[Serusers] When will SER send Stop message to Radius Server

[matt morris]

Hello Marian,

So SER indeed need to receive the "200 Ok" from the UA2 before it will send 
the accounting stop message to the Radius server? I was hoping SER will send 
the stop when it receives the initial BYE from either UA (whichever comes 
first)

>From: Marian Dumitru <marian.dumitru at voice-sistem.ro>
>To: matt morris <mmorris36 at hotmail.com>
>CC: serusers at lists.iptel.org
>Subject: Re: [Serusers] When will SER send Stop message to Radius Server
>Date: Mon, 28 Mar 2005 15:36:02 +0200
>
>Hi Matt,
>
>There is no ACK for BYEs - ACK is used only for INVITE requests.
>Most probably XLite fails (if receives) to recognize the BYE generated by 
>the HW phone - the lack of a reply to BYE will lead to retransmissions and 
>finally to time-out - the extra 30 seconds is exactly the time-out period 
>for non-INVITe requests.
>
>Best regards,
>Marian
>
>matt morris wrote:
>>Hello List,
>>
>>First, many thanks to those who replied my previous dumb questions. My SER 
>>0.9.0 with mysql auth and radius accounting with mysql is seemingly 
>>working ok.
>>
>>I have a question about SER's Radius accounting, but not sure how to ask, 
>>here is my situation:
>>
>>I'm testing out calls between XLite (caller) and a hardware phone 
>>(callee), but for some reason the call duration is always 30 seconds 
>>longer than actual (For both cases, it's the callee who does the hang up). 
>>I tried calls between XLite and XLite and the duration would be accurate. 
>>So I ngrep-d the traffic for both scenairos, for XLite-XLite's case, the 
>>flow is the side who hangs up (say, UA1) will send the BYE to SER then SER 
>>relays the BYE to UA2. Then UA2 sends an ACK to SER and SER relays the ACK 
>>to UA1. For the XLite to HW phone's case, the phone will still send the 
>>BYE to SER and SER will relay it to XLite. However, XLite will not send an 
>>ACK to SER. And the phone sends another BYE to SER and then SER relays it 
>>to XLite -this is repeated for 5 - 6 times until finally SER will just 
>>send a 408 Request Timeout to the HW Phone. And it seems this is the time 
>>when SER sends the Stop message to the Radius server, and hence the extra 
>>30-sec call duration. So I'm wondering if SER indeed needs the ACK for the 
>>BYE message before sending the accounting stop message to Radius? Or is my 
>>situation caused by some other reasons? Thank you in advance.
>>
>
>--
>Voice System
>http://www.voice-system.ro

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