Thanks, but that's not the problem, i'm sure that ACK hits a t_relay, it has to be another thing.

Hi!

Make sure the ACK hits a t_relay.

regards, klaus

jero wrote:

...

I've a problem with SER forwarding ACK's when a call has stablished. I only need to make outbound call from sip-phone, every call has to be redirected to AS5300. These are the packets sended:

SIP-PHONE -----------> SER -------------> AS5300 ------>PSTN _________________________________________________

|-----invite------->|                   |
|<----trying--------|                   |
|                   |-----invite------->|
|                   |<----trying--------|
|                   |<----ringing-------|
|<----ringing-------|                   |
|                   |<------ok----------|
|<------ok----------|                   |
|-------*ack*------>|                   | <--here is the problem    
|                   |                   |
|                   |<------ok----------|
|<------ok----------|                   |
|                   |<------ok----------|
|<------ok----------|                   |
|                   |                 timeout

As seen, the ack looses in SER and is not sended to AS5300, the call is stablished, but after 20 seconds is dropped by as5300 because of the timeout. I've read the messages on this forum about this, and it seems to be a misconfiguration problem, but i didn't find the solution.

Here is mi ser.cfg and a more detailed trace of the packets.

SIP-PHONE - 81.37.111.201 SER - 196.220.57.58 AS5300 - 196.220.57.51

# # $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/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/acc.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)

# -- rr params -- # add value to ;lr param to make some broken UAs happy modparam("rr", "enable_full_lr", 1)

# -- acc params -- # set the reporting log level modparam("acc", "log_level", 1) # number of flag, which will be used for accounting; if a message is # labeled with this flag, its completion status will be reported modparam("acc", "log_flag", 1 ) modparam("acc", "radius_config", "/usr/local/etc/radiusclient/radiusclient.conf") modparam("acc", "radius_flag", 1) modparam("acc", "radius_missed_flag", 2) # ------------------------- request routing logic -------------------

# main routing logic alias="196.220.57.58"

route{

# 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 ( msg:len > max_len ) { sl_send_reply("513", "Message too big"); break; };

# Lots deleted, such as processing registrations
# we record-route all messages -- to make sure that
# subsequent messages will go through our proxy.
if(method=="INVITE"){ record_route(); }
# loose-route processing
if (loose_route()) {
    t_relay();
    break;
};

if(uri==myself){
	if(method=="REGISTER"){
save("location");
break;

} }

# IF HOST IS JUST NUMBERS SEND TO route(1) 
if (uri =~ "^sip:[0-9]*@"){
    log(1, "SER: matched ^sip:[0-9]*@ - just numbers - process in

route(3)\n"); route(1); break; };

}

route[1] {

rewritehostport("196.220.57.51:5060");
setflag(1);
t_relay();
break;

}

##########################################################################

Packet trace

##########################################################################

No. Time Source Destination Protocol Info 5053 17.486988 81.37.111.201 196.220.57.58 SIP/SDP Request: INVITE sip:607628000@196.220.57.58, with session description

Internet Protocol, Src Addr: 81.37.111.201 (81.37.111.201), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Request-Line: INVITE sip:607628000@196.220.57.58 SIP/2.0 Message Header From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58 Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 1 INVITE Via: SIP/2.0/UDP 192.168.1.41:5060;branch=z9hG4bK-3e951-f479ae6-2caf Max-Forwards: 70 Supported: replaces User-Agent: FXS_GW (4asipfxs.108a) Contact: sip:777910020@81.37.111.201:5060 Content-Type: application/SDP Content-Length: 286 Message body

No. Time Source Destination Protocol Info 5054 17.491678 196.220.57.58 81.37.111.201 SIP Status: 100 trying -- your call is important to us

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 100 trying -- your call is important to us Message Header From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58 Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 1 INVITE Via: SIP/2.0/UDP 192.168.1.41:5060;branch=z9hG4bK-3e951-f479ae6-2caf;received=81.37.111.201 Server: Sip EXpress router (0.9.0 (i386/linux)) Content-Length: 0 Warning: 392 196.220.57.58:5060 "Noisy feedback tells: pid=1024 req_src_ip=81.37.111.201 req_src_port=5060 in_uri=sip:607628000@196.220.57.58 out_uri=sip:607628000@196.220.57.51:5060 via_cnt==1"

