[Serusers] One way voice Problem
Balaji Bapulal Thoguluva
bbthog2 at uky.edu
Wed Feb 11 19:53:25 CET 2004
Hi,
I have SER and 2 cisco SIP phones. When I call between the SIP phones, I can hear voice from only direction (callee to caller works, caller to callee doen't work). Both phones display connected in their LCD screen and I also checked the codecs used by the phones are same. I would appreciate if anyone can point me what is wrong and what are the possible solution to this problem.
I have attached the ngrep output below. In the second message of the output, I can see a "Warning: 392" header field with a value "Noisy Feedback tells:...".
ngrep output:
------------
interface: eth0 (192.168.6.0/255.255.255.0)
#############
#
U 192.168.6.103:49834 -> 192.168.6.100:5060
INVITE sip:3311 at 192.168.6.100 SIP/2.0..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>..Call-ID: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Date: Wed, 11 Feb 2 004 18:33:50 GMT..CSeq: 101 INVITE..Expires: 180..User-Agent: Cisco-SIP-IP-Phone/2..Accept: application/sdp..Contact: sip:3322 at 192.168.6.103:5060..Content-Type: application/sdp..Content-Length: 226....v=0..o=CiscoSystemsSIP-IPPhone-UserAgent 26498 14989 IN IP4 192.168
.6.103..s=SIP Call..c=IN IP4 192.168.6.103..t=0 0..m=audio 27234 RTP/AVP 0 8 18 101..a=rtpmap:0 pcmu/8000..a=rtpmap:101 telephone-even
t/8000..a=fmtp:101 0-11..
#
U 192.168.6.100:5060 -> 192.168.6.103:5060
SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <sip:3322 at 192.168.6.10
0>;tag=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>..Call-ID: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..CSeq:
101 INVITE..Server: Sip EXpress router (0.8.11 (i386/linux))..Content-Length: 0..Warning: 392 192.168.6.100:5060 "Noisy feedback tells
: pid=9732 req_src_ip=192.168.6.103 req_src_port=49834 in_uri=sip:3311 at 192.168.6.100 out_uri=sip:3311 at 192.168.6.104:5060 via_cnt==1".
...
#
U 192.168.6.100:5060 -> 192.168.6.104:5060
INVITE sip:3311 at 192.168.6.104:5060 SIP/2.0..Max-Forwards: 10..Record-Route: <sip:3311 at 192.168.6.100;ftag=925f0b001c0632395f2e8-34ee90e
;lr=on>..Via: SIP/2.0/UDP 192.168.6.100;branch=z9hG4bK8153.9c3bbf61.0..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <si
p:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>..Call-ID: 000b5f92-63c00003-63cc121e-248e7823 at 19
2.168.6.103..Date: Wed, 11 Feb 2004 18:33:50 GMT..CSeq: 101 INVITE..Expires: 180..User-Agent: Cisco-SIP-IP-Phone/2..Accept: applicatio
n/sdp..Contact: sip:3322 at 192.168.6.103:5060..Content-Type: application/sdp..Content-Length: 226....v=0..o=CiscoSystemsSIP-IPPhone-User
Agent 26498 14989 IN IP4 192.168.6.103..s=SIP Call..c=IN IP4 192.168.6.103..t=0 0..m=audio 27234 RTP/AVP 0 8 18 101..a=rtpmap:0 pcmu/8
000..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-11..
#
U 192.168.6.104:50020 -> 192.168.6.100:5060
SIP/2.0 100 Trying..Via: SIP/2.0/UDP 192.168.6.100;branch=z9hG4bK8153.9c3bbf61.0,SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji
" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-ID
: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Server: Cisco-SIP-IP-Phone/2..Date: Wed, 11 Feb 2004 18:33:50 GMT..CSeq: 101 INVI
T#
U 192.168.6.104:50020 -> 192.168.6.100:5060
SIP/2.0 180 Ringing..Via: SIP/2.0/UDP 192.168.6.100;branch=z9hG4bK8153.9c3bbf61.0,SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaj
i" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-I
D: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Server: Cisco-SIP-IP-Phone/2..Date: Wed, 11 Feb 2004 18:33:50 GMT..CSeq: 101 INV
ITE..Content-Length: 0....
#
U 192.168.6.100:5060 -> 192.168.6.103:5060
SIP/2.0 180 Ringing..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34
ee90e..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-ID: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Se
rver: Cisco-SIP-IP-Phone/2..Date: Wed, 11 Feb 2004 18:33:50 GMT..CSeq: 101 INVITE..Content-Length: 0....
#
U 192.168.6.104:50020 -> 192.168.6.100:5060
SIP/2.0 200 OK..Via: SIP/2.0/UDP 192.168.6.100;branch=z9hG4bK8153.9c3bbf61.0,SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <s
ip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-ID: 00
0b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Server: Cisco-SIP-IP-Phone/2..Contact: sip:3311 at 192.168.6.104:5060..Record-Route: <si
p:3311 at 192.168.6.100;ftag=925f0b001c0632395f2e8-34ee90e;lr=on>..Date: Wed, 11 Feb 2004 18:33:53 GMT..CSeq: 101 INVITE..Content-Type: a
pplication/sdp..Content-Length: 221....v=0..o=CiscoSystemsSIP-IPPhone-UserAgent 14538 26512 IN IP4 192.168.6.104..s=SIP Call..c=IN IP4
192.168.6.104..t=0 0..m=audio 24138 RTP/AVP 0 101..a=rtpmap:0 pcmu/8000..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-11..
