Hello,

Thank you for your answer.

My server is a centos with public ip. I'm using chrome with jssip framework for sip client - tried sipml5 also. I have attached to this e-mail my kamailio configuration.

Regarding the kamailio + mediaproxy-ng I took the latest versions from git - also tried with kamailio 4.1.1. The mediaproxy-ng I'm running using the command: /tmp/mediaproxy-ng/daemon/mediaproxy-ng --ip=PUBLIC_IP --listen-ng=127.0.0.1:2222

I also tried the following configuration and I have the same error:

route {

......................

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

# Use RTP-Proxy

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

#if (!rtpproxy_offer("arf")) {

# sl_send_reply("503", "No RTP-Relay available");

# exit;

if (is_method("INVITE")) {

if (sdp_content()) {

if (rtpproxy_offer())

rtpproxy_manage("cowf","PUBLIC_IP");

t_on_reply("1");

}

} else {

if (sdp_content()) {

if (rtpproxy_offer())

rtpproxy_manage("cowf","PUBLIC_IP");

}

if (is_method("ACK") && sdp_content()) {

rtpproxy_answer();

rtpproxy_manage("cowf","PUBLIC_IP");

}

#t_on_reply("1");

# Relay this statefully

t_relay();

...............................................................

*******************************************************************

onreply_route[1] {

if ((($Rp == MY_WS_PORT || $Rp == MY_WSS_PORT)

&& !(proto == WS || proto == WSS)) || $Rp == MY_MSRP_PORT) {

xlog("L_WARN", "SIP response received on $Rp\n");

drop;

exit;

}

if (nat_uac_test(64)) {

# Do NAT traversal stuff for replies to a WebSocket connection

# - even if it is not behind a NAT!

# This won't be needed in the future if Kamailio and the

# WebSocket client support Outbound and Path.

add_contact_alias();

}

# A Transaction from a NATed Client to a NATed Client? Use the RTP-Proxy!

if (status=~"(180)|(183)|(2[0-9][0-9])") {

fix_nated_contact();

if (sdp_content()) {

rtpproxy_answer();

}

If my problem could be caused by a kamalio miss-configuration could you please send me an example of configuration that should work with websockets, rtpproxy-ng->mediaproxy-ng in order to remove one possible cause?

Thank you.

Best regards,

Mihai M

On Wed, Jan 29, 2014 at 1:31 PM, Klaus Darilion <klaus.mailinglists@pernau.at> wrote:

Hi!

The problem is different SDP formats between normal SIP clients/gateways, and WebRTC clients.

You have to instruct mediaproxy-ng to rewrite the SDP and do the conversion (encryption, ...).

So either the rtpproxy_ng calls lack the commands for the "gatewaying", or the webrtc clients uses eg. an encryption which is not supported by mediaproxy-ng.

Please also post the kamailio.cfg snippets when calling rtpproxy_ng and give details about your environment (browser, SIP client ...)

regards
Klaus

On 27.01.2014 22:38, Mihai Marin wrote:

Hello Sirs,
I have a problem configuring kamailio with mediaproxy-ng and I'm asking
for help.

I managed to build everything, kamailio find support for mediaproxy-ng
using rtpproxy-ng. When I'm trying to make a call from Web using my
phone's internet provider to my computer's web I get 488 Not Acceptable
Here. Swithing the caller I get no video.

I have used the kamailio-advanced.cfg generated and added websocket
support. The call in my network is working perfect.

Can you help me with this?

mediaproxy-ng log:
mediaproxy-ng[14896]: Returning to SIP proxy:
d7:createdi1390864117e7:streamslld3:tag10:trhh9viigs6:status34:known but
unconfirmed peer
address5:statsd3:rtpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer addressd6:family4:IPv47:address13:213.233.85.554:porti48279ee23:advertised
peer
addressd6:family4:IPv47:address13:213.233.85.554:porti48279ee10:local
porti30008ee4:rtcpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer
addressd6:family4:IPv47:address13:213.233.85.554:porti48280ee23:advertised
peer
addressd6:family4:IPv47:address13:213.233.85.554:porti48280ee10:local
porti30009eeeed3:tag0:6:status20:unknown peer
address5:statsd3:rtpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer addressd6:family4:IPv67:address2:::4:porti0ee23:advertised
peer addressd6:family4:IPv67:address2:::4:porti0ee10:local
porti30010ee4:rtcpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer
addressd6:family4:IPv67:address2:::4:porti0ee23:advertised peer
addressd6:family4:IPv67:address2:::4:porti0ee10:local
porti30011eeeeee6:totalsd5:inputd3:rtpd7:packetsi0e5:bytesi0e6:errorsi0ee4:rtcpd7:packetsi0e5:bytesi0e6:errorsi0eee6:outputd3:rtpd7:packetsi0e5:bytesi0e6:errorsi0ee4:rtcpd7:packetsi0e5:bytesi0e6:errorsi0eeee6:result2:oke

kamailio:

