[Serusers] SEMS Voicemail Vs SER vm module
Steve Blair
blairs at isc.upenn.edu
Sat Jul 24 13:25:57 CEST 2004
Koyama:
First if SEMS messages for Koyama are to be delivered to
zehi_koyama at yahoo.com then this email address must be present in the
subscriber record on the SER proxy for Koyama. The subscriber
email_address field is where SEMS looks for the destination address
to which to send email.
Next, where to run SER & SEMS. I happen to run everything on the
same machine. SER listens on port 5060, SER_VM on 5090 and SEMS
interacts with SER_VM via the fifo defined in it's configuration file.
SER_VM is an intermediary between SER and SEMS. I did this
because I want SER to use a failure_route route block to forward
unanswered calls to a specific destination. However since this destination
must be specified as a <hostname:port> and SEMS doesn't listen on a
port I need somewhere to send the call. SER_VM does this. It is a
second instance of SER with only enough logic to handle the "voicemail"
request.
In my case this logic allows users to send a message to the SEMS
voicemail application, contact the SEMS announcement application where they
get a general University status message or contact the SEMS echo
application to perform an echo test. Most calls so far are going right
to voicemail.
I hope this helps.
-Steve
Koyama Zehi wrote:
> Dear Steve,
> Thnk you very much for you mail and teaching to me some good facts
> about SEMS and SER. As i am very new in this domain thats why I could
> not undersatnd fully your mail text, even i could not understand your
> first paln..any i think what i am wishing is matching with your second
> plan. i am just telling to you what i want to do.
> Suppose "koyama" is registered with SER after half an hour "koyama "
> logout (I mean to say that unregister) from SER now if say "Steve" is
> registered with SER and wants to make a sip call to "koyama" because
> she is unavailabe at this time and wants her message on her mail id on
> zehi_koyama at yahoo.com <mailto:zehi_koyama at yahoo.com>. then how she has
> to setup her SEMS server..what special setting is required in ser.cfg,
> on what basis ser will communicate to SEM. what module of ser will
> communicate to SEMS.
> SEMS will run on the same machine or it will run on different machine.
> Is their some scripts in SEMS like ser (Ser.cfg)....
> I am attaching my ser.cfg scripts please send me your running ser.cfg
> scripts and please teach me about my dougts...
> thanks in advance...
>
> *****************************************************************************************************
> SER.CFG
> ******************************************************************************************************
>
>
> # $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei 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=7
> 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"
> # ------------------ module loading ----------------------------------
> # Uncomment this if you want to use SQL database
> loadmodule "/usr/lib/ser/modules/mysql.so"
> loadmodule "/usr/lib/ser/modules/sl.so"
> loadmodule "/usr/lib/ser/modules/tm.so"
> loadmodule "/usr/lib/ser/modules/rr.so"
> loadmodule "/usr/lib/ser/modules/maxfwd.so"
> loadmodule "/usr/lib/ser/modules/usrloc.so"
> loadmodule "/usr/lib/ser/modules/registrar.so"
> # HSL for VM
> loadmodule "/usr/lib/ser/modules/textops.so"
> loadmodule "/usr/lib/ser/modules/vm.so"
> #loadmodule "/usr/lib/ser/modules/dbtext.so"
> # Uncomment this if you want digest authentication
> # mysql.so must be loaded !
> loadmodule "/usr/lib/ser/modules/auth.so"
> loadmodule "/usr/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)
> # time to give up on ringing -- global timer, applies to
> # all transactions
> modparam("tm", "fr_inv_timer", 90)
>
> # ----------------- setting module-specific parameters ---------------
> modparam("voicemail", "db_url","sql://ser:heslo@dbhost/ser")
>
> # ------------------------- request routing logic -------------------
> # main routing logic
> route{
>
> # initial sanity checks -- messages with
> # max_forwars==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;
> };
> if (!uri==myself) {
> sl_send_reply("404", "not reponsible for host in r-uri");
> break;
> };
>
> # Voicemail specific configuration - begin
> if(method=="ACK" || method=="INVITE" || method=="BYE"){
> if (!t_newtran()) {
> log("could not create new transaction\n");
> sl_send_reply("500","could not create new transaction");
> break;
> };
> t_reply("100","Trying -- just wait a minute !");
> if(method=="INVITE"){
> log("**************** vm start - begin ******************\n");
> if (uri=~"sip:as_welcome at .*" || uri=~"sip:as_nomoney at .*") {
> if (!vm("/tmp/am_fifo", "announcement")) {
> log("couldn't contact announcement server\n");
> t_reply("500", "couldn not contact announcement server");
> };
> } else {
> if(!vm("/tmp/am_fifo","voicemail")){
> log("could not contact the answer machine\n");
> t_reply("500","could not contact the answer machine");
> };
> };
> log("**************** vm start - end ******************\n");
> } else if(method=="BYE"){
> log("**************** vm end - begin ******************\n");
> if(!vm("/tmp/am_fifo","bye")){
> log("could not contact the answer machine\n");
> t_reply("500","could not contact the answer machine");
> };
> log("**************** vm end - end ******************\n");
> };
> break;
> };
> if (method=="CANCEL") {
> sl_send_reply("200", "cancels are junked here");
> break;
> };
> sl_send_reply("501", "method not understood here");
> }
>
> **********************************************************************************************************
>
>
>
>
> */Steve Blair <blairs at isc.upenn.edu>/* wrote:
>
>
> Koyama:
>
> I tried SEMS in two different modes. First a mode where the call ad to
> enter a pin to access the voicemail system and second where unanswered
> calls "roll over" to SEMS. In the first case just put the check
> for the pin
> in your ser config as you would with any other number within the
> dialplan.
> Digits matching the pin get sent to the SEMS interface as outlined
> in the
> documentation.
>
> In the second case I run a second instance of the SER proxy to provide
> the interface between the failure_route function of the transaction
> module and
> the SEMS fifo interface. The second instance of SER only need
> those config
> statements to identify the port, lisen address, fifo name/privs
> and any call
> processing logic.
>
> Then I copied the serctl script to serctl, serctl_vm and semsctl so I
> can start
> each process. The fifo name for the second SER process must be
> different
> than the first.
>
> good luck,
> Steve
>
> Koyama Zehi wrote:
>
> > Dear all,
> > I am a newbie in SIP please excuse me, for my poor questions.
> > As I am working to add Voicemail service on my SER proxy. I am very
> > much confuse about how to use SEMS module with SER.
> >
> > As according to "SIP Express Router v0.11 --Admin Guide" SEMS is
> > required to provide voicemail capability in SIP server. As i have
> > downloaded
> > "sems-0.1.0.tar.gz" and installed in my machine where I have
> > "ser-0.8.12" as a sip server. after that
> > And I have changed my ser.cfg scripts to provide voicemail
> capabilities
> > and to load vm module available in SER.
> >
> > Now I get stuck How I have to use SEMS module ( I mean to say that
> > "ans_machine" available in sems )
> >
> > what is the difference & similarity between SEMS Voicemail and
> SER vm
> > module.
> >
> > On what basis SEMS Voicemail and SER communicate to each other.
> >
> > Is their any configuration file is required inside the SEMS like SER
> > (ex. ser.cfg).
> >
> > what is the prop er step to perform a testing of voice mail
> using these
> > modules..
> >
> > Please excuse me if i have asked something wrong and please teach me
> > about my queries.
> > Thanks in advance.
> > koyama
> >
> >
> >
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