[Serusers] Calls from UAs behind NAT getting a 503 error...
Klaus Darilion
klaus.mailinglists at pernau.at
Wed Nov 9 14:38:34 CET 2005
Kyriakos wrote:
> Just wanted to add that I also get the warning: I wont send a reply
> for ACK.
> I guess that means ACK from UA behind NAT dont reach the pstn gw?
No, this means that your config is broken and you are trying to send
replies for incoming ACK requests.
regards
klaus
>
> thanks,
> Kyriakos
>
>
> ----- Original Message ----- From: "KM" <tank30 at hotmail.com>
> To: <serusers at lists.iptel.org>
> Sent: Wednesday, November 09, 2005 11:38 AM
> Subject: [Serusers] Calls from UAs behind NAT getting a 503 error...
>
>
>> Hi,
>> calls from a UA that is on public ip go through the pstn gw and
>> terminate ok.
>> Calls from behind NAT get a 503 error from the GW when the INVITE
>> message is sent from SER.
>>
>> The invite messages for both cases are the same except from the VIA
>> header which for the latter one contains the private ip of the UA.
>> Contact header is ok.
>> Could that be the reason that im getting calls rejected?
>> Is there a way to rewrite the VIA header?
>>
>>
>>
>> Im including the configuration file i have and some packet dumps of
>> the calls.Thanks!
>>
>> debug=3
>> fork=no
>> log_stderror=yes
>> listen=213.207.***.*** # put your server IP address here
>> port=5060
>> children=8
>> dns=no
>> rev_dns=no
>> fifo="/tmp/ser_fifo"
>> fifo_db_url="mysql://ser:********@localhost/ser"
>>
>> #KM added module
>> loadmodule "/usr/lib/ser/modules/exec.so"
>> 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"
>> loadmodule "/usr/lib/ser/modules/auth.so"
>> loadmodule "/usr/lib/ser/modules/auth_db.so"
>> loadmodule "/usr/lib/ser/modules/uri.so"
>> loadmodule "/usr/lib/ser/modules/uri_db.so"
>> loadmodule "/usr/lib/ser/modules/mediaproxy.so"
>> loadmodule "/usr/lib/ser/modules/nathelper.so"
>> loadmodule "/usr/lib/ser/modules/textops.so"
>> loadmodule "/usr/lib/ser/modules/avpops.so"
>> loadmodule "/usr/lib/ser/modules/domain.so"
>> loadmodule "/usr/lib/ser/modules/permissions.so"
>>
>> modparam("auth_db|permissions|uri_db|usrloc",
>> "db_url", "mysql://ser:heslo@localhost/ser")
>> modparam("auth_db", "calculate_ha1", 1)
>> modparam("auth_db", "password_column", "password")
>> modparam("nathelper", "rtpproxy_disable", 1)
>> modparam("nathelper", "natping_interval", 0)
>> modparam("mediaproxy","natping_interval", 30)
>> modparam("mediaproxy","mediaproxy_socket", "/var/run/mediaproxy.sock")
>> modparam("mediaproxy","sip_asymmetrics","/usr/etc/ser/sip-clients")
>> modparam("mediaproxy","rtp_asymmetrics","/usr/etc/ser/rtp-clients")
>> modparam("usrloc", "db_mode", 2)
>> modparam("registrar", "nat_flag", 6)
>> modparam("rr", "enable_full_lr", 1)
>> #pstn part-----------------------------------------
>> modparam("tm", "fr_inv_timer", 27)
>> modparam("tm", "fr_inv_timer_avp", "inv_timeout")
>> modparam("permissions", "db_mode", 1)
>> modparam("permissions", "trusted_table", "trusted")
>>
>> route {
>> # -----------------------------------------------------------------
>> # Sanity Check Section
>> # -----------------------------------------------------------------
>> if (!mf_process_maxfwd_header("10")) {
>> sl_send_reply("483", "Too Many Hops");
>> break;
>> };
>> if (msg:len > max_len) {
>> sl_send_reply("513", "Message Overflow");
>> break;
>> };
>> # -----------------------------------------------------------------
>> # Record Route Section
>> # -----------------------------------------------------------------
>> if (method=="INVITE" && client_nat_test("3")) {
>> # INSERT YOUR IP ADDRESS HERE
>> record_route_preset("213.207.***.***:5060;nat=yes");
>> } else if (method!="REGISTER") {
>> record_route();
>> };
>> # -----------------------------------------------------------------
>> # Call Tear Down Section
>> # -----------------------------------------------------------------
