[Serusers] SER Proxy auth

['Jan Janak']

I am not sure I understand your description and the problem. If SER
gets the INVITE then registration with the PSTN gateway works (I think
that was the original problem).

  Jan.

On 22-11 09:58, E. Versaevel wrote:
> 
> I have to authenticate on each outgoing call, so I've setup SER+Asterisk,
> however I still have some problems.
> I already asked this on the asterisk mailing list, but I'm not getting any
> replies there.
> 
> Ser forwards outgoing calls to asterisk, which authenticates itself to the
> carrier proxy, so far so good. However, asterisk has to forward incoming
> calls from the carrier to SER for routing to the UA's, however, asterisk
> alters the from header in the sip messages, this way when someone adds the
> incoming call to the address book, the sip uri is wrong and the call won't
> get anywere.
> 
> Take a look at this sip msg:
> 
> 	INVITE sip:erik at localphone:5061 SIP/2.0
> 	Max-Forwards: 10
> 	Record-Route: <sip:3400009521 at ser.box;ftag=as3f718642;lr=on>
> 	Via: SIP/2.0/UDP ser.box;branch=z9hG4bK93dc.71ad80b3.0
> 	Via: SIP/2.0/UDP ser.box:5065;branch=z9hG4bK513b584d
> 	From: "3400009525" <sip:asterisk at ser.box:5065>;tag=as3f718642
> 	To: <sip:3400009521 at sip.ser.box>
> 	Contact: <sip:asterisk at ser.box:5065>
> 	Call-ID: 533cb84a48058ebb71fbd7bf7557c0f0 at ser.box
> 	CSeq: 102 INVITE
> 	User-Agent: Asterisk PBX
> 	Date: Thu, 18 Nov 2004 12:46:51 GMT
> 	Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER
> 	Content-Type: application/sdp
> 	Content-Length: 220
> 	P-hint: USRLOC
> 
> As you can see the from user is not correct, this should be
> 3400009525 at iptel.org. If a user adds this entry to a phonebook, the contact
> info will be wrong.
> For outgoing calls this won't be a problem as I only send calls to the pstn
> thru asterisk, incoming is a bit troublesome.
> 
> 
> 
> -----Oorspronkelijk bericht-----
> Van: Jan Janak [mailto:jan at iptel.org] 
> Verzonden: zondag 14 november 2004 13:14
> Aan: E. Versaevel
> CC: serusers at lists.iptel.org
> Onderwerp: Re: [Serusers] SER Proxy auth
> 
> If you are using asterisk just for the purpose of registering with the
> gateway then you could also consider using sipsak for that (that should
> be simpler).
> 
> sipsak can send the registration and you can configured it to put the IP
> address of your proxy server into the Contact.
> 
>   Jan.
> 
> On 12-11 15:03, E. Versaevel wrote:
> > Hello,
> > 
> > I'm currently trying to setup a SIP environment for VoIP calling for my
> > final school project, so I'm just working with VoIP/SIP for 2 weeks.
> > 
> > I'm using SER as a SIP proxy server, but the carrier/gateway I am using
> for
> > calling to/from PSTN is requiring me to register at their server and
> > authorize outgoing calls, which is something SER won't do. So I got the
> idea
> > to use asterisk between the PSTN carrier and SER for the authorization,
> > since Asterisk can register and auth itself.
> > 
> > 
> > SIP  ---------   SIP     ---------    SIP    ---------   PSTN
> > -----|       |-----------|       |-----------|       |------
> >      ---------           ---------           ---------
> >        SER               Asterisk             Carrier
> > 					<-- auth stuff -->
> > 	  <--  sip relay  -->
> > 
> > Has anyone here ever tried a similar setup or is this an impossibility ?
> > 
> > Kind regards,
> > 
> > E. Versaevel
> > 
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>