[SR-Users] checking if calls are still active

Vic Jolin victor.jolin at gmail.com
Mon Nov 1 16:24:26 CET 2010


That's interesting, can you tell me more about that draft?

On Mon, Nov 1, 2010 at 11:18 PM, marius zbihlei <marius.zbihlei at 1and1.ro>wrote:

> On 11/01/2010 05:13 PM, Vic Jolin wrote:
>
>> Hi,
>>
>> Just want to ask what is the best way to check if calls are still active
>> especially when we are not handling media?
>>
>> Thanks
>>
> Hello
>
> There is SST (Sip Session Timers RFC 4028), which is implemented in the SST
> module, but at least 1 UA must know the extension. Also I have been working
> on a IETF draft  to use end-to-end OPTIONS ping to determine the operational
> status of a UA.(it works well with B2BUA, relatively well with stateful
> proxies). If you are interested I can talk more about the draft and how I
> propose using OPTIONS requests for this.(no changes on UAs are necessary)
>
> Marius.
>
>
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