>> if (method=="BYE" || method=="CANCEL") {
>> end_media_session();
>> };
>> # -----------------------------------------------------------------
>> # Loose Route Section
>> # -----------------------------------------------------------------
>> if (loose_route()) {
>> if (has_totag() && (method=="INVITE" || method=="ACK")) {
>> if (client_nat_test("3") || search("^Route:.*;nat=yes")) {
>> setflag(6);
>> use_media_proxy();
>> #log(1,"route:NATED caller in loose route \n");
>> };
>> };
>> route(1);
>> break;
>> };
>> # -----------------------------------------------------------------
>> # Call Type Processing Section
>> # -----------------------------------------------------------------
>> #Check if the target domain is one that the server is responsible for
>> if (!is_uri_host_local()) {
>> log(1,"Call type processing: Target domain is not in the domain pool
>> \n");
>> #Check to see if the sender is in our own domain and allow messages
>> from pstn,pgw
>> if (is_from_local() || allow_trusted()) {
>> log(1,"Call type processing: Caller is local or trusted \n");
>> route(4);
>> route(1);
>> } else {
>> log(1,"Call type processing: 403 error \n");
>> sl_send_reply("403", "Forbidden");
>> };
>> break;
>> };
>> if (method=="CANCEL") {
>> route(1);
>> break;
>> } else if (method=="INVITE") {
>> route(3);
>> break;
>> } else if (method=="REGISTER") {
>> route(2);
>> break;
>> };
>> lookup("aliases");
>> if (uri!=myself) {
>> route(4);
>> route(1);
>> break;
>> };
>> if (!lookup("location")) {
>> sl_send_reply("404", "User Not Found");
>> break;
>> };
>> route(1);
>> }
>> route[1] {
>> # -----------------------------------------------------------------
>> # Default Message Handler
>> # -----------------------------------------------------------------
>> t_on_reply("1");
>> if (!t_relay()) {
>> if (method=="INVITE" || method=="ACK") {
>> end_media_session();
>> };
>> sl_reply_error();
>> };
>> }
>> route[2] {
>> # -----------------------------------------------------------------
>> # REGISTER Message Handler
>> # ----------------------------------------------------------------
>> sl_send_reply("100", "Trying");
>> if (!search("^Contact:[ ]*\*") && client_nat_test("7")) {
>> setflag(6);
>> fix_nated_register();
>> force_rport();
>> };
>> if (!www_authorize("","subscriber")) {
>> www_challenge("","0");
>> break;
>> };
>> if (!check_to()) {
>> sl_send_reply("401", "Unauthorized");
>> break;
>> };
>> consume_credentials();
>> if (!save("location")) {
>> sl_reply_error();
>> };
>> }
>> route[3] {
>> # -----------------------------------------------------------------
>> # INVITE Message Handler
>> # -----------------------------------------------------------------
>> log (1,"------------route[3]:INVITE handler \n");
>> #if (allow_trusted()) {log(1,"------------route[3]:User is
>> trusted\n");} ;
>> #check if NATed caller
>> if (!search("^Contact:[ ]*\*") && client_nat_test("7")) {
>> log (1,"------------route[3]:fixing NAT info \n");
>> setflag(6);
>> force_rport();
>> fix_nated_contact();
>> };
>> if (!allow_trusted()) {
>> if (!proxy_authorize("","subscriber")) {
>> #log (1,"route[3]:User did not authorise! \n");
>> proxy_challenge("","1");
>> #log (1,"route[3]:Sent error 401");
>> break;
>> } else if (!check_from()) {
>> log (1,"route[3]: 403 error \n");
>> sl_send_reply("403", "Use From=ID");
>> break;
>> };
>> log (1,"route[3]:Consuming credentials.....\n");
>> consume_credentials();
>> };
>> if (client_nat_test("3")) {
>> setflag(7);
>> force_rport();
>> };
>> #Strip prefix 00357 , 357
>> if (uri=~"^sip:00357[0-9]{8}@") {
>> strip(5);
>> }
>> else if ( uri=~"^sip:357[0-9]{8}@") {
>> strip(3);
>> };
>> lookup("aliases");
>> if (uri!=myself) {
>> route(4);
>> route(1);
>> break;
>> };
>> if (uri=~"^sip:00[1-9]*@") { # International PSTN 00*
>> route(4);
>> route(5);
>> break;
>> };
>> if (!lookup("location")) {
>> if (uri=~"^sip:[0-9]{8}@") { # Domestic PSTN 2???????
