Re: FQND as Send-by in VIA header

Well, I should call Listeningpoint.setSendby(String) to set the FQDN
name.

urs Lebing



On Wed, 2006-08-30 at 11:12 +0200, Lebing Xie wrote:
> Hallo, 
> 
> As I send the FQDN and port instead IP address in VIA header, got
> following error.
> 
> "javax.sip.TransactionUnavailableException: sentBy does not match the
> sentby setting of the ListeningPoint o2-app.o2.open-ims.org:5060
>         at
> gov.nist.javax.sip.SipProviderImpl.getNewClientTransaction(SipProviderImpl.java:285)"
> 
> I checked out source (CVS today), in class
> "gov.nist.javax.sip.stack.MessageProcessor", the local IP is used for
> host, so FQDN is not allowed?
> 
> according to 3261 18.1.1
> "   Before a request is sent, the client transport MUST insert a value
> of the "sent-by" field into the Via header field.  This field contains
>    an IP address or host name, and port.  The usage of an FQDN is
>    RECOMMENDED.  This field is used for sending responses under certain
>    conditions, described below.  If the port is absent, the default
>    value depends on the transport.  It is 5060 for UDP, TCP and SCTP,
>    5061 for TLS.
> "
> 
> urs Lebing
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