# (pjsua's worker thread, in this case), so for Python we must# disable worker thread in pjsua and poll pjsua from Python instead.#def worker_thread_main(arg):	global C_QUIT	thread_desc = 0;	status = py_pjsua.thread_register("python worker", thread_desc)	if status != 0:		py_pjsua.perror(THIS_FILE, "Error registering thread", status)	else:		while C_QUIT == 0:			py_pjsua.handle_events(50)		print "Worker thread quitting.."		C_QUIT = 2# Start pjsua#def app_start():	# Done with initialization, start pjsua!!	#	status = py_pjsua.start()	if status != 0:		py_pjsua.destroy()		err_exit("Error starting pjsua!", status)	# Start worker thread	thr = thread.start_new(worker_thread_main, (0,))    	print "PJSUA Started!!"# Print account and buddy listdef print_acc_buddy_list():	global g_acc_id		acc_ids = py_pjsua.enum_accs()	print "Account list:"	for acc_id in acc_ids:		acc_info = py_pjsua.acc_get_info(acc_id)		if acc_info.has_registration == 0:			acc_status = acc_info.status_text		else:			acc_status = `acc_info.status` + "/" + acc_info.status_text + " (expires=" + `acc_info.expires` + ")"		if acc_id == g_acc_id:			print " *",		else:			print "  ",		print "[" + `acc_id` + "] " + acc_info.acc_uri + ": " + acc_status		print "       Presence status: ",		if acc_info.online_status != 0:			print "Online"		else:			print "Invisible"	if py_pjsua.get_buddy_count() > 0:		print ""		print "Buddy list:"		buddy_ids = py_pjsua.enum_buddies()		for buddy_id in buddy_ids:			bi = py_pjsua.buddy_get_info(buddy_id)			print "   [" + `buddy_id` + "] " + bi.status_text + " " + bi.uri			# Print application menu#def print_menu():	print ""	print ">>>"	print_acc_buddy_list()	print """+============================================================================+|         Call Commands :      |  Buddy, IM & Presence:   |    Account:      ||                              |                          |                  ||  m  Make call                | +b  Add buddy            | +a  Add account  ||  a  Answer current call      | -b  Delete buddy         | -a  Delete accnt ||  h  Hangup current call      |                          |                  ||  H  Hold call                |  i  Send instant message | rr  register     ||  v  re-inVite (release Hold) |  s  Subscribe presence   | ru  Unregister   ||  #  Send DTMF string         |  u  Unsubscribe presence |                  || dq  Dump curr. call quality  |  t  ToGgle Online status |                  ||                              +--------------------------+------------------+|  x  Xfer call                |     Media Commands:      |    Status:       ||  X  Xfer with Replaces       |                          |                  ||                              | cl  List ports           |  d  Dump status  ||                              | cc  Connect port         | dd  Dump detail  ||                              | cd  Disconnect port      |                  ||                              | +p  Add file player      |                  ||------------------------------+ +r  Add file recorder    |                  ||  q  Quit application         |                          |                  |+============================================================================+"""	print "You have " + `py_pjsua.call_get_count()` + " active call(s)"	print ">>>", # Menu#def app_menu():	global g_acc_id	global g_current_call	quit = 0	while quit == 0:		print_menu()		choice = sys.stdin.readline()		if choice[0] == "q":			quit = 1		elif choice[0] == "i":			# Sending IM				print "Send IM to SIP URL: ",			url = sys.stdin.readline()			if url == "\n":				continue			# Send typing indication			py_pjsua.im_typing(g_acc_id, url, 1, None) 			print "The content: ",			message = sys.stdin.readline()			if message == "\n":				py_pjsua.im_typing(g_acc_id, url, 0, None) 						continue			# Send the IM!			py_pjsua.im_send(g_acc_id, url, None, message, None, 0)		elif choice[0] == "m":			# Make call 			print "Using account ", g_acc_id			print "Make call to SIP URL: ",			url = sys.stdin.readline()			url = url.replace("\n", "")			if url == "":				continue			# Initiate the call!			status, call_id = py_pjsua.call_make_call(g_acc_id, url, 0, 0, None)            			if status != 0:				