>> route(4);
>> route(5);
>> break;
>> };
>> sl_send_reply("404", "User Not Found");
>> break;
>> };
>> route(4);
>> route(1);
>> }
>> route[4] {
>> # -----------------------------------------------------------------
>> # NAT Traversal Section
>> # -----------------------------------------------------------------
>> if (isflagset(6) || isflagset(7)) {
>> use_media_proxy();
>> };
>> }
>> route[5] {
>> # -----------------------------------------------------------------
>> # PSTN Handler
>> # -----------------------------------------------------------------
>> #Change the destination so it points to PGW
>> rewritehost("213.207.***.***"); # INSERT YOUR PSTN GATEWAY IP ADDRESS
>> avp_write("i:45", "inv_timeout");
>> route(4);
>> route(1);
>> }
>>
>>
>> onreply_route[1] {
>> if ((isflagset(6) || isflagset(7)) &&
>> (status=~"(180)|(183)|2[0-9][0-9]")) {
>> if (!search("^Content-Length:[ ]*0")) {
>> use_media_proxy();
>> };
>> };
>> if (client_nat_test("1")) {
>> fix_nated_contact();
>> };
>> }
>>
>>
>>
>>
>> ====================================================================================================
>>
>> Packets for failed call behind NAT:
>> ====================================================================================================
>>
>>
>> ΤΓ²΅����������??�����
>> ½qC~ΐ
>> �ζ��ζ���ώ-Bΰ�LυE�E�Ψ�D��pΜΥΟ�²ΥΟ�³ΔΔΔ�&INVITE
>> sip:99389683 at 213.207.141.179 SIP/2.0
>> Via: SIP/2.0/UDP 192.168.1.6:5060;branch=z9hG4bKfmqE9mAxO4AVb1rE
>> Max-Forwards: 70
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 192.168.1.6:5060>
>> Proxy-Authorization: Digest username="22000002",
>> realm="213.207.141.179",
>> nonce="4371b5e37010200b061c47bdd2b9e553e3b7128a1",
>> uri="sip:99389683 at 213.207.141.179", qop=auth, nc=00000001,
>> cnonce="0a4f113b", response="805a849373492c421c9397d1621239b5"
>> CSeq: 2 INVITE
>> Content-Type: application/sdp
>> Content-Length: 292
>> v=0
>> o=22000002 80268421 80523176 IN IP4 192.168.1.6
>> s=SIP CALL
>> c=IN IP4 192.168.1.6
>> t=0 0
>> m=audio 11722 RTP/AVP 18 4 0 8 3 97
>> a=rtpmap:18 G729/8000
>> a=rtpmap:4 G723/8000
>> a=rtpmap:0 PCMU/8000
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:3 GSM/8000
>> a=rtpmap:97 telephone-event/8000
>> a=fmtp:97 0-15
>>
>> ½qCw
>> zzLυE�ώ-Bΰ�El�?@�@pγΥΟ�³ΥΟ�²ΔΔXΙnSIP/2.0 100
>> trying -- your call is important to us
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;branch=z9hG4bKfmqE9mAxO4AVb1rE;rport=5060;received=213.207.141.178
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Server: Sip EXpress router (0.9.3 (i386/linux))
>> Content-Length: 0
>> Warning: 392 213.207.141.179:5060 "Noisy feedback tells: pid=8885
