refs #B20363: fix(SIP): Add check for form existence and default 'r=0' parameter
Details:
- Un-commented the previously disabled class logic.
- Added && !empty($sipArray[CLIENT_FORM])
to ensure the check verifies if the element is a form.
- Ensured the default r=0
is set when no r
parameter is specified.
- Resolves Bug #9121: Missing default SIP parameter for forms.