27 Oct
2005
27 Oct
'05
2:55 p.m.
This is exactly what I am trying to overcome. Do third party PSTN
providers typically employ any other means of monitoring a call? I
would think the would automatically disconnect the call after a
certain amount of time if there was no media detected.
On 10/27/05, Iqbal <iqbal(a)gigo.co.uk> wrote:
problem with session timers, is if you have several
different routes and
you dont control all the end gateways....then its a pain, so I would
think you would need a plan B, just in case to ensure you double
checked, but agree with bogdan, b2bua i great but I think the overhead
is not needed.
Iqbal
Bogdan-Andrei Iancu wrote:
Hi Greg,
that's the fortunate case of having already a B2BUA on the path :).
But only for this particular case, I find the usage of a B2BUA a
little bit to "heavy"....
Session Timer is actually doing a great job ;)
regards,
bogdan
Greg Fausak wrote:
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The re-INVITEs definitely work. I run some
setups with
Jasomi inline (a commercial inline b2bua). I configure them to
reINVITE, works like a charm. If the reINVITE isn't answered (in either
direction) the Jasomi sends BYEs in both directions. I believe other
commercial gear works that way.
Also, I believe Session-Timers are supported by Cisco gateways, but
I don't have experience with those.
-g
On 10/27/05, Daryl Sanders <daryl.sanders(a)gmail.com> wrote:
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.
Thanks for the info guys! It sounds like I need
to do a little reading
up on cseq to determine if this will even work, or find a PSTN gateway
provider that supports Session-Timers.
- Daryl
On 10/27/05, Bogdan-Andrei Iancu <bogdan(a)voice-system.ro> wrote:
> by sending re-INVITEs from the middle of the path you will increase
> the
> cseq number differently on each side...so you will need to synchronize
> the cseq value when some in-the-dialog requests are passing through
> your
> proxy....and that's quite complicated....
>
> regards,
> bogdan
>
> Daryl Sanders wrote:
>
>
>
>> Would it be possible to fake a REINVITE then check the response to
>> determine if a call is still in session? Just brainstorming...
>>
>> - Daryl
>>
>>
>>
>
>
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--
Greg Fausak
greg(a)thursday.com