>> req_src_ip=213.207.141.178 req_src_port=5060
>> in_uri=sip:99389683 at 213.207.141.179 out_uri=sip:99389683 at 213.207.144.6
>> via_cnt==1"
>>
>> ½qCρ
>> �Δ��Δ���ΉR.��ώ-Bΰ�E?��@�@mDΥΟ�³ΥΟ�ΔΔΆΝ
>>
>> INVITE sip:99389683 at 213.207.144.6 SIP/2.0
>> Record-Route:
>> <sip:99389683 at 213.207.141.179:5060;nat=yes;ftag=vW5KTCrnEpud7yyE;lr=on>
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bK6f55.cba0c054.0
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> Max-Forwards: 16
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 213.207.141.178:5060>
>> CSeq: 2 INVITE
>> Content-Type: application/sdp
>> Content-Length: 316
>> v=0
>> o=22000002 80268421 80523176 IN IP4 192.168.1.6
>> s=SIP CALL
>> c=IN IP4 213.207.141.179213.207.141.179
>> t=0 0
>> m=audio 3506435064 RTP/AVP 18 4 0 8 3 97
>> a=rtpmap:18 G729/8000
>> a=rtpmap:4 G723/8000
>> a=rtpmap:0 PCMU/8000
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:3 GSM/8000
>> a=rtpmap:97 telephone-event/8000
>> a=fmtp:97 0-15
>>
>> ½qCy1
>> Δ��Δ���ΉR.��ώ-Bΰ�E?<@@mCΥΟ�³ΥΟ�ΔΔΆΝ
>> INVITE sip:99389683 at 213.207.144.6 SIP/2.0
>> Record-Route:
>> <sip:99389683 at 213.207.141.179:5060;nat=yes;ftag=vW5KTCrnEpud7yyE;lr=on>
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bK6f55.cba0c054.0
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> Max-Forwards: 16
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 213.207.141.178:5060>
>> CSeq: 2 INVITE
>> Content-Type: application/sdp
>> Content-Length: 316
>> v=0
>> o=22000002 80268421 80523176 IN IP4 192.168.1.6
>> s=SIP CALL
>> c=IN IP4 213.207.141.179213.207.141.179
>> t=0 0
>> m=audio 3506435064 RTP/AVP 18 4 0 8 3 97
>> a=rtpmap:18 G729/8000
>> a=rtpmap:4 G723/8000
>> a=rtpmap:0 PCMU/8000
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:3 GSM/8000
>> a=rtpmap:97 telephone-event/8000
>> a=fmtp:97 0-15
>>
>> ½qCh
>> ΄��΄���ώ-Bΰ�ΉR.��E�¦f~@�ϋNoΥΟ�ΥΟ�³ΔΔ'^
>> SIP/2.0 100 Trying
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bK6f55.cba0c054.0
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Content-Length: 0
>>
>> ½qC�ο��΄��΄���ώ-Bΰ�ΉR.��E�¦f@�ϋNnΥΟ�ΥΟ�³ΔΔ'^
>> SIP/2.0 100 Trying
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bK6f55.cba0c054.0
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Content-Length: 0
>>
>> ½qCΎΊ�ξ��ξ���ώ-Bΰ�ΉR.��E�ΰf?@ϋN3ΥΟ�ΥΟ�³ΔΔΜ"SIP/2.0
>> 503 Service Unavailable
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bK6f55.cba0c054.0
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Contact: <sip:99389683 at 213.207.144.6:5060>
>> Content-Length: 0
>>
>> ½qCe»""ΉR.��ώ-Bΰ�E.��@�@osΥΟ�³ΥΟ�ΔΔqΚΫACK
>> sip:99389683 at 213.207.144.6 SIP/2.0
