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List: serusers
Subject: [Serusers] voicemail question - dial plan example -
From: lgfausak () august ! net (Greg Fausak)
Date: 2003-09-26 18:55:05
Message-ID: m1A2w2P-002Hv0C () gomer ! august ! net
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Stephen,
Just when I thought I knew everything :-)
Thank you!
---greg
>
>Greg,
>
>You can set a timer when the phone rings and isn't answered.
>
>modparam("tm", "fr_inv_timer", 20 )
>
>20 is the time before the failure. You can change this.
>
>
>Stephen
>-----Original Message-----
>From: Greg Fausak [mailto:greg@august.net]
>Sent: Friday, September 26, 2003 11:56 AM
>To: 'Jiri Kuthan'; 'Gavin Bensom'; serusers@iptel.org
>Subject: RE: [Serusers] voicemail question - dial plan example -
>pstngatewayexample
>
>Jiri,
>
>I believe this is what you and I talked about
> at VON. I am very interested in an easy way to
> do serial forking. For instance, if I have 3 sip endpoints
> like :
>
>1000@myproxy.com
>1010@myproxy.com
>1020@myproxy.com
>
>And finally, a voice mail reference:
>
>1000@myvoicemailmediaserver.com
>
>I currently am doing a serial forking like this:
>
>First, create a table called 'forward' that works exactly like
>'aliases'.
>Then, put all 'forward' instructions in the table. This includes
>forwarding
>to voicemail server.
>
>{
>...
> if(lookup("forward"))
> {
> xlog("L_WARN", "HUNTGROUP: %Ts call-id:%ci cseq:%ci\n");
> t_on_failure("1");
> }
>
> if(!t_relay())
> {
> sl_reply_error();
> break;
> }
>...
>}
>
># here is the 'failure_route' for number forwarding
>failure_route[1]
>{
> if(lookup("forward"))
> {
> xlog("L_WARN", "CONTINUE HUNT: %Ts call-id:%ci cseq:%ci
>messageid:%mi\n");
> t_on_failure("1");
> append_branch();
> t_relay();
> break;
> };
>
> xlog("L_WARN", "NO CONTINUE HUNT: %Ts call-id:%ci cseq:%ci
>messageid:%mi\n");
>
> #sl_reply_error();
> t_reply("486","Busy puppy.");
> break;
>}
>
>This setup sort of works, but, it seems that I get many
> t_relay() events that just hang and eventually time out,
> which I don't understand how is happening.
>
>Also, it would be nice if I could set a timer, say for 15 seconds, that
> causes a failure to occur in the event a phone rings but isn't
>answered.
>
>---greg
>
>>
>> There is other problem though -- the failure_route logic for
>> VM should be different
>> from that in route block -- you can't create transaction
>> state two times
>> (first time with t_relay, second time with t_newtran). SER
>> will certainly
>> complain with some error message in your logs.
>>
>> I will introduce some new command which hides details of
>> transaction processing
>> from script writers and can be used from both route[] and
>> failure_route[].
>> (I didn't think of it before since I used voicemail on some
>> other machine
>> than proxy server.)
>>
>> -jiri
>>
>> >
>> >Thanks,
>> >G.
>> >
>> >
>> >Do you Yahoo!?
>> ><http://shopping.yahoo.com/?__yltc=s%3A150000443%2Cd%3A227082
>> 28%2Cslk%3Atext%2Csec%3Amail>The New Yahoo! Shopping - with
>> improved product search
>> >#
>> ># $Id: ser.cfg,v 1.20 2003/05/31 21:12:19 jiri Exp $
>> >#
>> ># simple quick-start config script
>> >#
>> >
>> ># ----------- global configuration parameters
>> ------------------------
>> >
>> >debug=3 # debug level (cmd line: -dddddddddd)
>> >fork=yes
>> >log_stderror=no # (cmd line: -E)
>> >
>> >/* Uncomment these lines to enter debugging mode
>> >debug=8
>> >fork=no
>> >log_stderror=yes
>> >*/
>> >
>> >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"
>> >sip_warning=no
>> >#
>> ># ------------------ 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/vm.so"
>> >loadmodule "/usr/local/lib/ser/modules/pa.so"
>> >loadmodule "/usr/local/lib/ser/modules/msilo.so"
>> >loadmodule "/usr/local/lib/ser/modules/acc.so"
>> >loadmodule "/usr/local/lib/ser/modules/textops.so"
>> >#
>> >#loadmodule "/usr/local/lib/ser/modules/nathelper.so"
>> >#loadmodule "/usr/local/lib/ser/modules/uri.so"
>> >#loadmodule "/usr/local/lib/ser/modules/group.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")
>> >#
>> >#
>> >modparam("acc", "log_level", 1)
>> >modparam("acc", "log_flag", 2)
>> >modparam("acc", "log_missed_flag", 2)
>> >modparam("acc", "log_fmt", "fimos")
>> >#
>> >#modparam("tm", "fr_inv_timer", 35) #INVITE timeout
>> >#modparam("tm", "fr_timer", 30) #negative INVITE replay or no
>> > #final reply for a request for ACK
>> >#
>> >modparam("voicemail", "db_url", "sql://ser:heslo@localhost/ser")
>> >#
>> >#modparam("acc", "db_url", "sql://ser:heslo@localhost/ser")
>> >#modparam("acc", "db_flag", 2)
>> >#modparam("acc", "db_missed_flag", 2)
>> >#
>> ># ------------------------- request routing logic
>> -------------------
>> >#
>> ># main routing logic
>> >#
>> >alias=10.10.10.49 #sip server IP address
>> >alias=jiffypop #sip server name
>> >alias=mydomain.com #sip domain/realm
>> >alias=jiffypop.mydomain.com #sip server FQDN
>> >#
>> >route{
>> > log(1,"entering main route");
>> > #prevent strangers from claiming to belong to our domain;
>> > #if sender claims to be in our domain in From header field,
>> > #better authenticate him
>> > # code not inserted yet :)
>> >
>> > # 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 (len_gt( 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
>> > record_route();
>> > # loose-route processing
>> > if (loose_route()) {
>> > t_relay();
>> > break;
>> > };
>> >
>> > setflag(2); #set flag for accounting
>> >
>> > # 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") {
>> > # digest authentication
>> > log(1,"request for registration");
>> > if (!www_authorize("mydomain.com",
>> "subscriber")) {
>> > www_challenge("mydomain.com", "0");
>> > break;
>> > };
>> > save("location");
>> > break;
>> > };
>> >
>> >/* ********** Dial out to PSTN logic ************* */
>> >
>> > #forward numerical 7 digit requests to gateway
>> >
>> if(uri=~"^sip:[0-9]{7}@(mydomain\.com|10\.10\.10\.49)"){
>> >#
>> append_hf("Remote-Party-ID:<sip:6508466600@mydomain.com>;party
>> =calling;id-type=subscriber;privacy=off;screen=no;\r\n");
>> > rewritehostport("10.10.10.5:5060");
>> > log(1,"7 digit expression match");
>> > route(2);
>> > break;
>> >
>> > };
>> > # strip 650 and forward to GW is user dials
>> 650 before phone no.
