Thanks Darilion,
But i can`t access the NGN server. And just now i found at home, there
is no problem with both caller and callee, but in my company`s network
environment, there indeed exists the first problem! Maybe the problem relays
on the network environment?
I check the two INVITE packages, they are the same except for the two
head fields: via and Record-Route
Best wishes
xutm
2009/7/13 Klaus Darilion <klaus.mailinglists at pernau.at>
> Regarding first problem: fix the NGN :-(
>
> Regarding second problem: maybe the NGN sends to the wrong destination port
>
> regards
> klaus
>
> xutm schrieb:
>
>> Hi all,
>> Now I am developing a softphone using pjsip, and I have such two
>> problems:
>> 1. first problem:
>> As a callee, after receiving an INVITE, I send a 180 responce , but the
>> NGN can`t realize the 180 response, and NGN again sends another INVITE with
>> different Via and Record-Route. Such as:
>> the previous:
>> INVITE sip:059188244006 at 191.168.17.14 <sip%3A059188244006 at 191.168.17.14><mailto:
>> sip%3A059188244006 at 191.168.17.14 <sip%253A059188244006 at 191.168.17.14>>
>> SIP/2.0
>> Via: SIP/2.0/UDP aaa.aaa.aaa.aaa:5060;branch=z9hG4bK6a373d102bba229d
>> Via: SIP/2.0/UDP
>> bbb.bbb.bbb.bbb:5060;received=bbb.bbb.bbb.bbb;branch=z9hG4bK5c053455.0
>> ...
>> Call-ID: 00004913000073df-0001-0020 at bbb.bbb.bbb.bbb
>> ...
>> Record-Route: <sip:aaa.aaa.aaa.aaa;lr>
>> Record-Route: <sip:bbb.bbb.bbb.bbb;lr>
>> the latter:
>> Via: SIP/2.0/UDP aaa.aaa.aaa.aaa:5060;branch=z9hG4bK6a373d102bba229d
>> Via: SIP/2.0/UDP
>> ccc.ccc.ccc.ccc:1150;received=ccc.ccc.ccc.ccc;branch=z9hG4bK5c053455.0
>> ...
>> Call-ID: 00004913000073df-0001-0020 at bbb.bbb.bbb.bbb
>> ...
>> Record-Route: <sip:aaa.aaa.aaa.aaa;lr>
>> Record-Route: <sip:ccc.ccc.ccc.ccc:1150;lr>
>> I have no idea why this problem happen. The same Call-ID in two INVITE
>> packages shows that the two packages both sended by only one Server. But why
>> the Server sended two INVITE? Before modifing the codes, PJSIP can`t deal
>> with this situation . A fomous softphone called Eyebeam ether can`t deal
>> with it. Can somebody tell me why?
>> To solve this problem, I just disable the flag: route_set_froze, always
>> set : route_set_frozen = PJ_FALSE :
>> in method dlg_update_routeset in file sip_dialog.c:
>> if (pjsip_method_creates_dialog(&rdata->msg_info.cseq->method) &&
>> PJSIP_IS_STATUS_IN_CLASS(msg->line.status.code, 200))
>> {
>> // dlg->route_set_frozen = PJ_TRUE;
>> // PJ_LOG(5,(dlg->obj_name, "Route-set frozen"));
>> dlg->route_set_frozen = PJ_FALSE; // here i set false
>> }
>> Through this modify , it seems well the past few days and i can receive
>> incoming calls successfully. But just yesterday, I found it can`t receive
>> incoming call again! That is the second problem following:
>> 2. second problem:
>> After I send 180 response, NGN just don`t realize it and sends
>> another INVITE again. But the most oddball thing is : the Ethereal indeed
>> receive the incoming INVITE package while PJSIP doesn`t receive the INVITE
>> packages. From the log , i can`t found the incoming INVITE. Then i check the
>> methods: pjsip_endpt_handle_events2(sip_endpoint.c) and pj_ioqueue_poll and
>> poll_iocp in ioqueue_winnt.c , i found it indeed loops to listen the special
>> socket to receive incoming package. But why it can`t receive the INVITE
>> packages while the Capture package tools such as Ethereal can receive them?
>> Can someone help me please?
>>
>> Best regards,
>> xutm
>>
>>
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
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