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bK6f55.cba0c054.0
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> CSeq: 2 ACK
>> User-Agent: Sip EXpress router(0.9.3 (i386/linux))
>> Content-Length: 0
>>
>> ½qC>»RRLυE�ώ-Bΰ�E �@@q«ΥΟ�³ΥΟ�²ΔΔ�ΘΆSIP/2.0 503
>> Service Unavailable
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Contact: <sip:99389683 at 213.207.144.6:5060>
>> Content-Length: 0
>>
>> ½qCn��?��?���ώ-Bΰ�LυE�E���E��r
>> ΥΟ�²ΥΟ�³ΔΔ�"ACK sip:99389683 at 213.207.141.179 SIP/2.0
>> Via: SIP/2.0/UDP 192.168.1.6:5060;branch=z9hG4bKfmqE9mAxO4AVb1rE
>> Max-Forwards: 70
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 192.168.1.6:5060>
>> Proxy-Authorization: Digest username="22000002",
>> realm="213.207.141.179",
>> nonce="4371be370510200b061c47bdd2b9e553e3b7128a1",
>> uri="sip:99389683 at 213.207.141.179", qop=auth, nc=00000001,
>> cnonce="0a4f113b", response="805a849373492c421c9397d1621239b5"
>> CSeq: 2 ACK
>> Content-Length: 0
>>
>> ½qCΕ8
>> �RRLυE�ώ-Bΰ�E ��@�@q?ΥΟ�³ΥΟ�²ΔΔ�ΘΆSIP/2.0
>> 503 Service Unavailable
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Contact: <sip:99389683 at 213.207.144.6:5060>
>> Content-Length: 0
>>
>> ½qCγέ
>> �?��?���ώ-Bΰ�LυE�E���F��rΥΟ�²ΥΟ�³ΔΔ�"ACK
>> sip:99389683 at 213.207.141.179 SIP/2.0
>> Via: SIP/2.0/UDP 192.168.1.6:5060;branch=z9hG4bKfmqE9mAxO4AVb1rE
>> Max-Forwards: 70
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 192.168.1.6:5060>
>> Proxy-Authorization: Digest username="22000002",
>> realm="213.207.141.179",
>> nonce="4371be370105200b061c47bdd2b9e553e3b7128a1",
>> uri="sip:99389683 at 213.207.141.179", qop=auth, nc=00000001,
>> cnonce="0a4f113b", response="805a849373492c421c9397d1621239b5"
>> CSeq: 2 ACK
>> Content-Length: 0
>> ½qC3G
>> RRLυE�ώ-Bΰ�E �@@q©ΥΟ�³ΥΟ�²ΔΔ�ΘΆSIP/2.0 503 Service
>> Unavailable
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Contact: <sip:99389683 at 213.207.144.6:5060>
>> Content-Length: 0
>> ½qC.κ
>> �?��?���ώ-Bΰ�LυE�E���G��rΥΟ�²ΥΟ�³ΔΔ�"ACK
>> sip:99389683 at 213.207.141.179 SIP/2.0
>> Via: SIP/2.0/UDP 192.168.1.6:5060;branch=z9hG4bKfmqE9mAxO4AVb1rE
>> Max-Forwards: 70
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 192.168.1.6:5060>
>> Proxy-Authorization: Digest username="22000002",
>> realm="213.207.141.179",
>> nonce="4371be370102005b061c47bdd2b9e553e3b7128a1",
>> uri="sip:99389683 at 213.207.141.179", qop=auth, nc=00000001,
>> cnonce="0a4f113b", response="805a849373492c421c9397d1621239b5"
>> CSeq: 2 ACK
>> Content-Length: 0
>> ½qCd
>> RRLυE�ώ-Bΰ�E �@@q¨ΥΟ�³ΥΟ�²ΔΔ�ΘΆSIP/2.0 503 Service
>> Unavailable
>> Via: SIP/2.0/UDP
>> 192.168.1.6:5060;rport=5060;received=213.207.141.178;branch=z9hG4bKfmqE9mAxO4AVb1rE