11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=860 a=24
n=rtpproxy_manage
11(14926) DEBUG: rtpproxy-ng [rtpproxy.c:1333]: rtpp_function_call():
proxy reply:
d7:createdi1390864117e7:streamslld3:tag10:trhh9viigs6:status34:known but
unconfirmed peer
address5:statsd3:rtpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer addressd6:family4:IPv47:address13:213.233.85.554:porti48279ee23:advertised
peer
addressd6:family4:IPv47:address13:213.233.85.554:porti48279ee10:local
porti30008ee4:rtcpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer
addressd6:family4:IPv47:address13:213.233.85.554:porti48280ee23:advertised
peer
addressd6:family4:IPv47:address13:213.233.85.554:porti48280ee10:local
porti30009eeeed3:tag0:6:status20:unknown peer
address5:statsd3:rtpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer addressd6:family4:IPv67:address2:::4:porti0ee23:advertised
peer addressd6:family4:IPv67:address2:::4:porti0ee10:local
porti30010ee4:rtcpd8:countersd7:packetsi0e5:bytesi0e6:errorsi0ee12:peer
addressd6:family4:IPv67:address2:::4:porti0ee23:advertised peer
addressd6:family4:IPv67:address2:::4:porti0ee10:local
porti30011eeeeee6:totalsd5:inputd3:rtpd7:packetsi0e5:bytesi0e6:errorsi0ee4:rtcpd7:packetsi0e5:bytesi0e6:errorsi0eee6:outputd3:rtpd7:packetsi0e5:bytesi0e6:errorsi0ee4:rtcpd7:packetsi0e5:bytesi0e6:errorsi0eeee6:result2:oke
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=867 a=16 n=if
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=862 a=24 n=is_request
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=866 a=16 n=if
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=863 a=24 n=has_totag
11(14926) DEBUG: siputils [checks.c:103]: has_totag(): no totag
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=864 a=25 n=add_rr_param
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=873 a=16 n=if
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=867 a=24 n=is_reply
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=873 a=2 n=return
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=1009 a=16 n=if
11(14926) ERROR: *** cfgtrace:
c=[/usr/local/etc/kamailio/kamailio-advanced.cfg] l=989 a=24 n=t_is_canceled
11(14926) DEBUG: tm [t_lookup.c:1071]: t_check_msg(): DEBUG:
t_check_msg: msg id=2 global id=2 T start=0x7f62174df4e0
11(14926) DEBUG: tm [t_lookup.c:1143]: t_check_msg(): DEBUG:
t_check_msg: T already found!
11(14926) DEBUG: tm [t_reply.c:1827]: relay_reply(): DEBUG: relay_reply:
branch=0, save=0, relay=0 icode=0
11(14926) DEBUG: <core> [msg_translator.c:2007]:
generate_res_buf_from_sip_res(): old size: 397, new size: 305
11(14926) DEBUG: <core> [msg_translator.c:2025]:
generate_res_buf_from_sip_res(): copied size: orig:125, new: 33, rest:
272 msg=
SIP/2.0 488 Not Acceptable Here
Via: SIP/2.0/WS
ebhg3v0qb6fm.invalid;rport=1034;received=213.233.85.55;branch=z9hG4bK8048296
To: <sip:bob@93.187.138.214
<mailto:sip%3Abob@93.187.138.214>>;tag=r6dc2287g9

From: "Alice Test" <sip:alice@93.187.138.214
<mailto:sip%3Aalice@93.187.138.214>>;tag=trhh9viigs

Call-ID: fvgga4ikm8vrvuji0g0n
CSeq: 6228 INVITE
Content-Length: 0

11(14926) DEBUG: websocket [ws_frame.c:713]: ws_frame_transmit(): Tx
message:
SIP/2.0 488 Not Acceptable Here
Via: SIP/2.0/WS
ebhg3v0qb6fm.invalid;rport=1034;received=213.233.85.55;branch=z9hG4bK8048296
To: <sip:bob@93.187.138.214
<mailto:sip%3Abob@93.187.138.214>>;tag=r6dc2287g9

From: "Alice Test" <sip:alice@93.187.138.214
<mailto:sip%3Aalice@93.187.138.214>>;tag=trhh9viigs

Call-ID: fvgga4ikm8vrvuji0g0n
CSeq: 6228 INVITE
Content-Length: 0

Thank you.

Best regards,
Mihai M

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