<DIV>hi,</DIV>
<DIV>I m sorry for my earlier mail as the picture was not very clear. The scenario is something like this:</DIV>
<DIV> </DIV>
<DIV>Client A (Public IP)</DIV>
<DIV> \ ________ __________________ __________</DIV>
<DIV> \| My | | Foreign Openser | | PSTN |</DIV>
<DIV> |Openser |-----------------------| trusts me through |--------------| Gateway |</DIV>
<DIV> / |_______ | | source IP | |_________|</DIV>
<DIV> / |__________________|</DIV>
<DIV> / </DIV>
<DIV>Client B (Private IP) </DIV>
<DIV> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Whenever My Openser receives a call with prefix for eg. 011, it t_relay it to the foreign Ser which trusts My Openser with source IP. Now when the client A with public IP makes a call it gets established but when the client B with private IP makes a call I receive the ringing message but the RTP sessions does not start. I have configured the mediaproxy in My Openser but still it does'nt seem to work. Pls help me figure out the problem. </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">The RTP Proxy session is not happening and that might be the reason for the problem. Can u pls help me understand why RTP proxy is not getting established for Nated clients. </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Below is my configuration script:</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">debug=3<BR>fork=yes<BR>log_stderror=no</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">listen=203.XXX.64.XX # INSERT YOUR IP ADDRESS HERE<BR>port=5060<BR>children=4</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">dns=no<BR>rev_dns=no</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">fifo="/tmp/ser_fifo"<BR>fifo_db_url="mysql://openser:openserrw@localhost/openser"</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">loadmodule "/usr/local/lib/openser/modules/mysql.so"<BR>loadmodule "/usr/local/lib/openser/modules/sl.so"<BR>loadmodule "/usr/local/lib/openser/modules/tm.so"<BR>loadmodule "/usr/local/lib/openser/modules/rr.so"<BR>loadmodule "/usr/local/lib/openser/modules/maxfwd.so"<BR>loadmodule "/usr/local/lib/openser/modules/usrloc.so"<BR>loadmodule "/usr/local/lib/openser/modules/registrar.so"<BR>loadmodule "/usr/local/lib/openser/modules/auth.so"<BR>loadmodule "/usr/local/lib/openser/modules/auth_db.so"<BR>loadmodule "/usr/local/lib/openser/modules/uri.so"<BR>loadmodule "/usr/local/lib/openser/modules/uri_db.so"<BR>loadmodule "/usr/local/lib/openser/modules/mediaproxy.so"<BR>loadmodule "/usr/local/lib/openser/modules/nathelper.so"<BR>loadmodule "/usr/local/lib/openser/modules/textops.so"<BR>loadmodule
"/usr/local/lib/openser/modules/avpops.so"<BR>loadmodule "/usr/local/lib/openser/modules/domain.so"<BR>loadmodule "/usr/local/lib/openser/modules/permissions.so"<BR>loadmodule "/usr/local/lib/openser/modules/acc.so"</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("auth_db|permissions|uri_db|usrloc|acc", <BR> "db_url", "mysql://openser:openserrw@localhost/openser")<BR>modparam("auth_db", "calculate_ha1", 1)<BR>modparam("auth_db", "password_column", "password")</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("nathelper", "rtpproxy_disable", 1)<BR>modparam("nathelper", "natping_interval", 0)</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("mediaproxy","natping_interval", 30)<BR>modparam("mediaproxy","mediaproxy_socket", "/var/run/mediaproxy.sock")<BR>modparam("mediaproxy","sip_asymmetrics","/usr/local/etc/ser/sip-asymmetric-clients")<BR>modparam("mediaproxy","rtp_asymmetrics","/usr/local/etc/ser/rtp-asymmetric-clients")</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("usrloc", "db_mode", 2)</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("registrar", "nat_flag", 6)</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("rr", "enable_full_lr", 1)</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("tm", "fr_inv_timer", 27)<BR>modparam("tm", "fr_inv_timer_avp", "inv_timeout")</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("permissions", "db_mode", 1)<BR>modparam("permissions", "trusted_table", "trusted")</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">modparam("acc", "log_level", 1)<BR>modparam("acc", "log_flag", 1)<BR>modparam("acc", "db_flag", 1)</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"># -----------------------------------------------------------------<BR> # Sanity Check Section<BR> # -----------------------------------------------------------------<BR> if (!mf_process_maxfwd_header("10")) {<BR> sl_send_reply("483", "Too Many Hops");<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (msg:len > max_len) {<BR> sl_send_reply("513", "Message Overflow");<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"># -----------------------------------------------------------------<BR> # Record Route Section<BR> # -----------------------------------------------------------------<BR> if (method=="INVITE" && client_nat_test("3")) {<BR> # INSERT YOUR IP ADDRESS HERE<BR> record_route_preset("203.XXX.64.XX:5060;nat=yes");<BR> } else if (method!="REGISTER") { <BR> record_route(); <BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"># -----------------------------------------------------------------<BR> # Call Tear Down Section<BR> # -----------------------------------------------------------------<BR> if (method=="BYE" || method=="CANCEL") {<BR> end_media_session();<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"># -----------------------------------------------------------------<BR> # Loose Route Section<BR> # -----------------------------------------------------------------<BR> if (loose_route()) {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (has_totag() && (method=="INVITE" || method=="ACK")) {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (client_nat_test("3")||search("^Route:.*;nat=yes")){<BR> setflag(6);<BR> use_media_proxy();<BR> };<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> route(1);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"># -----------------------------------------------------------------<BR> # Call Type Processing Section</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # -----------------------------------------------------------------</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (uri!