>>
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> CSeq: 2 INVITE
>> Contact: <sip:99389683 at 213.207.144.6:5060>
>> Content-Length: 0
>> ½qCA�?��?���ώ-Bΰ�LυE�E���H��rΥΟ�²ΥΟ�³ΔΔ�"ACK
>> sip:99389683 at 213.207.141.179 SIP/2.0
>> Via: SIP/2.0/UDP 192.168.1.6:5060;branch=z9hG4bKfmqE9mAxO4AVb1rE
>> Max-Forwards: 70
>> User-Agent: PA168S
>> From: "22000002" <sip:22000002 at 213.207.141.179>;tag=vW5KTCrnEpud7yyE
>> To: "99389683" <sip:99389683 at 213.207.141.179>;tag=1367353431
>> Call-ID: Ra1xPN5naYXRZN67 at 192.168.1.6
>> Contact: <sip:22000002 at 192.168.1.6:5060>
>> Proxy-Authorization: Digest username="22000002",
>> realm="213.207.141.179",
>> nonce="4371be370102005b061c47bdd2b9e553e3b7128a1",
>> uri="sip:99389683 at 213.207.141.179", qop=auth, nc=00000001,
>> cnonce="0a4f113b", response="805a849373492c421c9397d1621239b5"
>> CSeq: 2 ACK
>> Content-Length: 0
>>
>>
>>
>>
>>
>>
>>
>> ====================================================================================================
>>
>> Packets for successful call from public IP:
>> ====================================================================================================
>>
>> ΤΓ²΅����������??�����½qCjlΏ��Ώ���ώ-Bΰ�ΪβΗ�Eh±%*ϊΟ΅ΥΟ�?ΥΟ�³ΔΔ��ίINVITE
>> sip:22372673 at 213.207.141.179 SIP/2.0
>>
>> Via: SIP/2.0/UDP 213.207.141.181:5060;branch=z9hG4bK-896914ce
>>
>> From: Kyriakos <sip:22000001 at 213.207.141.179>;tag=2f2e13766c08ee3ao0
>>
>> To: <sip:22372673 at 213.207.141.179>
>>
>> Call-ID: fa843926-7b99844a at 213.207.141.181
>>
>> CSeq: 102 INVITE
>>
>> Max-Forwards: 70
>>
>> Proxy-Authorization: Digest
>> username="22000001",realm="213.207.141.179",nonce="4371be42f095d84938c2b65fb9b1d879749453b6e",uri="sip:22372673 at 213.207.141.179",algorithm=MD5,response="cf863bab65ffbaf6376746eb76cd127c",qop=auth,nc=00000001,cnonce="32d92d6b"
>>
>>
>> Contact: Kyriakos <sip:22000001 at 213.207.141.181:5060>
>>
>> Expires: 240
>>
>> User-Agent: Sipura/SPA841-3.1.1(a)
>>
>> Content-Length: 403
>>
>> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER
>>
>> Content-Type: application/sdp
>>
>> v=0
>>
>> o=- 8038585 8038585 IN IP4 213.207.141.181
>>
>> s=-
>>
>> c=IN IP4 213.207.141.181
>>
>> t=0 0
>>
>> m=audio 16460 RTP/AVP 0 2 4 8 18 96 97 98 101
>>
>> a=rtpmap:0 PCMU/8000
>>
>> a=rtpmap:2 G726-32/8000
>>
>> a=rtpmap:4 G723/8000
>>
>> a=rtpmap:8 PCMA/8000
>>
>> a=rtpmap:18 G729a/8000
>>
>> a=rtpmap:96 G726-40/8000
>>
>> a=rtpmap:97 G726-24/8000
>>
>> a=rtpmap:98 G726-16/8000
>>
>> a=rtpmap:101 telephone-event/8000
>>
>> a=fmtp:101 0-15
>>
>> a=ptime:30
>>
>> a=sendrecv
>>
>> ½qCoOOΪβΗ�ώ-Bΰ�EA�'@�@qΥΟ�³ΥΟ�?ΔΔ-ΙFSIP/2.0 100
