I agree with Brett. It is unclear exactly what you are asking.
Also, *why* are you asking? Do you want to use something peculiar? Or
are you receiving something that is causing you grief?
Note that there are inherent problems with Alert-Info - if sent from
caller to callee there can be trust
> Is the below value acceptable in the Alert-Info header value?
>
> $@#$%^&*()_+{}:"<>?
The following is the ABNF. I'm not sure what Alert-Info header position
applies to your question.
Alert-Info = "Alert-Info" HCOLON alert-param *(COMMA alert-param)
alert-param = LAQUOT absoluteURI RAQUOT
Hi,
Is the below value acceptable in the Alert-Info header value?
$@#$%^&*()_+{}:"<>?
If the value is sent as
$@#$%^&*()_+{}:<>? with out a single double quote ", the INVITE is being
sent by UAC and is being accepted by UAS. If the value is sent as
$@#$%^&*()_+{}:"<>?" with two double quotes "
