[Serusers] connection being dropped
Srbislav Cvetkovic
srbislav at city-net.com
Mon Feb 9 23:43:13 CET 2004
OK,
i used ngrep to listen to dst port 5060 and this is what i got. Can
anyone look at it and try to help me out?
thanks,
interface: eth0 (198.144.32.0/255.255.255.0)
filter: ip and ( port 5060 )
match: dst
#
#
U my_phone_ip:5060 -> ser_server:5060
INVITE sip:94124818063 at ser_server SIP/2.0..Via: SIP/2.0/UDP
198.144.32.7
1;branch=z9hG4bKf88766e9c5b3f444..From: "Srbo"
<sip:1000 at ser_server>;tag
=c402c7247006301f..To: <sip:94124818063 at ser_server>..Contact:
<sip:1000@
my_phone_ip>..Call-ID: e23ac0a48fed667d at my_phone_ip..CSeq: 53335
INVITE
..User-Agent: Grandstream 1.0.4.39..Max-Forwards: 70..Allow:
INVITE,ACK,CAN
CEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Type:
application/sdp.
.Content-Length: 272....v=0..o=1000 8000 8000 IN IP4
my_phone_ip..s=SIP C
all..c=IN IP4 my_phone_ip..t=0 0..m=audio 5004 RTP/AVP 0 8 4 18 2
15..a=r
tpmap:0 PCMU/8000..a=rtpmap:8 PCMA/8000..a=rtpmap:4
G723/8000..a=rtpmap:18
G729/8000..a=rtpmap:2 G726-32/8000..a=rtpmap:15
G728/8000..a=ptime:10..
##
U ser_server:5060 -> gateway:5060
INVITE sip:4124818063 at ser_server SIP/2.0..Record-Route:
<sip:94124818063
@ser_server;ftag=c402c7247006301f;lr=on>..Via: SIP/2.0/UDP ser_server
;branch=z9hG4bK0321.fd8a5247.0..Via: SIP/2.0/UDP
my_phone_ip;branch=z9hG4
bKf88766e9c5b3f444..From: "Srbo"
<sip:1000 at ser_server>;tag=c402c72470063
01f..To: <sip:94124818063 at ser_server>..Contact: <sip:1000 at my_phone_ip>
..Call-ID: e23ac0a48fed667d at my_phone_ip..CSeq: 53335
INVITE..User-Agent:
Grandstream 1.0.4.39..Max-Forwards: 69..Allow:
INVITE,ACK,CANCEL,BYE,NOTIFY
,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Type:
application/sdp..Content-Lengt
h: 272....v=0..o=1000 8000 8000 IN IP4 my_phone_ip..s=SIP Call..c=IN
IP4
my_phone_ip..t=0 0..m=audio 5004 RTP/AVP 0 8 4 18 2 15..a=rtpmap:0
PCMU/8
000..a=rtpmap:8 PCMA/8000..a=rtpmap:4 G723/8000..a=rtpmap:18
G729/8000..a=r
tpmap:2 G726-32/8000..a=rtpmap:15 G728/8000..a=ptime:10..
####
U my_phone_ip:5060 -> ser_server:5060
ACK sip:4124818063 at ser_server:5060;maddr=gateway SIP/2.0..Via: SIP
/2.0/UDP my_phone_ip;branch=z9hG4bK5dd5e7460a81c8ef..Route:
<sip:94124818
063 at ser_server;ftag=c402c7247006301f;lr=on>..From: "Srbo"
<sip:1000 at 198.
144.32.67>;tag=c402c7247006301f..To:
<sip:94124818063 at ser_server>;tag=00
11-0024-EA84E121..Contact: <sip:1000 at my_phone_ip>..Call-ID:
e23ac0a48fed6
67d at my_phone_ip..CSeq: 53335 ACK..User-Agent: Grandstream
1.0.4.39..Max-F
orwards: 70..Allow:
INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRI
BE..Content-Length: 0....
