[Freeswitch-users] Freeswitch as b2bua

[Helmut Kuper]

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Hi,

no, dunno that. i think this is because my provider knows somehow that
the call was originated from a foreign voip domain.

I'm talking to my colleagues (my provider, hehe) about that message.


Oh got now the answere. My provider rejects the call in a sip firewall
on our SBC. They cannot use DNS (cause of techincal reasons), so they
can't resolve the dns-name in the c field of INVITE's SDP message:


   ------------------------------------------------------------------------
   INVITE sip:044180002850 at sip01.voice.ewetel.de SIP/2.0
   Via: SIP/2.0/UDP sip0.en.ewetel.de;rport;branch=z9hG4bKtQUm3j5m8javF
   Max-Forwards: 69
   From: "032223930016" <sip:101 at sip0.en.ewetel.de>;tag=rF71mQ9etU9HQ
   To: <sip:044180002850 at sip01.voice.ewetel.de>
   Call-ID: 5a571254-41ca-122a-ff9c-005056947ed9
   CSeq: 80214586 INVITE
   Contact: <sip:mod_sofia at sip0.en.ewetel.de:5060>
   User-Agent: FreeSWITCH(mod_sofia)
   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE,
NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH
   Supported: 100rel, precondition
   Content-Type: application/sdp
   Content-Disposition: session
   Content-Length: 258
   Remote-Party-ID: "032223930016"
<sip:101 at sip0.en.ewetel.de>;party=calling;screen=yes;privacy=off

   v=0
   o=FreeSWITCH 4760289687929138191 1084810514790632154 IN IP4 212.6.123.118
   s=FreeSWITCH
   c=IN IP4 sip0.en.ewetel.de  <----- This seems to be the reason why
   t=0 0
   a=sendrecv
   m=audio 16388 RTP/AVP 0 0 101
   a=rtpmap:0 PCMU/8000
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-16
   a=ptime:20
   ------------------------------------------------------------------------

so there r two way to solve this: either my colleagues change their
production environment to use DNS or freeswitch replaces
sip0.en.ewetel.de with the correspondig IP address. Is there a way in
freeswitch to do this ?

regards
Helmut

Brian West schrieb:
> This line:
> 
>    Warning: 301 213.168.198.84 "invalid transport IP address"
> 
> You know any reason why your provider might reply like that?
> 
> /b
> 
> On Feb 28, 2007, at 2:17 AM, Helmut Kuper wrote:
> 
>>
>> Hi,
>>
> 
> 
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