OpenSIPs B2BUA Server

opensips_b2bua.cfg

####### Global Parameters #########

#debug_mode=yes

log_level=3
log_stderror=no
log_facility=LOG_LOCAL0

children=8
#tcp_children=32
check_via=no
rev_dns=off

/* uncomment the following lines to enable debugging */
#debug_mode=yes

/* uncomment the next line to enable the auto temporary blacklisting of 
   not available destinations (default disabled) */
#disable_dns_blacklist=no

/* uncomment the next line to enable IPv6 lookup after IPv4 dns 
   lookup failures (default disabled) */
#dns_try_ipv6=yes

/* comment the next line to enable the auto discovery of local aliases
   based on reverse DNS on IPs */

auto_aliases=no

listen=udp:127.0.0.1:5060 AS 8.8.8.8:5060 ### Customize Me
#listen=tcp:127.0.0.1:5060 AS 8.8.8.8:5060 ### Customize Me
#listen=tls:127.0.0.1:5060 AS 8.8.8.8:5060 ### Customize Me

#tcp_max_msg_time=10
#tcp_connect_timeout=350
#sip_warning=0
#tcp_connection_lifetime = 3600
#tcp_keepalive=0

####### Modules Section ########

#set module path
mpath="/usr/local/lib64/opensips/modules/"

#### SIGNALING module
loadmodule "signaling.so"

#### StateLess module
loadmodule "sl.so"

#### Transaction Module
loadmodule "tm.so"
modparam("tm", "fr_timeout", 15)
modparam("tm", "fr_inv_timeout", 48)
modparam("tm", "restart_fr_on_each_reply", 0)
modparam("tm", "onreply_avp_mode", 1)

#### Record Route Module
loadmodule "rr.so"
/* do not append from tag to the RR (no need for this script) */
modparam("rr", "append_fromtag", 0)

#### MAX ForWarD module
loadmodule "maxfwd.so"

#### SIP MSG OPerationS module
loadmodule "sipmsgops.so"

#### FIFO Management Interface
loadmodule "mi_fifo.so"
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
modparam("mi_fifo", "fifo_mode", 0666)

#### URI module
loadmodule "uri.so"
modparam("uri", "use_uri_table", 0)

#### MYSQL module
loadmodule "db_mysql.so"

#### AVPOPS module
loadmodule "avpops.so"

#### ACCounting module
#loadmodule "acc.so"
/* what special events should be accounted ? */
#modparam("acc", "early_media", 0)
#modparam("acc", "report_cancels", 0)
/* 
   by default we do not adjust the direct of the sequential requests.
   if you enable this parameter, be sure the enable "append_fromtag"
   in "rr" module 
*/
#modparam("acc", "detect_direction", 0)
#modparam("acc", "db_url",
#	"mysql://opensips:opensipsrw@localhost/opensips") # CUSTOMIZE ME




#### DISPATCHER module
#loadmodule "dispatcher.so"
#modparam("dispatcher", "db_url","mysql://user:password@127.0.0.1/database") ### Customize Me
#modparam("dispatcher", "ds_ping_method", "OPTIONS")
#modparam("dispatcher", "ds_probing_mode", 0)
#modparam("dispatcher", "ds_ping_interval", 30)

####  MI_HTTP module
#loadmodule "mi_http.so"

loadmodule "proto_udp.so"
#loadmodule "proto_tcp.so"
#modparam("proto_tcp", "tcp_send_timeout", 2000) 
#modparam("proto_tcp", "tcp_max_msg_chunks", 8)

#loadmodule "proto_tls.so"
#loadmodule "tls_mgm.so"
#modparam("tls_mgm","verify_cert", "1")
#modparam("tls_mgm","require_cert", "0")
#modparam("tls_mgm","tls_method", "TLSv1")
#modparam("tls_mgm","certificate", "/usr/local/etc/opensips/server.pem")
#modparam("tls_mgm","private_key", "/usr/local/etc/opensips/server.key")
#modparam("tls_mgm","ca_list", "/usr/local/etc/opensips/server.pem")

#### B2B_Entity ####
loadmodule "b2b_entities.so"
modparam("b2b_entities", "script_req_route", "b2b_request")
modparam("b2b_entities", "script_reply_route", "b2b_reply")
modparam("b2b_entities", "b2b_key_prefix", "B2B1")
modparam("b2b_entities", "db_mode", 0)
#modparam("b2b_entities", "replication_mode", 0)

#### B2B_Entity ####
loadmodule "b2b_logic.so"
modparam("b2b_logic", "init_callid_hdr", "Init-CallID")

loadmodule "uac_auth.so"
####### Routing Logic ########


# main request routing logic

route{
	 xlog("L_INFO","[$fU $tU $ci $rm] Request Received from $pr:$si:$sp User-Agent:$ua");

	if (!mf_process_maxfwd_header("10")) {
		send_reply("483","Too Many Hops");
		exit;
	}

	if (has_totag()) {

		# handle hop-by-hop ACK (no routing required)
		if ( is_method("ACK") && t_check_trans() ) {
			xlog("L_INFO","[$fU $tU $ci $rm] Relaying Request to $ru");
			t_relay();
			exit;
		}

		# sequential request withing a dialog should
		# take the path determined by record-routing
		if ( !loose_route() ) {
			# we do record-routing for all our traffic, so we should not
			# receive any sequential requests without Route hdr.
			send_reply("404","Not here");
			exit;
		}
/*		
		if (is_method("BYE")) {
			 xlog("L_INFO","[$fU $tU $ci $rm] BYE ");
			# do accounting even if the transaction fails
			#o_accounting("db","failed");
			
		}
*/
		# route it out to whatever destination was set by loose_route()
		# in $du (destination URI).
		route(RELAY);
		exit;
	}

	#### INITIAL REQUESTS

	# CANCEL processing
	if (is_method("CANCEL")) {
		if (t_check_trans())
			t_relay();
		exit;
	}

/*
	if ($rU==NULL) {
		# request with no Username in RURI
		send_reply("484","Address Incomplete");
		exit;
	}
*/
	t_check_trans();

	# preloaded route checking	
	if (loose_route()) {
		xlog("L_ERR","[$fU $tU $ci $rm] Attempt to route with preloaded Route's");
		remove_hf("Route");
	}

	if(is_method("REGISTER")) {
		$ru=$du;
	} else if (is_method("INVITE")) {
		$du="sip:{Remote Carrier IP}:5060";
		$ru= "sip:" + $tU + "@{Remote Carrier IP}:5060" ;
		xlog("L_INFO","[$fU $tU $ci $rm] Relaying Request to $ru");
		xlog("L_INFO","[$fU $tU $ci $rm] Calling function b2b_init");
		b2b_init_request("top hiding");
		exit;
	}

	t_on_failure("GW_FAILOVER");

	route(RELAY);
}


route[RELAY] {
	if (!t_relay()) {
		sl_reply_error();
	}
	exit;
}


failure_route[GW_FAILOVER] {
	if (t_was_cancelled()) {
		exit;
	}

	# failure detection with redirect to next available trunk
	if (t_check_status("(408)|([56][0-9][0-9])")) {
		xlog("Failed trunk $rd/$du detected \n");
		send_reply("500","All GW are down");
	}
}


route[b2b_request]
{
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Request Received from $pr:$si:$sp User-Agent:$ua");
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Request message $rs:$rr received \n");
}

route[b2b_reply]
{
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Reply Received from $pr:$si:$sp User-Agent:$ua");
        xlog("L_INFO","[$fU $tU $ci $rm] B2B_Reply message $rs:$rr received \n");
}