#
U ser_server:5060 -> voicemail:5090
ACK sip:4124818063 at voicemail:5090;maddr=gateway SIP/2.0..Record-R
oute: <sip:4124818063 at ser_server;ftag=c402c7247006301f;lr=on>..Via:
SIP/
2.0/UDP ser_server;branch=0..Via: SIP/2.0/UDP my_phone_ip;branch=z9hG4
bK5dd5e7460a81c8ef..From: "Srbo"
<sip:1000 at ser_server>;tag=c402c72470063
01f..To:
<sip:94124818063 at ser_server>;tag=0011-0024-EA84E121..Contact: <
sip:1000 at my_phone_ip>..Call-ID: e23ac0a48fed667d at my_phone_ip..CSeq:
533
35 ACK..User-Agent: Grandstream 1.0.4.39..Max-Forwards: 69..Allow:
INVITE,A
CK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Length:
0....
#############
U my_phone_ip:5060 -> ser_server:5060
SIP/2.0 200 OK..Via: SIP/2.0/UDP
ser_server;branch=z9hG4bK221a.a8d20722.
0..Via: SIP/2.0/UDP gateway:5060;branch=z9hG4bK-vega1-0007-0000-0028-
4D0F43B1..Record-Route:
<sip:1000 at ser_server;ftag=0011-0024-EA84E121;lr=
on>..From: <sip:94124818063 at ser_server>;tag=0011-0024-EA84E121..To:
"Srb
o" <sip:1000 at ser_server>;tag=c402c7247006301f..Call-ID:
e23ac0a48fed667d
@my_phone_ip..CSeq: 20361664 BYE..User-Agent: Grandstream
1.0.4.39..Conta
ct: <sip:1000 at my_phone_ip>..Allow:
INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPT
IONS,INFO,SUBSCRIBE..Content-Length: 0....
#
U ser_server:5060 -> gateway:5060
SIP/2.0 200 OK..Via: SIP/2.0/UDP gateway:5060;branch=z9hG4bK-vega1-00
07-0000-0028-4D0F43B1..Record-Route:
<sip:1000 at ser_server;ftag=0011-0024
-EA84E121;lr=on>..From:
<sip:94124818063 at ser_server>;tag=0011-0024-EA84E
121..To: "Srbo" <sip:1000 at ser_server>;tag=c402c7247006301f..Call-ID:
e23
ac0a48fed667d at my_phone_ip..CSeq: 20361664 BYE..User-Agent:
Grandstream 1.
0.4.39..Contact: <sip:1000 at my_phone_ip>..Allow:
INVITE,ACK,CANCEL,BYE,NOT
IFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Length: 0....
On Monday, February 9, 2004, at 02:31 PM, Jan Janak wrote:
> On 09-02 14:24, Srbislav Cvetkovic wrote:
>> Hello,
>>
>> Have any of you had an experience with Grandstream BudgeTone phones?
>> My
>> outgoing calls are being dropped after 16 seconds. My system looks
>> like
>> this:
>>
>> Grandstream phone --->
>> SER sip proxy ----> VEGA 50 SIP
>> gateway.
>> x-lite softphone ---->
>>
>> When i make an outgoing call from my softphone it works fine. But not
>> with ip phone. After 16 sec. my VEGA gateway disconnects the call.
>> After talking to VEGA customer support they told me that my ip phone
>> is
>> not replying back to VEGA's ACK requests, and eventualy after 26 sec.
>> VEGA dropps the call. Does anyone out there have a similar setup or
>> ever experienced such a problem? I am running the latest firmware on
>> my
>> ip phone.
>
> There is no reply to ACK and the gateway does not send any ACK in
> this
> case. The ACK is generated by Grandstram and x-lite. Use ngrep (or
> similar tool) to check whether the grandstream phone gets 200 OK and
> generates ACK.
>
> Jan.
>
Srbo Cvetkovic | CityNet, Inc.
srbo at city-net.com | Pittsburgh, PA
voice: 412.481.5406 | fax: 412.431.1315
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