[Serusers] CPL-C and call forward on busy or no answer

[Bogdan-Andrei IANCU]

Hi Oliver,


The problem is in your configuration :-).  cpl-c module param 
"proxy_route" doesn't refer to a route that does proxy(relying) as you 
configure, but to a route to be processed before cpl-c does proxy (this 
is does internally). So. basically you were trying to do twice 
transaction creations and req. relaying.

so, in your case, please remove the "proxy_route" param.

bogdan


Brinker, Oliver wrote:

>Hi Bogdan,
>
>please find attached my ser configuration. I'm using the cvs head version
>downloaded two days ago (22.06.04). Should be actual enough ;) Thanks a lot.
>
>Regards,
>Oliver
>
>#
># $Id: ser.cfg,v 1.24 2003/11/11 15:32:36 andrei Exp $
>#
># simple quick-start config script
>#
>
># ----------- global configuration parameters ------------------------
>
># log into /var/log/messages
>debug=9         	# debug level (cmd line: -dddddddddd)
>fork=yes
>log_stderror=no		# (cmd line: -E)
>
>check_via=no	# (cmd. line: -v)
>dns=no           # (cmd. line: -r)
>rev_dns=no      # (cmd. line: -R)
>#port=5060
>#children=4
>fifo="/tmp/ser_fifo"
>
># Additional Alias
>alias="sip.et123lab.de"
>
># ------------------ module loading ----------------------------------
>
># Uncomment this if you want to use SQL database
>loadmodule "/usr/local/lib/ser/modules/mysql.so"
>
>loadmodule "/usr/local/lib/ser/modules/sl.so"
>loadmodule "/usr/local/lib/ser/modules/tm.so"
>loadmodule "/usr/local/lib/ser/modules/rr.so"
>loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
>loadmodule "/usr/local/lib/ser/modules/usrloc.so"
>loadmodule "/usr/local/lib/ser/modules/registrar.so"
>loadmodule "/usr/local/lib/ser/modules/textops.so"
>
># CPL-C module
>loadmodule "/usr/local/lib/ser/modules/cpl-c.so"
>
># Uncomment this if you want digest authentication
># mysql.so must be loaded !
>loadmodule "/usr/local/lib/ser/modules/auth.so"
>loadmodule "/usr/local/lib/ser/modules/auth_db.so"
>
># ----------------- setting module-specific parameters ---------------
>
># -- usrloc params --
>
>#modparam("usrloc", "db_mode",   0)
>
># Uncomment this if you want to use SQL database 
># for persistent storage and comment the previous line
>modparam("usrloc", "db_mode", 2)
>
># -- auth params --
># Uncomment if you are using auth module
>#
>modparam("auth_db", "calculate_ha1", yes)
>#
># If you set "calculate_ha1" parameter to yes (which true in this config), 
># uncomment also the following parameter)
>#
>modparam("auth_db", "password_column", "password")
>
># -- rr params --
># add value to ;lr param to make some broken UAs happy
>modparam("rr", "enable_full_lr", 1)
>
># -- cpl-c params --
>modparam("cpl-c","cpl_db","mysql://xxxx:xxxx@localhost/ser")
>modparam("cpl-c","cpl_table","cpl")
>modparam("cpl-c","cpl_dtd_file","/usr/local/etc/ser/cpl-06.dtd")
>modparam("cpl-c","log_dir","/var/log/ser/cpl")
>modparam("cpl-c","proxy_recurse",2)
>modparam("cpl-c","proxy_route",1)
>modparam("cpl-c","lookup_domain","location")
>
># -- timer settings --
>modparam("tm","noisy_ctimer",1) # this will force timeout
>modparam("tm","fr_inv_timer",30) # sets the timeout for INVITE to 30 sec (default is 120)
>
># -------------------------  request routing logic -------------------
>
># main routing logic
>
>route{
>
>	# initial sanity checks -- messages with
>	# max_forwards==0, or excessively long requests
>	if (!mf_process_maxfwd_header("10")) {
>		sl_send_reply("483","Too Many Hops");
>		break;
>	};
>	if (msg:len >=  max_len ) {
>		sl_send_reply("513", "Message too big");
>		break;
>	};
>
>	# we record-route all messages -- to make sure that
>	# subsequent messages will go through our proxy; that's
>	# particularly good if upstream and downstream entities
>	# use different transport protocol
>	if (!method=="REGISTER") record_route();	
>
>	# subsequent messages withing a dialog should take the
>	# path determined by record-routing
>	if (loose_route()) {
>		# mark routing logic in request
>		append_hf("P-hint: rr-enforced\r\n"); 
>		route(1);
>		break;
>	};
>
>	if (!uri==myself) {
>		# mark routing logic in request
>		append_hf("P-hint: outbound\r\n"); 
>		route(1);
>		break;
>	};
>
>	# if the request is for other domain use UsrLoc
>	# (in case, it does not work, use the following command
>	# with proper names and addresses in it)
>	if (uri==myself) {
>
>		if (method=="REGISTER") {
>
>			# Uncomment this if you want to use digest authentication
>			if (!www_authorize("sip.et123lab.de", "subscriber")) {
>				www_challenge("sip.et123lab.de", "0");
>				break;
>			};
>
>			# handle REGISTER messages containing a CPL script
>			cpl_process_register();
>
>			save("location");
>			break;
>		};
>
>		# process CPL script
>		log("cpl: start script processing now");	
>		cpl_run_script("incoming","FORCE_STATEFUL");
>		log("cpl: script processing has been finished");
>
>		lookup("aliases");
>		if (!uri==myself) {
>			append_hf("P-hint: outbound alias\r\n"); 
>			route(1);
>			break;
>		};
>
>		# native SIP destinations are handled using our USRLOC DB
>		if (!lookup("location")) {
>			sl_send_reply("404", "Not Found");
>			break;
>		};
>	};
>	append_hf("P-hint: usrloc applied\r\n"); 
>	route(1);
>}
>
>route[1] 
>{
>	# send it out now; use stateful forwarding as it works reliably
>	# even for UDP2TCP
>	if (!t_relay()) {
>		sl_reply_error();
>	};
>}
>
>
>
>
>Bogdan-Andrei IANCU [mailto:iancu at fokus.fraunhofer.de] wrote 
>
>Hi Oliver,
>
>please send me your ser.cfg - it will help me to trace the problem. Also 
>be sure you are using the latest cvs head version - there were some 
>updates 1 or 2 weeks ago.
>
>Regards,
>Bogdan
>
>Brinker, Oliver wrote:
>
>  
>
>>Hi Bogdan,
>>
>>I solved the problem with SER startup. The reason was that I download 
>>the CVS head onto my notebook and copy it via ftp to the linux server. 
>>After downloading CVS head directly onto the linux server, compiling 
>>and installing it SER starts up without any error message.
>>
>>But I have still the problem with call forwarding on busy or no answer. 
>>Inserting log information into my CPL script I can reproduce that SER 
>>is never processing the <busy> or <noanswer> tag and the following 
>>tags. I try out the example script from the current IETF CPL draft for 
>>Call Forward Busy/No Answer in the following scenario:
>>
>>6131 forwards calls to 613 if busy -> 6131 has an active session with 
>>614 -> 612 calls 6131 -> 6131 is busy and SER should invite 613
>>
>>After uploading the CPL script for 6131 the caller 614 cannot reach 
>>6131 and the syslog represents the attached error message.
>>
>>Can you identify any mistake I've done in my configuration? Many 
>>thanks.
>>
>>Best Regards,
>>
>>Oliver
>> 
>>
>>    
>>
>
>  
>