Hi,

This is an example, one of the many scripts I've written over the last several months. Many of these parts have been copied from the iptel.org example, which is very good for learning.

It will route to REGISTERed phones and to PSTN numbers. If you forward your PSTN gateway to this server, it will route incoming PSTN calls as well. This script does authentication with the user agents. It also does accounting, call INVITE and BYE to syslog.

---greg

loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/acc.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/exec.so" loadmodule "/usr/local/lib/ser/modules/mysql.so" loadmodule "/usr/local/lib/ser/modules/auth.so" loadmodule "/usr/local/lib/ser/modules/textops.so"

modparam("usrloc","db_mode",2) modparam("usrloc","db_url", "sql://ser:xxxxxx@localhost/ser")

modparam("acc", "log_level", 1) modparam("acc", "acc_flag", 1 ) modparam("auth","db_url", "sql://ser:xxxxxx@localhost/ser")

# # this is the main routing block for augustvoice.net # this block can handle any routing request, local or foreign #

route { # # check to see if the message has been around too long # probably means that it is looping # if (!mf_process_maxfwd_header("10")) { log("LOG: Too many hops\n"); sl_send_reply("483","Too Many Hops"); break; };

# # make sure the length of the message isn't too long! # if (len_gt( max_len )) { sl_send_reply("513", "Wow -- Message too large"); break; };

# # rewrite the From stuff # rewriteFromRoute();

if (method=="REGISTER") { route(1); break; };

if(method=="INVITE" | method=="BYE") { setflag(2); };

# now check if it's about PSTN destinations through our gateway; if (uri=~"sip:[0-9]{10}@.*") { route(3); break; };

# now check if it's about LD PSTN destinations through our gateway; if (uri=~"sip:1[0-9]{10}@.*") { route(3); break; };

# check for native destinations if (lookup("location")) { log(1,"found location"); };

if(isflagset(2)) { log(1,"TRACE: addRecordRoute()"); addRecordRoute(); };

# turn on local delivery accounting if(method=="INVITE" | method=="BYE") { log(1,"TRACE: turn on accounting for INVITE or BYE"); setflag(1); };

append_hf("P-hint: USRLOC\r\n"); if(!t_relay()) { sl_reply_error(); break; }; }

# # route[1], REGISTER block # REGISTER messages destined for our realm are forwarded here. # after a successful registration a customer can receive calls. # route[1] { if(!www_authorize("augustvoice.net", "subscriber")) { www_challenge("augustvoice.net", "0"); break; };

# if(!check_to()) # { # log("LOG: To Cheating attempt\n"); # sl_send_reply("403","That is ugly -- use To=id next time"); # break; # };

log("here is a register"); if(!save("location")) { sl_reply_error(); }; break; }

# # route[2], offnet requests # route[2] { log(1,"TRACE:In route[2]"); if(!(src_ip==PSTN.GATEWAY.IP.ADDRESS) & !(proxy_authorize("augustvoice.net","subscriber"))) { log(1, "source ip is PSTN.GATEWAY.IP.ADDRESS"); if(method=="ACK") { log("LOG: failed outbound authentication for ACK\n"); } else if(method=="CANCEL") { log("LOG: failed outbound authentication for CANCEL\n"); } else { proxy_challenge("augustvoice.net","0"); break; }; } else { log(1, "NOT from IP address PSTN.GATEWAY.IP.ADDRESS"); }; }

# route[3], logic for calls to the PSTN route[3] { log(1,"TRACE:In route[3]");

if(!(src_ip==PSTN.GATEWAY.IP.ADDRESS | method=="ACK" | method=="CANCEL" | method=="BYE")) { if(!www_authorize("augustvoice.net","subscriber")) { www_challenge("augustvoice.net","0"); break; } # let's check from=id ... avoids accounting confusion else if (method=="INVITE" & !check_from()) { log("LOG: From Cheating attempt\n"); sl_send_reply("403", "That is ugly -- use From=id next time (gw)"); break; }; };

# we passed all authorization checks for PSTN -- move on! # tag this transaction for accounting setflag(1);

# requests to gateway must be record-routed because the GW accepts # only reqeusts coming from our proxy if (isflagset(2) || method=="INVITE" || method=="BYE") { addRecordRoute(); };

# if you have passed through all the checks, let your call go to GW!

rewritehostport("PSTN.GATEWAY.IP.ADDRESS:5060");

append_hf("P-hint: GATEWAY\r\n"); if (!t_relay()) { sl_reply_error(); break; }; } -----------------cut---------------

-----Original Message----- From: serusers-admin@iptel.org [mailto:serusers-admin@lists.iptel.org] On Behalf Of Phillip Haynes Sent: Thursday, January 30, 2003 2:57 PM To: serusers@lists.iptel.org Subject: [Serusers] Routing to the PSTN

Hi,

I have set up the SER and its working. The only problem is I cant get the routing logic to simultaneously route to either the User Loc or the PSTN. Its only doing one of the other.

I am new to SIP, can u show me a sample script that will do both at the same time?

Best regards,

Phillip