Subject: RE: [Megaco] MG handover

From: "Ternovsky, Igor" <[email-masked]>
Date: Wed, 15 Aug 2001 06:11:15 +0200

Thanks, Brian.

Sounds very right to me. 

I think it should be clarified in the standard. 
D.1.1 says: "The transaction identifier of each incoming message is compared
to the transaction identifiers of the recent responses sent to the same MId"
and after that  "MGs can simply detect duplicate transactions by looking at
the transaction identifier and MId only".
After reading this, one can think that MG has to keep multiple tables of
confirmed transactions (per MId) and be able to communicate with multiple
MIDs simultaneously.

Igor

-----Original Message-----
From: Rosen, Brian [mailto:[email-masked]]
Sent: Tuesday, August 14, 2001 2:30 PM
To: 'Ternovsky, Igor'; Megaco (E-mail)
Subject: RE: [Megaco] MG handover

Ignore the request silently.  It should never happen.

Brian

> -----Original Message-----
> From: Ternovsky, Igor [mailto:[email-masked]]
> Sent: Tuesday, August 14, 2001 12:21 AM
> To: Megaco (E-mail)
> Subject: [Megaco] MG handover
> 
> 
> 
> Hello List,
> 
> Assume that MG is provisioned with MIDs of MGC1 and MGC2. MGC1 is the
> current master.
> All of the sudden MG gets a request (not ServiceChange, nor 
> Audit) from
> MGC2.
> What is the correct MG behavior in this case?
> 
> 1) accept the request and assume that MGC2 became a new 
> master (implicit
> redirection).
> 	- new Notify s will be sent to MGC2
> 	[ flush table of confirmed transactions from MGC1 ] 
> 2) accept the request keeping the old master.
> 	- new Notify s will be sent to MGC1
> 	- MG has to keep two tables of confirmed transactions
> 3) reject the request and wait for ServiceChange with redirection
> 
> The second not related question that I posted some time ago, 
> but it passed
> unnoticed.
> 
> How MGC can turn on/off a silence suppression? There seems to 
> be no the
> appropriate SDP attribute.
> In MGCP SilenceSuppression is controlled by using 
> LocalConnectionOptions .
> 
> Thanks,
> 
> Igor Ternovsky
> [email-masked]
> +972 9 9717414
> 
> 
> 
> 
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