py_pjsua.perror(THIS_FILE, "Error making call", status)			else:				g_current_call = call_id		elif choice[0] == "+" and choice[1] == "b":			# Add new buddy			bc = py_pjsua.Buddy_Config()			print "Buddy URL: ",			bc.uri = sys.stdin.readline()			if bc.uri == "\n":				continue            			bc.uri = bc.uri.replace("\n", "")			bc.subscribe = 1			status, buddy_id = py_pjsua.buddy_add(bc)			if status != 0:				py_pjsua.perror(THIS_FILE, "Error adding buddy", status)		elif choice[0] == "-" and choice[1] == "b":			print "Enter buddy ID to delete : "			buf = sys.stdin.readline()			buf = buf.replace("\n","")			if buf == "":				continue			i = int(buf)			if py_pjsua.buddy_is_valid(i) == 0:				print "Invalid buddy id " + `i`			else:				py_pjsua.buddy_del(i)				print "Buddy " + `i` + " deleted"				elif choice[0] == "+" and choice[1] == "a":			# Add account			add_account()		elif choice[0] == "-" and choice[1] == "a":			print "Enter account ID to delete : "			buf = sys.stdin.readline()			buf = buf.replace("\n","")			if buf == "":				continue			i = int(buf)			if py_pjsua.acc_is_valid(i) == 0:				print "Invalid account id " + `i`			else:				py_pjsua.acc_del(i)				print "Account " + `i` + " deleted"	    		elif choice[0] == "+" and choice[1] == "p":			add_player()		elif choice[0] == "+" and choice[1] == "r":			add_recorder()		elif choice[0] == "c" and choice[1] == "l":			conf_list()		elif choice[0] == "c" and choice[1] == "c":			connect_port()		elif choice[0] == "c" and choice[1] == "d":			disconnect_port()		elif choice[0] == "d" and choice[1] == "q":			dump_call_quality()		elif choice[0] == "x":			xfer_call()		elif choice[0] == "X":			xfer_call_replaces()		elif choice[0] == "h":			if g_current_call != py_pjsua.PJSUA_INVALID_ID:				py_pjsua.call_hangup(g_current_call, 603, None, None)			else:				print "No current call"		elif choice[0] == "H":			if g_current_call != py_pjsua.PJSUA_INVALID_ID:				py_pjsua.call_set_hold(g_current_call, None)					else:				print "No current call"		elif choice[0] == "v":			if g_current_call != py_pjsua.PJSUA_INVALID_ID:						py_pjsua.call_reinvite(g_current_call, 1, None);			else:				print "No current call"		elif choice[0] == "#":			if g_current_call == py_pjsua.PJSUA_INVALID_ID:						print "No current call"			elif py_pjsua.call_has_media(g_current_call) == 0:				print "Media is not established yet!"			else:				call = g_current_call				print "DTMF strings to send (0-9*#A-B)"				buf = sys.stdin.readline()				buf = buf.replace("\n", "")				if buf == "":					continue				if call != g_current_call:					print "Call has been disconnected"					continue				status = py_pjsua.call_dial_dtmf(g_current_call, buf)				if status != 0:					py_pjsua.perror(THIS_FILE, "Unable to send DTMF", status);				else:					print "DTMF digits enqueued for transmission"		elif choice[0] == "s":			print "Subscribe presence of (buddy id) : "			buf = sys.stdin.readline()			buf = buf.replace("\n","")			if buf == "":				continue			i = int(buf)			py_pjsua.buddy_subscribe_pres(i, 1)		elif choice[0] == "u":			print "Unsubscribe presence of (buddy id) : "			buf = sys.stdin.readline()			buf = buf.replace("\n","")			if buf == "":				continue			i = int(buf)			py_pjsua.buddy_subscribe_pres(i, 0)		elif choice[0] == "t":			acc_info = py_pjsua.acc_get_info(g_acc_id)			if acc_info.online_status == 0:				acc_info.online_status = 1			else:				acc_info.online_status = 0			py_pjsua.acc_set_online_status(g_acc_id, acc_info.online_status)			st = ""			if acc_info.online_status == 0:				st = "offline"			else:				st = "online"			print "Setting " + acc_info.acc_uri + " online status to " + st		elif choice[0] == "r":			if choice[1] == "r":	    				py_pjsua.acc_set_registration(g_acc_id, 1)			elif choice[1] == "u":				py_pjsua.acc_set_registration(g_acc_id, 0)		elif choice[0] == "d":			py_pjsua.dump(choice[1] == "d")		elif choice[0] == "a":			if g_current_call != py_pjsua.PJSUA_INVALID_ID:												py_pjsua.call_answer(g_current_call, 200, None, None)			else:				print "No current call"## main#app_init()app_start()app_menu()## Done, quitting..#print "PJSUA shutting down.."C_QUIT = 1# Give the worker thread chance to quit itselfwhile C_QUIT != 2:    py_pjsua.handle_events(50)print "PJSUA destroying.."py_pjsua.destroy()