[Serusers] Ringback tone

GR S gr_sh2003 at yahoo.com
Wed May 5 10:58:30 CEST 2004


Hello,

--- Klaus Darilion <klaus.mailinglists at pernau.at> wrote:
> The ringback tone is generated locally by the callers user agent - 
> typically as soon as the 180 ringing is received.
> 
> If a 183 Early media is received, the callers UA will use the incoming 
> RTP stream as ringback tone.
> 
> klaus

Thanks for the reply. The user agent is getting the 180 ringing, but it does not generate
the ringing tone. I have tested it with SJphone and another softphone which is built
using Windows and RTC, but both behave the same way. I have captured the SIP trafic using
ethreal and did not find anything weird. However, i am curious about one of the lines in
that trace: 

Warning: 392 192.168.68.20:5060 "Noisy feedback tells:  pid=23603
req_src_ip=192.168.68.16 req_src_port=5060 in_uri=sip:9000 at 192.168.68.20
out_uri=sip:shiva-smarttest-com at 192.168.68.20 via_cnt==1"

I am attaching the relevent parts of the ethreal trace with this.

Thoughts?

Regards, Girish


INVITE sip:9000 at 192.168.68.20 SIP/2.0
Content-Length: 116
Contact: <sip:192.168.68.16>
Call-ID: 4E7D7393-F25F-453B-A136-B26F0FCEB7AC at 192.168.68.16
Content-Type: application/sdp
Max-Forwards: 70
From: "                     "<sip:krishna-smarttest-com at 192.168.68.20>;tag=7678651
CSeq: 1 INVITE
To: <sip:9000 at 192.168.68.20>
Via: SIP/2.0/UDP 192.168.68.16:5060
User-Agent: SJLabs-SJPhone/1.0
                                                                                         
                                   
SIP/2.0 100 trying -- your call is important to us
Call-ID: 4E7D7393-F25F-453B-A136-B26F0FCEB7AC at 192.168.68.16
From: "                     "<sip:krishna-smarttest-com at 192.168.68.20>;tag=7678651
CSeq: 1 INVITE
To: <sip:9000 at 192.168.68.20>
Via: SIP/2.0/UDP 192.168.68.16:5060
Server: Sip EXpress router (0.8.13-dev-27-unixsock (i386/linux))
Content-Length: 0
Warning: 392 192.168.68.20:5060 "Noisy feedback tells:  pid=23603
req_src_ip=192.168.68.16 req_src_port=5060 in_uri=sip:9000 at 192.168.68.20
out_uri=sip:shiva-smarttest-com at 192.168.68.20 via_cnt==1"
                                                                                         
                                   
INVITE sip:192.168.68.5 SIP/2.0
Record-Route: <sip:192.168.68.20;ftag=7678651;lr>
Record-Route: <sip:192.168.68.20;ftag=7678651;lr>
Content-Length: 116
Contact: <sip:192.168.68.16>
Call-ID: 4E7D7393-F25F-453B-A136-B26F0FCEB7AC at 192.168.68.16
Content-Type: application/sdp
Max-Forwards: 68
From: "                     "<sip:krishna-smarttest-com at 192.168.68.20>;tag=7678651
CSeq: 1 INVITE
To: <sip:9000 at 192.168.68.20>
Via: SIP/2.0/UDP 192.168.68.20;branch=z9hG4bK30f5.b7e81e43.0
Via: SIP/2.0/UDP 192.168.68.20;branch=z9hG4bK30f5.a7e81e43.0
Via: SIP/2.0/UDP 192.168.68.16:5060
User-Agent: SJLabs-SJPhone/1.0
                                                                                         
                                   
SIP/2.0 100 Trying
Content-Length: 0
Contact: <sip:192.168.68.5:5060>
Call-ID: 4E7D7393-F25F-453B-A136-B26F0FCEB7AC at 192.168.68.16
CSeq: 1 INVITE
From: <sip:krishna-smarttest-com at 192.168.68.20>;tag=7678651
Record-Route: <sip:192.168.68.20;ftag=7678651;lr>,<sip:192.168.68.20;ftag=7678651;lr>
To: "Suresh"<sip:9000 at 192.168.68.20>;tag=8359859
Server: SJLabs-SJPhone/1.0
Via: SIP/2.0/UDP 192.168.68.20:5060;branch=z9hG4bK30f5.b7e81e43.0,SIP/2.0/UDP
192.168.68.20:5060;branch=z9hG4bK30f5.a7e81e43.0,SIP/2.0/UDP 192.168.68.16:5060
                                                                                         
                                   
SIP/2.0 180 Ringing
Content-Length: 0
Contact: <sip:192.168.68.5:5060>
Call-ID: 4E7D7393-F25F-453B-A136-B26F0FCEB7AC at 192.168.68.16
CSeq: 1 INVITE
From: <sip:krishna-smarttest-com at 192.168.68.20>;tag=7678651
Record-Route: <sip:192.168.68.20;ftag=7678651;lr>,<sip:192.168.68.20;ftag=7678651;lr>
To: "Suresh"<sip:9000 at 192.168.68.20>;tag=8359859
Server: SJLabs-SJPhone/1.0
Via: SIP/2.0/UDP 192.168.68.20:5060;branch=z9hG4bK30f5.b7e81e43.0,SIP/2.0/UDP
192.168.68.20:5060;branch=z9hG4bK30f5.a7e81e43.0,SIP/2.0/UDP 192.168.68.16:5060

SIP/2.0 180 Ringing
Content-Length: 0
Contact: <sip:192.168.68.5:5060>
Call-ID: 4E7D7393-F25F-453B-A136-B26F0FCEB7AC at 192.168.68.16
CSeq: 1 INVITE
From: <sip:krishna-smarttest-com at 192.168.68.20>;tag=7678651
Record-Route: <sip:192.168.68.20;ftag=7678651;lr>,<sip:192.168.68.20;ftag=7678651;lr>
To: "Suresh"<sip:9000 at 192.168.68.20>;tag=8359859
Server: SJLabs-SJPhone/1.0
Via: SIP/2.0/UDP 192.168.68.16:5060
                                                                                         
                                   
SIP/2.0 200 OK




	
		
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