On 12/30/14 7:06 AM, isshed wrote:
Hi All,
Could anybody please let me know if the SIP option tags are case sensitive?
No, they are not.
RFC3261, section 7.3.1:
When comparing header fields, field names are always case-
insensitive. Unless otherwise stated in the definition of a
particular header field, field values, parameter names, and parameter
values are case-insensitive. Tokens are always case-insensitive.
Unless specified otherwise, values expressed as quoted strings are
case-sensitive. For example,
And 'option-tag' is defined as a 'token'.
Thanks,
Paul
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