No. Time Source Destination Protocol Info 5058 17.494454 196.220.57.58 196.220.57.51 SIP/SDP Request: INVITE sip:607628000@196.220.57.51:5060, with session description

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 196.220.57.51 (196.220.57.51) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Request-Line: INVITE sip:607628000@196.220.57.51:5060 SIP/2.0 Message Header Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58 Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 1 INVITE Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0 Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf Max-Forwards: 16 Supported: replaces User-Agent: FXS_GW (4asipfxs.108a) Contact: sip:777910020@81.37.111.201:5060 Content-Type: application/SDP Content-Length: 286 Message body

No. Time Source Destination Protocol Info 5063 17.508105 196.220.57.51 196.220.57.58 SIP Status: 100 Trying

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 100 Trying Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow-Events: telephone-event Content-Length: 0

No. Time Source Destination Protocol Info 8037 28.278422 196.220.57.51 196.220.57.58 SIP Status: 180 Ringing

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 180 Ringing Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Length: 0

No. Time Source Destination Protocol Info 8038 28.279923 196.220.57.58 81.37.111.201 SIP Status: 180 Ringing

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 180 Ringing Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Length: 0

No. Time Source Destination Protocol Info 9791 33.535713 196.220.57.51 196.220.57.58 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 9794 33.537703 196.220.57.58 81.37.111.201 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 9956 34.033762 196.220.57.51 196.220.57.58 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 9957 34.035211 196.220.57.58 81.37.111.201 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 9958 34.045266 81.37.111.201 196.220.57.58 SIP Request: ACK sip:607628000@196.220.57.51:5060

Internet Protocol, Src Addr: 81.37.111.201 (81.37.111.201), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Request-Line: ACK sip:607628000@196.220.57.51:5060 SIP/2.0 Message Header From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 1 ACK Via: SIP/2.0/UDP 192.168.1.41:5060;branch=z9hG4bK-3e962-f47db5a-57d8 Max-Forwards: 70 User-Agent: FXS_GW (4asipfxs.108a) Contact: sip:777910020@81.37.111.201:5060 Route: sip:196.220.57.58;lr;ftag=c0a80129-13c4-3e951-f479ae6-6c8e Content-Length: 0

No. Time Source Destination Protocol Info 10269 35.033720 196.220.57.51 196.220.57.58 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 10271 35.035346 196.220.57.58 81.37.111.201 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 10791 36.690602 196.220.57.51 81.37.111.201 RTCP Sender Report

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 19343 (19343), Dst Port: 16385 (16385) Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Reception report count: 1 Packet type: Sender Report (200) Length: 12 Sender SSRC: 459946035 Timestamp, MSW: 3327900282 Timestamp, LSW: 356227917 RTP timestamp: 0 Sender's packet count: 52 Sender's octet count: 3011 Source 1 Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Source count: 1 Packet type: Source description (202) Length: 19 Chunk 1, SSRC/CSRC 459946035

No. Time Source Destination Protocol Info 10894 37.033690 196.220.57.51 196.220.57.58 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 10895 37.035934 196.220.57.58 81.37.111.201 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 11726 40.222188 196.220.57.51 81.37.111.201 RTCP Sender Report

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 19343 (19343), Dst Port: 16385 (16385) Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Reception report count: 1 Packet type: Sender Report (200) Length: 12 Sender SSRC: 459946035 Timestamp, MSW: 3327900285 Timestamp, LSW: 2639679338 RTP timestamp: 0 Sender's packet count: 102 Sender's octet count: 5715 Source 1 Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Source count: 1 Packet type: Source description (202) Length: 19 Chunk 1, SSRC/CSRC 459946035

No. Time Source Destination Protocol Info 12971 44.392482 196.220.57.51 81.37.111.201 RTCP Sender Report

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 19343 (19343), Dst Port: 16385 (16385) Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Reception report count: 1 Packet type: Sender Report (200) Length: 12 Sender SSRC: 459946035 Timestamp, MSW: 3327900289 Timestamp, LSW: 3371471883 RTP timestamp: 0 Sender's packet count: 108 Sender's octet count: 6075 Source 1 Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Source count: 1 Packet type: Source description (202) Length: 19 Chunk 1, SSRC/CSRC 459946035