>> trying -- your call is important to us
>>
>> Via: SIP/2.0/UDP 213.207.141.181:5060;branch=z9hG4bK-896914ce
>>
>> From: Kyriakos <sip:22000001 at 213.207.141.179>;tag=2f2e13766c08ee3ao0
>>
>> To: <sip:22372673 at 213.207.141.179>
>>
>> Call-ID: fa843926-7b99844a at 213.207.141.181
>>
>> CSeq: 102 INVITE
>>
>> Server: Sip EXpress router (0.9.3 (i386/linux))
>>
>> Content-Length: 0
>>
>> Warning: 392 213.207.141.179:5060 "Noisy feedback tells: pid=8885
>> req_src_ip=213.207.141.181 req_src_port=5060
>> in_uri=sip:22372673 at 213.207.141.179 out_uri=sip:22372673 at 213.207.144.6
>> via_cnt==1"
>>
>> ½qC[oAAΉR.��ώ-Bΰ�E3�"@�@lΎΥΟ�³ΥΟ�ΔΔΝ?INVITE
>> sip:22372673 at 213.207.144.6 SIP/2.0
>>
>> Record-Route: <sip:213.207.141.179;ftag=2f2e13766c08ee3ao0;lr=on>
>>
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bKc56.673dbf01.0
>>
>> Via: SIP/2.0/UDP 213.207.141.181:5060;branch=z9hG4bK-896914ce
>>
>> From: Kyriakos <sip:22000001 at 213.207.141.179>;tag=2f2e13766c08ee3ao0
>>
>> To: <sip:22372673 at 213.207.141.179>
>>
>> Call-ID: fa843926-7b99844a at 213.207.141.181
>>
>> CSeq: 102 INVITE
>>
>> Max-Forwards: 16
>>
>> Contact: Kyriakos <sip:22000001 at 213.207.141.181:5060>
>>
>> Expires: 240
>>
>> User-Agent: Sipura/SPA841-3.1.1(a)
>>
>> Content-Length: 403
>>
>> Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER
>>
>> Content-Type: application/sdp
>>
>> v=0
>>
>> o=- 8038585 8038585 IN IP4 213.207.141.181
>>
>> s=-
>>
>> c=IN IP4 213.207.141.181
>>
>> t=0 0
>>
>> m=audio 16460 RTP/AVP 0 2 4 8 18 96 97 98 101
>>
>> a=rtpmap:0 PCMU/8000
>>
>> a=rtpmap:2 G726-32/8000
>>
>> a=rtpmap:4 G723/8000
>>
>> a=rtpmap:8 PCMA/8000
>>
>> a=rtpmap:18 G729a/8000
>>
>> a=rtpmap:96 G726-40/8000
>>
>> a=rtpmap:97 G726-24/8000
>>
>> a=rtpmap:98 G726-16/8000
>>
>> a=rtpmap:101 telephone-event/8000
>>
>> a=fmtp:101 0-15
>>
>> a=ptime:30
>>
>> a=sendrecv
>>
>> ½qCΏα��������ώ-Bΰ�ΉR.��E�zf�@�ϋN�ΥΟ�ΥΟ�³ΔΔf"QSIP/2.0
>> 100 Trying
>>
>> Via: SIP/2.0/UDP 213.207.141.179;branch=z9hG4bKc56.673dbf01.0
>>
>> Via: SIP/2.0/UDP 213.207.141.181:5060;branch=z9hG4bK-896914ce
>>
>> From: Kyriakos <sip:22000001 at 213.207.141.179>;tag=2f2e13766c08ee3ao0
>>
>> To: <sip:22372673 at 213.207.141.179>;tag=1367353431
>>
>> Call-ID: fa843926-7b99844a at 213.207.141.181
>>
>> CSeq: 102 INVITE
>>
>> Content-Length: 0
>>
>>
>>
>> _______________________________________________
>> Serusers mailing list
>> serusers at lists.iptel.org
>> http://lists.iptel.org/mailman/listinfo/serusers
>>
>
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> serusers at lists.iptel.org
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