Re: [sipX-dev] Global Call Pickup: "*allcredentials" in SUBSCRIBE To: field
On Tue, 2007-04-03 at 18:19 -0500, Paul Mossman wrote:
> On 4/3/07, Dale Worley <dworley@xxxxxxxxxxx> wrote:
> > If I'm reading Paul's situation correctly, the "*allcredentials" shows
> > up in the To: header, but the request-URI is a valid contact for the
> > phone.
>
> Yes, that is correct. I'm trying to confirm whether or not it is
> valid for the To: header to contain a URI that means nothing to the
> phone. It causes problems for an LG 6812, and consequently Global
> Call Pickup fails. But if the "*allcredentials" URI in the To: header
> is valid, then it is a problem in the LG phone.
It is a common error for phones (and proxies and other things) to
incorrectly attempt to make decisions based on the To header address.
Basically, the address in the To header is historical information, but
because the phone does not have global knowledge of the dial plan or
forwarding, it cannot know all the addresses that might correctly be
delivered to it (how would your phone know that I've forwarded my phone
to you - the To header will have my address when a call for me lands on
your phone).
So yes, it is a phone problem.
--
Scott Lawrence tel:+1-781-938-5306;ext=162 or sip:slawrence@xxxxxxxxxxx
sipXpbx project coordinator - SIPfoundry http://www.sipfoundry.org/sipX
Chief Technology Officer - Pingtel Corp. http://www.pingtel.com/