No. Time Source Destination Protocol Info 13187 45.033530 196.220.57.51 196.220.57.58 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK3e84.b6c26904.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 13188 45.034943 196.220.57.58 81.37.111.201 SIP/SDP Status: 200 OK, with session description

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 200 OK Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e951-f479ae6-2caf From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Date: Thu, 16 Jun 2005 08:44:22 GMT Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 Server: Cisco-SIPGateway/IOS-12.x CSeq: 1 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Contact: sip:607628000@196.220.57.51:5060 Record-Route: sip:196.220.57.58;ftag=c0a80129-13c4-3e951-f479ae6-6c8e;lr=on Content-Type: application/sdp Content-Length: 229 Message body

No. Time Source Destination Protocol Info 14829 50.802294 196.220.57.51 81.37.111.201 RTCP Sender Report

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 19343 (19343), Dst Port: 16385 (16385) Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Reception report count: 1 Packet type: Sender Report (200) Length: 12 Sender SSRC: 459946035 Timestamp, MSW: 3327900296 Timestamp, LSW: 837215452 RTP timestamp: 0 Sender's packet count: 203 Sender's octet count: 11330 Source 1 Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Source count: 1 Packet type: Source description (202) Length: 19 Chunk 1, SSRC/CSRC 459946035

No. Time Source Destination Protocol Info 15481 53.037113 196.220.57.51 81.37.111.201 RTCP Receiver Report

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 19343 (19343), Dst Port: 16385 (16385) Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Reception report count: 1 Packet type: Receiver Report (201) Length: 7 Sender SSRC: 459946035 Source 1 Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Source count: 1 Packet type: Source description (202) Length: 7 Chunk 1, SSRC/CSRC 459946035 Real-time Transport Control Protocol Stream setup by SDP (frame 5058) 10.. .... = Version: RFC 1889 Version (2) ..0. .... = Padding: False ...0 0001 = Source count: 1 Packet type: Goodbye (203) Length: 1 Identifier: 459946035

No. Time Source Destination Protocol Info 17285 59.087291 81.37.111.201 196.220.57.58 SIP Request: BYE sip:607628000@196.220.57.51:5060

Internet Protocol, Src Addr: 81.37.111.201 (81.37.111.201), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Request-Line: BYE sip:607628000@196.220.57.51:5060 SIP/2.0 Message Header From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 2 BYE Via: SIP/2.0/UDP 192.168.1.41:5060;branch=z9hG4bK-3e97b-f483cd0-e16 Max-Forwards: 70 Supported: replaces User-Agent: FXS_GW (4asipfxs.108a) Route: sip:196.220.57.58;lr;ftag=c0a80129-13c4-3e951-f479ae6-6c8e Content-Length: 0

No. Time Source Destination Protocol Info 17286 59.090474 196.220.57.58 196.220.57.51 SIP Request: BYE sip:607628000@196.220.57.51:5060

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 196.220.57.51 (196.220.57.51) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Request-Line: BYE sip:607628000@196.220.57.51:5060 SIP/2.0 Message Header From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 2 BYE Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK0e84.aed52364.0 Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e97b-f483cd0-e16 Max-Forwards: 16 Supported: replaces User-Agent: FXS_GW (4asipfxs.108a) Content-Length: 0

No. Time Source Destination Protocol Info 17289 59.094579 196.220.57.51 196.220.57.58 SIP Status: 481 Call Leg/Transaction Does Not Exist

Internet Protocol, Src Addr: 196.220.57.51 (196.220.57.51), Dst Addr: 196.220.57.58 (196.220.57.58) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 481 Call Leg/Transaction Does Not Exist Message Header Via: SIP/2.0/UDP 196.220.57.58;branch=z9hG4bK0e84.aed52364.0,SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e97b-f483cd0-e16 From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 2 BYE Content-Length: 0

No. Time Source Destination Protocol Info 17290 59.096162 196.220.57.58 81.37.111.201 SIP Status: 481 Call Leg/Transaction Does Not Exist

