2007/9/10, Jerry Richards <[EMAIL PROTECTED]>:
> Well, I figured out the problem with my nua_refer() invocation. The problem
> is the sofia-sip stack was rejecting the Refer-To header because it was not
> surrounded by <> brackets. I'm a bit surprised by this.
> I thought sofia-sip normally adds <> brackets if they are missing. This is
> not true?
This is a problem with SIP parser, the form without <> is ambiguous.
It was resolved in RFC 3261 (section 20.20) so that the URI without <>
(<addr-spec>) must not have "?" "," or ";" . Honestly, I don't why "?"
is not košer, but outside <> the "," separates header fields from each
other and ";" separates header parameters from the address and each
other.
--Pekka
> -----Original Message-----
> From:
> Sent: Friday, September 07, 2007 3:44 PM
> To: 'sofia-sip-devel@lists.sourceforge.net'
> Subject: FW: Determining cause of 900 Internal NUA Error
>
>
> Hello All,
>
> Can anyone help me with this problem? I'm really beginning to flounder on
> this one. The scenario is as follows:
>
> 1) Receive/connect incoming call.
> 2) Put call on hold.
> 3) Send/connect secondary outgoing call.
> 4) Transfer call 1 to call 2 using nua_refer().
> 5) -- I expect both calls to disconnect here ---
>
> The problem is that when I invoke nua_refer(), it kicks back with 900
> Internal NUA Error and I don't know why. I believe I'm sending the correct
> parameters as follows:
>
> nua_refer(nh,
> SIPTAG_REFER_TO_STR("sip:[EMAIL PROTECTED]
> bad-9fabf0848051;from-tag=pcDZjjNHS4a0e;to-tag=as209505db"),
> SIPTAG_REFERRED_BY_STR("sip:[EMAIL PROTECTED]:5061"),
> TAG_NULL());
>
> where nh = handle of 1st call,
> sip:[EMAIL PROTECTED] = far-end URL of 2nd call,
> 7957d0b6-3dc5-1225-abad-9fabf0848051 = Call-ID of 2nd call,
> pcDZjjNHS4a0e = from tag of 2nd call,
> as209505db = to tag of 2nd call,
> sip:[EMAIL PROTECTED] URL of local phone.
>
> Best Regards,
> Jerry
>
>
> -----Original Message-----
> From:
> Sent: Tuesday, September 04, 2007 2:09 PM
> To: 'sofia-sip-devel@lists.sourceforge.net'
> Subject: Determining cause of 900 Internal NUA Error
>
>
> Hello All,
>
> What is the best way to determine the cause of a 900 Internal NUA Error
> event? I am getting these, but not sure why.
>
> In one case, I'm invoking nua_refer() in the following way, and it returns a
> 900 Internal NUA Error:
>
> nua_refer(nh,
> SIPTAG_REFER_TO_STR("sip:[EMAIL PROTECTED]
> bad-9fabf0848051;from-tag=pcDZjjNHS4a0e;to-tag=as209505db"),
> TAG_NULL());
>
> And the refer message is not sent.
>
> Best Regards,
> Jerry
>
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>
--
Pekka.Pessi mail at nokia.com
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