=myself) {<BR> route(5);<BR> route(1);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (uri==myself) {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (method=="ACK") {<BR> route(6);<BR> break;<BR> } else if (method=="CANCEL") {<BR> route(3);<BR> break;<BR> } else if (method=="INVITE") {<BR> route(3);<BR> break;<BR> } else if (method=="REGISTER") {<BR> route(2);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> lookup("aliases");<BR> if (uri!=myself) {<BR> route(5);<BR> route(1);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!lookup("location")) {<BR> sl_send_reply("404", "User Not Found");<BR> break;<BR> };<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> route(1);<BR>}</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route[1] {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # -----------------------------------------------------------------<BR> # Default Message Handler<BR> # -----------------------------------------------------------------</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> t_on_reply("1");</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!t_relay()) {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (method=="INVITE" || method=="ACK") {<BR> end_media_session();<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> sl_reply_error();<BR> };<BR>}</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route[2] {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # -----------------------------------------------------------------<BR> # REGISTER Message Handler<BR> # -----------------------------------------------------------------</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> sl_send_reply("100", "Trying");</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!search("^Contact:\ +\*") && client_nat_test("7")) {<BR> setflag(6);<BR> fix_nated_register();<BR> force_rport();<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!www_authorize("my_domain","subscriber")) {<BR> www_challenge("my_domain","0");<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!check_to()) {<BR> sl_send_reply("401", "Unauthorized");<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> consume_credentials();</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!save("location")) {<BR> sl_reply_error();<BR> };<BR>}</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route[3] {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # -----------------------------------------------------------------<BR> # CANCEL and INVITE Message Handler<BR> # -----------------------------------------------------------------<BR> setflag(1);<BR> <BR> if (client_nat_test("3")) {<BR> setflag(7);<BR> force_rport();<BR> fix_nated_contact();<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> <BR> if (method=="INVITE" && !allow_trusted()) {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!proxy_authorize("my_domain","subscriber")) {<BR> proxy_challenge("my_domain","0");<BR> break;<BR> } else if (!check_from()) {<BR> sl_send_reply("403", "Use From=ID");<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> consume_credentials();<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> lookup("aliases");<BR> if (uri!=myself) {<BR> route(5);<BR> route(1);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (uri=~"^sip:011[0-9]*@") { # International PSTN<BR> route(4);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (!lookup("location")) {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (uri=~"^sip:[0-9]{10}@") { # Domestic PSTN<BR> route(4);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> sl_send_reply("404", "User Not Found");<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (method=="CANCEL") {<BR> route(1);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> route(5);<BR> route(1);<BR>}</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route[4] {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # -----------------------------------------------------------------<BR> # PSTN Handler<BR> # -----------------------------------------------------------------</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> rewritehost("66.XXX.11.XX"); </SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> avp_write("i:45", "inv_timeout");</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> route(5);<BR> route(1);<BR>}</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route[5] {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # -----------------------------------------------------------------<BR> # RTP Proxy Enabler<BR> # -----------------------------------------------------------------</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> if (isflagset(6) || isflagset(7)) {<BR> use_media_proxy();<BR> };<BR>}</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"></SPAN> </DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">route[6] {</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # ------------------------------------------------------------------------<BR> # ACK Handler<BR> # ------------------------------------------------------------------------</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> # ------------------------------------------------------------------------<BR> # Aliases Section<BR> # ------------------------------------------------------------------------<BR> lookup("aliases");<BR> if (uri!=myself) {<BR> route(5);<BR> route(1);<BR> break;<BR> };</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> lookup("location");</SPAN></DIV>
<DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"> route(1);<BR>}</SPAN></DIV><SPAN style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">
<DIV><BR>onreply_route[1] {</DIV>
<DIV> if ((isflagset(6) || isflagset(7)) && <BR> (status=~"(180)|(183)|2[0-9][0-9]")) {</DIV>
<DIV> if (!search("^Content-Length:\ +0")) {<BR> use_media_proxy();<BR> };<BR> };</DIV>
<DIV> if (client_nat_test("1")) {<BR> fix_nated_contact();<BR> };<BR>}</DIV>
<DIV></SPAN> </DIV><p>
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