Internet Protocol, Src Addr: 196.220.57.58 (196.220.57.58), Dst Addr: 81.37.111.201 (81.37.111.201) User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060) Session Initiation Protocol Status-Line: SIP/2.0 481 Call Leg/Transaction Does Not Exist Message Header Via: SIP/2.0/UDP 192.168.1.41:5060;received=81.37.111.201;branch=z9hG4bK-3e97b-f483cd0-e16 From: "777910020"sip:777910020@196.220.57.58;tag=c0a80129-13c4-3e951-f479ae6-6c8e To: sip:607628000@196.220.57.58;tag=2A3EE1E8-F7B Call-ID: 569ecc-c0a80129-13c4-3e951-f479ae1-4390@196.220.57.58 CSeq: 2 BYE Content-Length: 0

##############################################################################

One more thing, when looking at ser debug, after receiving the ACK from SIP-PHONE a line shows the following message:

DEBUG : sl_filter_ACK: to late to be a local ACK!

Please any help will be appreciated. Thanks.

---

Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

I made SER forward that ACK by removing the "setflag(1)" command from ser.cfg, now calls aren't dropped down, i know that it sounds strange but it's true and i can't understand why that command was the problem. Now i need to account calls but i can't use the setflag command. Any thoughts?

-Jero.

Hello jero,

Try to allow a record route for all requests, not only INVITES (except REGISTER).

Thursday, June 16, 2005 3:03:35 PM, you wrote:

j> Thanks, but that's not the problem, i'm sure that ACK hits a t_relay, it j> has to be another thing.

...

...

Hi!

Make sure the ACK hits a t_relay.

regards, klaus

jero wrote:

...

I've a problem with SER forwarding ACK's when a call has stablished. I only need to make outbound call from sip-phone, every call has to be redirected to AS5300. These are the packets sended:

SIP-PHONE -----------> SER -------------> AS5300 ------>PSTN _________________________________________________

|-----invite------->|                   |
|<----trying--------|                   |
|                   |-----invite------->|
|                   |<----trying--------|
|                   |<----ringing-------|
|<----ringing-------|                   |
|                   |<------ok----------|
|<------ok----------|                   |
|-------*ack*------>|                   | <--here is the problem
|                   |                   |
|                   |<------ok----------|
|<------ok----------|                   |
|                   |<------ok----------|
|<------ok----------|                   |
|                   |                 timeout

As seen, the ack looses in SER and is not sended to AS5300, the call is stablished, but after 20 seconds is dropped by as5300 because of the timeout. I've read the messages on this forum about this, and it seems to be a misconfiguration problem, but i didn't find the solution.

Here is mi ser.cfg and a more detailed trace of the packets.

SIP-PHONE - 81.37.111.201 SER - 196.220.57.58 AS5300 - 196.220.57.51

# # $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/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/acc.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)

# -- rr params -- # add value to ;lr param to make some broken UAs happy modparam("rr", "enable_full_lr", 1)

# -- acc params -- # set the reporting log level modparam("acc", "log_level", 1) # number of flag, which will be used for accounting; if a message is # labeled with this flag, its completion status will be reported modparam("acc", "log_flag", 1 ) modparam("acc", "radius_config", "/usr/local/etc/radiusclient/radiusclient.conf") modparam("acc", "radius_flag", 1) modparam("acc", "radius_missed_flag", 2) # ------------------------- request routing logic -------------------

# main routing logic alias="196.220.57.58"

route{

# 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 ( msg:len > max_len ) {
            sl_send_reply("513", "Message too big");
            break;
    };

# Lots deleted, such as processing registrations
# we record-route all messages -- to make sure that
# subsequent messages will go through our proxy.
if(method=="INVITE"){ record_route(); }
# loose-route processing
if (loose_route()) {
    t_relay();
    break;
};

if(uri==myself){
        if(method=="REGISTER"){
        save("location");
        break;
}
}

# IF HOST IS JUST NUMBERS SEND TO route(1) 
if (uri =~ "^sip:[0-9]*@"){
    log(1, "SER: matched ^sip:[0-9]*@ - just numbers - process in

route(3)\n"); route(1); break; };

}

route[1] {

rewritehostport("196.220.57.51:5060");
setflag(1);
t_relay();
break;

}

j> _______________________________________________ j> Serusers mailing list j> serusers@lists.iptel.org j> http://lists.iptel.org/mailman/listinfo/serusers

-- Mike Tkachuk