>> >
>> if(uri=~"^sip:650[0-9]{7}@(mydomain\.com|10\.10\.10\.49)"){
>> > strip(3);
>> > rewritehostport("10.10.10.5:5060");
>> > log(1,"650 area code dialed, 650 stripped");
>> > route(2);
>> > break;
>> >
>> > };
>> > #forward numerical 10 digit requests to
>> gateway, append a 1 first
>> >
>> if(uri=~"^sip:[0-9]{10}@(mydomain\.com|10\.10\.10\.49)"){
>> > prefix("1");
>> > rewritehostport("10.10.10.5:5060");
>> > log(1,"10 digit expression match, prefix 1");
>> > route(2);
>> > break;
>> > };
>> > #forward numerical 11 digit requests that
>> start with a 1 to GW
>> >
>> if(uri=~"^sip:1[0-9]{10}@(mydomain\.com|10\.10\.10\.49)"){
>> > rewritehostport("10.10.10.5:5060");
>> > log(1,"10 digit exp match w/leading 1");
>> > route(2);
>> > break;
>> > };
>> > #forward international N digit requests to gateway
>> >
>> if(uri=~"^sip:011[0-9]+@(mydomain\.com|10\.10\.10\.49)"){
>> > rewritehostport("10.10.10.5:5060");
>> > log(1,"international expression match");
>> > route(2);
>> > break;
>> > };
>> >
>> >/* ********** VOICEMAIL logic ************* */
>> >
>> > if (uri=~"^sip:voicemail\+@"){
>> > t_newtran();
>> > t_reply("100", "Trying -- just a second");
>> > if(!vm("/tmp/am_fifo","announcement")){
>> > t_reply("500", "SEMS error");
>> > };
>> > log(1,"sip:voicemail uri match");
>> > break;
>> > };
>> >/* ****** Find Aliases and Locations of users ********* */
>> >
>> ># It is very important to lookup "aliases" before looking up
>> "locations"
>> >
>> > if(!lookup("aliases")){
>> > log(1,"Couldn't find any matching alias");
>> > sl_send_reply("404", "User does not exist");
>> > break;
>> > };
>> >
>> > if(!lookup("location")) {
>> > log(1,"unable to locate user");
>> > route(3);
>> > break;
>> > };
>> >
>> > };
>> >
>> >
>> > # forward to current uri now; use stateful forwarding; that
>> > # works reliably even if we forward from TCP to UDP
>> > t_on_failure("1");
>> > if (!t_relay()) {
>> > sl_reply_error();
>> > };
>> > log(1,"eof");
>> >}
>> >
>> >route[2]{
>> > log(1,"route[2]:SIP-to-PSTN call routed");
>> > if(!t_relay()){
>> > sl_reply_error();
>> > };
>> >}
>> >
>> >route[3]{
>> > log(1,"route[3]: voicemail processing");
>> > if(method=="INVITE" || method=="ACK"){
>> > log(1,"1st if entered in route[3] *vm*");
>> > t_newtran();
>> > t_reply("100","Trying -- just a second");
>> > if(!vm("/tmp/am_fifo","voicemail")){ #
>> "announcement" was replaced with "voicemail"
>> > log(1,"vm module called and failed");
>> > t_reply("500", "SEMS error");
>> > };
>> > break;
>> > };
>> > log(1,"end of route[3], 1st if check not entered");
>> >}
>> >
>> >failure_route[1]{
>> > log(1,"failure_route[1]:jump to vm processing");
>> > route(3);
>> ># break;
>> >}
>> >
>> >_______________________________________________
>> >Serusers mailing list
>> >Serusers@iptel.org
>> >http://mail.iptel.org/mailman/listinfo/serusers
>>
>> --
>> Jiri Kuthan http://iptel.org/~jiri/
>>
>> _______________________________________________
>> Serusers mailing list
>> Serusers@iptel.org
>> http://mail.iptel.org/mailman/listinfo/serusers
>>
>
>_______________________________________________
>Serusers mailing list
>Serusers@iptel.org
>http://mail.iptel.org/mailman/listinfo/serusers
>
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