[Serusers] reuse of existing tcp connection

Jiri Kuthan jiri at iptel.org
Thu Oct 16 17:55:20 CEST 2003


other way of dealing with NATs is use of nathelper -- nathelper can
send keep-alive messages to natted clients.

-jiri

At 02:17 PM 10/16/2003, Andrei Pelinescu-Onciul wrote:
>On Oct 16, 2003 at 17:01, Juha Heinanen <jh at tutpro.com> wrote:
>> i'm behind gprs service that doesn't allow any incoming udp packets or
>> establishment of inbound tcp connections.  when i register, a tcp
>> connection is established between my sip ua and ser.
>> 
>> if there is an existing tcp connection open between sip ua and ser, is
>> ser supposed to reuse it for all incoming sip traffic, such as
>> subscribes and notifies?
>
>Yes, ser will try first to reuse existing connection, but if for example
>you connect from foo:33001 to ser and then someone sends a message to
>foo or to foo:5060 ser will not find any match in its open connection
>list, so it will be forced to open a new one.
>Also all tcp connection will be closed (by ser) after some inactivity period 
>(3 min).
>
>Andrei
>
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--
Jiri Kuthan            http://iptel.org/~jiri/ 




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