[SIP Beyond VoIP] MSRP: Response code 481 & 506

Saúl Ibarra Corretgé saul at ag-projects.com
Fri Aug 10 09:42:43 CEST 2012


On Aug 8, 2012, at 3:04 PM, venu Y wrote:

> Hi,
> "When the first request arrives, its To-Path header field should contain a URI that the listening element provided in the SDP for a session. The element that accepted the connection looks up the URI in the received request, and determines which session it matches. If a match exists, the node MUST assume that the host that formed the
> connection is the host to which this URI was given. If no match exists, the node MUST reject the request with a 481 response. The node MUST also check to make sure the session is not already in use on another connection. If the session is already in use, it MUST reject the request with a 506 response."
> Should we perform this validation only for the initial message or all messages received in a session.

Once you bind a connection and a session you shouldn't need to continue checking it. Unless you are sharing connections among sessions, that is.

> Giving 481 is O.K, but for 506 should the client need to search all the sessions in all connections :-(
> Thanks for your time.
> Regards
> -Venu
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Saúl Ibarra Corretgé
AG Projects

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