Mr. Jennings:
Thanks.
On what condition will the client break down the TLS channel?
I saw one implementation that will disconnect the TCP connection of the active call session
and establish a new TCP connection when sending BYE to terminate the call. It will then
break down the TLS channel. Is it necessary?
If any request message sent from the client gets the error response (500, 603,....), should
the client need to break down the TLS channel and establish a new one?
Is it possible for the proxy server to send close_notify alert to turn off the TLS channel?
Thanks.
From: Cullen Jennings <[EMAIL PROTECTED]> To: Todd Huang <[EMAIL PROTECTED]> CC: <[EMAIL PROTECTED]> Subject: Re: [Sip-implementors] SIP TLS Date: Tue, 14 Dec 2004 19:54:21 -0700
yes, If a TLS connection is made to foo.com, then it can be left up for a long time and any message destined for foo.com can be sent over it.
inline ...
On 12/13/04 4:59 AM, "Todd Huang" <[EMAIL PROTECTED]> wrote:
> Mr. Jennings:
>
> Thanks.
>
> As you mentioned, the TLS channels should be kept up for a ling time and
> can be used for
> many transactions. Do you mean that the TLS channel should be always there
> once it had been
> successfully established between the client and the proxy server?
>
> For example, the client successfully establishes the TLS channel with
> the proxy server and
> does the following operations:
>
> 1. Sends Register to the Proxy server
> 2. Sends Invite to another user, but cancels it before the party answers it
> 3. Sends Invite to another user, and terminates the call by sending Bye
> 4. Sends Invite to the same user again later
>
> Will all these SIP messages be sent on the same TLS channel without
> breaking it down and
yes - assuming all these messages were sent to the same outbound proxy
>
> If the client is equipped with two voice ports, should we establish
> independent TLS channel
> for each voice port respectively? Or all of the transactions held between
> the client and the Proxy
> server can use the same TLS channel no matter which port generating it?
>
They can be done on one port (assuming they both connect to the same proxy)
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