etc/im_gw.cfg
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 ### ----- IM Gateway [SMS+Jabber] config file for 'bat.iptel.org' ----  
 
 # ----------- global configuration parameters ------------------------
 
 debug=9          # debug level (cmd line: -dddddddddd)
 #fork=yes
 #fork=no
 #log_stderror=no     # (cmd line: -E)
 log_stderror=yes   # (cmd line: -E)
 check_via=yes       # (cmd. line: -v)
 dns=on              # (cmd. line: -r)
 rev_dns=yes         # (cmd. line: -R)
 port=5070
 children=2
 
 # advertise IP address in Via (as opposed to advertising DNS name
 # which is annoying for downstream servers and some phones can
 # not handle DNS at all)
 listen=195.37.77.100
 
 # ------------------ module loading ----------------------------------
 
 loadmodule "../sip_router/modules/sl/sl.so"
 loadmodule "../sip_router/modules/print/print.so"
 loadmodule "../sip_router/modules/tm/tm_mod.so"
 loadmodule "../sip_router/modules/maxfwd/maxfwd.so"
 loadmodule "../sip_router/modules/sms/sms.so"
 loadmodule "../sip_router/modules/textops/textops.so"
 loadmodule "../sip_router/modules/mysql/mysql.so"
 loadmodule "../sip_router/modules/jabber/jabber.so"
 loadmodule "../sip_router/modules/pike/pike.so"
 
 # ----------------- setting module-specific parameters ---------------
 
 # -- sms params --
 modparam("sms","modems","Falcom [d=/dev/ttyS0;b=9600;p=9254;m=new;l=10;r=2]")
 modparam("sms","networks","D1[c=491710765000;m=10]")
 modparam("sms","links","Falcom[D1]")
 modparam("sms","domain","iptel.org")
 modparam("sms","max_sms_parts",3)
 modparam("sms","use_contact",1)
 
 # -- tm params --
 modparam("tm", "fr_timer", 10 )
 modparam("tm", "fr_inv_timer", 10 )
 modparam("tm", "wt_timer", 10 )
 
 # -- pike params --
 # no more than minimum 5 or maximum 5*3 msg per 10 secs - only for sms
 modparam("pike","sampling_time_unit",60)
 modparam("pike","reqs_density_per_unit",5)
 modparam("pike","removel_latency",30)
 
 # -- jabber params --
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 modparam("jabber","db_url","mysql://s2jgw:47s2jgw11@127.0.0.1/sip_jab")
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 modparam("jabber","jaddress","bat.iptel.org")
 modparam("jabber","jport",5222)
 modparam("jabber","workers",2)
 modparam("jabber","max_jobs",10)
 modparam("jabber","delay_time",17)
 modparam("jabber","cache_time",1800)
 
 # -------------------------  request routing logic -------------------
 
 # main routing logic
 
 route{
 
 	# filter too old messages
 	log("LOG: Checking maxfwd\n");
 	if (!mf_process_maxfwd_header("10")) {
 		log("LOG: Too many hops\n");
 		sl_send_reply("483","Too Many Hops");
 		break;
 	};
 
 	# messages too large are denied
 	if (len_gt( max_len )) {
 		sl_send_reply("513", "Riesengross -- Message too large");
 		break;
 	};
  
 	# accept only req coming from iptel.org
 	if (!src_ip==195.37.77.101 |
 	!( uri=~"iptel.org" | uri=~"195\.37\.77\.100" ))
 	{
 		sl_send_reply("403","Forbidden");
 		log("SER:Forbidden request: wrong src_ip or req_uri\n");
 		break;
 	};
 
 	# we are not interested in non-MESSAGE requests
 	if (!method=="MESSAGE")
 	{
 		sl_send_reply("501","Not Implemented");
 		break;
 	};
 
 	# error occured ...
 	if (! t_newtran())
 	{
 		sl_reply_error();
 		break;
 	};
 
 	# do what you want to do -  first, it's for SMS or JABBER ?
 	if ( search("To:.*@icq\.iptel\.org")
 			| search("To:.*@msn\.iptel\.org")
 			| search("To:.*@aim\.iptel\.org")
 			| search("To:.*@yahoo\.iptel\.org") )
 	{
 		### ----- JABBER GATEWAY ------
 		log("MESSAGE received -> sending as JABBER\n");
 		if (jab_send_message())
 		{
 			if (!t_reply("202","Accepted"))
 			{
 				# if replying failed, retry statelessly
 				sl_reply_error();
 			};
 		}else{
 			if (!t_reply("502","Bad gateway - IM error"))
 			{
 				# if replying failed, retry statelessly
 				sl_reply_error();
 			};
 		};
 		break; # End of Jabber
 	};
 
 	### ------ SMS GATEWAY --------
 	# let's block ips that send a lot of request!!
 	if (!pike_check_req() )
 	{
 		break;
 	};
 	# SMS expects only the numbers as follows +<int> <area> <nr>
 	if (!(uri=~"sip:+[^0][0-9]{3}"))
 	{
 		log("SER: invalid number format!!\n");
 		if (!t_reply("502","Bad gateway - invalid number"))
 		{
 			# if replying failed, retry statelessly
 			sl_reply_error();
 		};
 		break;
 	};
 	if (sms_send_msg_to_net("D1"))
 	{
 		# for sending replies, we woun't use the statefull
 		# function because it is not able to add the Contact
 		# header (in fact to add any rpl_lump :-( )
 		# things went well, send ok upstream
 		if (!t_reply("202", "yes sir, SMS sent over"))
 		{
 			# if replying failed, retry statelessly
 			sl_reply_error();
 		};
 	} else {
 		if (!t_reply("502", "Bad gateway - SMS error"))
 		{
 			# if replying failed, retry statelessly
 			sl_reply_error();
 		};
 		break;
 	};
 }