On Wed, May 28, 2008 at 4:43 PM, Iñaki Baz Castillo <ibc(a)in.ilimit.es> wrote:
Prior to rfc3311 (UPDATE), INFO without body was
commonly used to check dialog
state as alternative to using re-INVITE. Now that rfc3311 is available, it
is more commonly used.
If Twinkle supports rfc2976, it must return 200 instead of 415 when INFO
contains no body.
RFC 2976 section 2.2:
"A 200 OK response MUST be sent by a UAS for an INFO request with no message
body if the INFO request was successfully received for an existing call."
"A 481 Call Leg/Transaction Does Not Exist message MUST be sent by a UAS if
the INFO request does not match any existing call leg."
Entonces, para tu caso, ¿es 'menos feo' mandar un INFO (sin message
body) que un OPTIONS?
Saludos,
--
Victor Pascual Ávila