SIP URI question
C. Ed Felt
ed at thefelts.net
Thu Feb 16 13:51:53 MST 2006
> I am receiving a call with a Contact: that contains
> <sip:801XXXXXXX at 126.96.36.199:5060;tgrp="sometext">
> OpenSer parses this fine and sends it to the correct SIP endpoint.
> That SIP endpoint, which is not open source, then issues an INVITE to
> OpenSer and sets the From: header to the origianl Contact: above.
> OpenSer then complains with this message:
> 6(11704) ERROR: parse_to : unexpected char ["] in status 5:
> <<<sip:Unknown at 188.8.131.52:5060;tgrp=>> .
> 6(11704) ERROR:parse_from_header: bad from header
> My question is, is it valid to have ;tgrp="sometext" in the <....>
> section of a URI, and is it also valid to have a " in a uri. Reading
> through the RFC's, it is not listed as reserved so my initial thought
> is the OpenSer should allow it in the From: header, in the URI.
> PLUG: http://plug.org, #utah on irc.freenode.net
> Unsubscribe: http://plug.org/mailman/options/plug
> Don't fear the penguin.
Sorry this info comes so late. Work has been horribly busy and I've had
no time to read my user list emails :(. We (at my VoIP company) have
been using SER for a few years now and I've seen SIP URIs that look like
the one you show here. The ' " ' can be a real pain to deal with in our
home grown Python based billing system, but we haven't had serious
issues from it. I don't know of anything in the SIP RFC that says you
can't use the ' " ' as well. In fact we use a Session Border Controller
that garbles the URI for security reasons, and we can end up with all
kinds of strange symbols in the alias of the URI ('
io23-85"72hbn*"@<someIP>'. So I don't see why OpenSER should complain.
We are planning to move to OpenSER soon. I guess I'll have to watch for
the issue you mentioned here.
More information about the PLUG