[AsteriskBrasil] Asterisk 1.4.x e canreinvite=update

[cleviton.araujo@caixa.gov.br]

Pessoal:

No arquivo sip.conf.sample do Asterisk 1.4.x, informa que a media pode ser redirecionada entre os dispositivos SIP, de forma que a voz pode passar diretamente entre eles, sem precisar fazer um re-invite conforme explicado abaixo.

Quem está usando o Asterisk 1.4.x? Sabe informar se isso está funcionando assim mesmo?

Se estiver funcionando assim talvez tenha resolvido um dos maiores gargalos do Asterisk. Porque agora podemos mandar dígitos no header do SIP em vez do RTP.
Alguém já testou isso?


Cléviton.







;----------------------------------- MEDIA HANDLING --------------------------------
; By default, Asterisk tries to re-invite the audio to an optimal path. If there's
; no reason for Asterisk to stay in the media path, the media will be redirected.
; This does not really work with in the case where Asterisk is outside and have
; clients on the inside of a NAT. In that case, you want to set canreinvite=nonat
;
;canreinvite=yes		; Asterisk by default tries to redirect the
				; RTP media stream (audio) to go directly from
				; the caller to the callee.  Some devices do not
				; support this (especially if one of them is behind a NAT).
				; The default setting is YES. If you have all clients
				; behind a NAT, or for some other reason wants Asterisk to
				; stay in the audio path, you may want to turn this off.

				; In Asterisk 1.4 this setting also affect direct RTP
				; at call setup (a new feature in 1.4 - setting up the
				; call directly between the endpoints instead of sending
				; a re-INVITE).

;canreinvite=nonat		; An additional option is to allow media path redirection
				; (reinvite) but only when the peer where the media is being
				; sent is known to not be behind a NAT (as the RTP core can
				; determine it based on the apparent IP address the media
				; arrives from).

;canreinvite=update		; Yet a third option... use UPDATE for media path redirection,
				; instead of INVITE. This can be combined with 'nonat', as
				; 'canreinvite=update,nonat'. It implies 'yes'.




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