[sr-dev] about contact params

[Juha Heinanen]

i noticed that if i add ;alias param to contact header that does not
surround its contact uri in <>s like this:

Contact: sip:foo at bar;alias=value

then some sip entities interpret ;alias as header param rather than uri
param.

so i went and added <>s if they are not present resulting to this:

Contact: <sip:foo at bar;alias=value>

i have tried to figure out from rfc3261 what kind of param ;alias is in
the first example, but have not found the answer.  looks like it is
unspecified in rfc3261.

any comments on this?

-- juha