#
U 192.168.6.100:5060 -> 192.168.6.103:5060
SIP/2.0 200 OK..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e
..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-ID: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Server:
Cisco-SIP-IP-Phone/2..Contact: sip:3311 at 192.168.6.104:5060..Record-Route: <sip:3311 at 192.168.6.100;ftag=925f0b001c0632395f2e8-34ee90e;
lr=on>..Date: Wed, 11 Feb 2004 18:33:53 GMT..CSeq: 101 INVITE..Content-Type: application/sdp..Content-Length: 221....v=0..o=CiscoSyste
msSIP-IPPhone-UserAgent 14538 26512 IN IP4 192.168.6.104..s=SIP Call..c=IN IP4 192.168.6.104..t=0 0..m=audio 24138 RTP/AVP 0 101..a=rt
pmap:0 pcmu/8000..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-11..E..Content-Length: 0....
U 192.168.6.103:49834 -> 192.168.6.100:5060
ACK sip:3311 at 192.168.6.100:5060 SIP/2.0..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f
0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-ID: 000b5f92-63c00003-63cc121e-248e78
23 at 192.168.6.103..Date: Wed, 11 Feb 2004 18:33:53 GMT..Route: <sip:3311 at 192.168.6.104:5060>..CSeq: 101 ACK..Content-Length: 0....
#
U 192.168.6.100:5060 -> 192.168.6.104:5060
ACK sip:3311 at 192.168.6.104:5060 SIP/2.0..Max-Forwards: 10..Record-Route: <sip:3311 at 192.168.6.100;ftag=925f0b001c0632395f2e8-34ee90e;lr
=on>..Via: SIP/2.0/UDP 192.168.6.100;branch=0..Via: SIP/2.0/UDP 192.168.6.103:5060..From: "User ID Balaji" <sip:3322 at 192.168.6.100>;ta
g=925f0b001c0632395f2e8-34ee90e..To: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..Call-ID: 000b5f92-63c00003-63cc121e-
248e7823 at 192.168.6.103..Date: Wed, 11 Feb 2004 18:33:53 GMT..CSeq: 101 ACK..Content-Length: 0....
###
U 128.163.55.134:496 -> 224.0.1.40:496
..........7=........
############
U 192.168.6.104:50020 -> 192.168.6.100:5060
BYE sip:3311 at 192.168.6.100:5060 SIP/2.0..Via: SIP/2.0/UDP 192.168.6.104:5060..From: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de
-474d2b85..To: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..Call-ID: 000b5f92-63c00003-63cc121e-248e78
23 at 192.168.6.103..Date: Wed, 11 Feb 2004 18:34:02 GMT..User-Agent: Cisco-SIP-IP-Phone/2..CSeq: 101 BYE..Route: <sip:3322 at 192.168.6.103
:5060>..Content-Length: 0....
#
U 192.168.6.100:5060 -> 192.168.6.103:5060
BYE sip:3322 at 192.168.6.103:5060 SIP/2.0..Max-Forwards: 10..Record-Route: <sip:3311 at 192.168.6.100;ftag=c25f0b001363563cc13de-474d2b85;l
r=on>..Via: SIP/2.0/UDP 192.168.6.100;branch=z9hG4bK8153.ac3bbf61.0..Via: SIP/2.0/UDP 192.168.6.104:5060..From: <sip:3311 at 192.168.6.10
0>;tag=c25f0b001363563cc13de-474d2b85..To: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..Call-ID: 000b5
f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Date: Wed, 11 Feb 2004 18:34:02 GMT..User-Agent: Cisco-SIP-IP-Phone/2..CSeq: 101 BYE..Co
ntent-Length: 0....
#
U 192.168.6.103:49834 -> 192.168.6.100:5060
SIP/2.0 200 OK..Via: SIP/2.0/UDP 192.168.6.100;branch=z9hG4bK8153.ac3bbf61.0,SIP/2.0/UDP 192.168.6.104:5060..From: <sip:3311 at 192.168.6
.100>;tag=c25f0b001363563cc13de-474d2b85..To: "User ID Balaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..Call-ID: 00
0b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Server: Cisco-SIP-IP-Phone/2..CSeq: 101 BYE..Content-Length: 0....
#
U 192.168.6.100:5060 -> 192.168.6.104:5060
SIP/2.0 200 OK..Via: SIP/2.0/UDP 192.168.6.104:5060..From: <sip:3311 at 192.168.6.100>;tag=c25f0b001363563cc13de-474d2b85..To: "User ID B
alaji" <sip:3322 at 192.168.6.100>;tag=925f0b001c0632395f2e8-34ee90e..Call-ID: 000b5f92-63c00003-63cc121e-248e7823 at 192.168.6.103..Server:
Cisco-SIP-IP-Phone/2..CSeq: 101 BYE..Content-Length: 0....
######
exit
152 received, 0 dropped
Thanks in Advance,
Balaji Thoguluva
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