Hi

Okay so that I'm on the same page with this, doe sthis mean if my GW supports this...from what I read cisco seems to, that on a INVITE coming from a UA (even if its not cisco), I can set session-expires, and use the GW then to drop the session...if so when dropped will it send a BYE

Iqbal

Java Rockx wrote:

Nevermind all - I found the answer (thanks Jan) in the archives.

http://lists.iptel.org/pipermail/serusers/2005-March/016484.html

Regards, Paul

On Wed, 23 Mar 2005 21:01:04 -0500, Java Rockx javarockx@gmail.com wrote:

...

Hi All.

Our PSTN gateway supports Session-Expires for re-INVITEs. The session timer is "automagically" enabled when dialing SIP->PSTN.

However, when calling PSTN->SIP re-INVITEs do not happen, however the PSTN GW does support them.

I think the problem is that PSTN->SIP calls need to (for some reason) explicitly request session timers.

How would I request this? I know I can add the "Session-Expires: 120;refresher=??" header, but do I then do this in the 200OK response back to the PSTN GW?

Also, if the PSTN->SIP call is asking the PSTN GW to enable session timers, would the "refresher=" tag be set to UAS or UAC?

Regards, Paul

---

Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

.

perfect, just what I needed for my kludge solution ...:-)

Iqbal

Jan Janak wrote:

Yes, exactly. You can force the cisco to send re-INVITEs and drop them on your SER proxy when the user runs out of credit. The cisco would terminate the call if the re-INVITE does not make it through.

Jan.

On 24-03 12:46, Iqbal wrote:

...

Hi

Okay so that I'm on the same page with this, doe sthis mean if my GW supports this...from what I read cisco seems to, that on a INVITE coming from a UA (even if its not cisco), I can set session-expires, and use the GW then to drop the session...if so when dropped will it send a BYE

Iqbal

Java Rockx wrote:

...

Nevermind all - I found the answer (thanks Jan) in the archives.

http://lists.iptel.org/pipermail/serusers/2005-March/016484.html

Regards, Paul

On Wed, 23 Mar 2005 21:01:04 -0500, Java Rockx javarockx@gmail.com wrote:

...

Hi All.

Our PSTN gateway supports Session-Expires for re-INVITEs. The session timer is "automagically" enabled when dialing SIP->PSTN.

However, when calling PSTN->SIP re-INVITEs do not happen, however the PSTN GW does support them.

I think the problem is that PSTN->SIP calls need to (for some reason) explicitly request session timers.

How would I request this? I know I can add the "Session-Expires: 120;refresher=??" header, but do I then do this in the 200OK response back to the PSTN GW?

Also, if the PSTN->SIP call is asking the PSTN GW to enable session timers, would the "refresher=" tag be set to UAS or UAC?

Regards, Paul

---

Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

.

---

Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

.

tks marian

Can I not set the session-timer based upon the initial time left which is calculated when a person initiates the call.

The way I do my billing, is that countries will be packaged, rather than allow anyone to call any country, and then top up there account, hence countries 1-33 come in pack A etc etc, since we feel that users tend to call at most 5 countries..if that, hence they will buy a pack which fits them.

Based on this we have a upper (blended cost) for each pack, which is what is assigned in our rate table (for customers), for internal usage we have a cost per country (just so that accounts knows exactly what it costs us).

Now when a user calls ...this is the aim .....an external script is called which sees which pack the country falls in, it knows the blended rate, and then works out max mins the customers has left , then I wanted to update the session timer (this is where I havent worked out how).

So he calls USA, has 60 mins left, hence the session timer for this call can be 1800 secs, whereas someone who has 10 mins left the session -timer would be 300 secs...I am not sure if I can do this, but it sounded good on paper :-)

If that is possible, and my end gateways support this, then I dont need to go down a heavy handed billing approach, which I am trying to avoid like the plague, because looking at the way telcoms is moving and considering billing a customer adds a huge weight to the cost of the business...even if its online, telcos will I think goto a flat pricing model, as more and more countries allow termination at the same price (or close).

Iqbal

On 3/26/2005, "Marian Dumitru" marian.dumitru@voice-sistem.ro wrote:

Hi Iqbal,

I think you should be aware of the limitations of this solution.

The accuracy of your billing will depend of the ST value. Ex: if a user has 5 more seconds credit at last re-INVITE he will be able to talk till the next re-INVITE comes - which will be in 2 minutes if ST value is 120. If you try to reduce ST to increase the accuracy, you risk to overload your server with re-INVITEs.

This will reflect mostly if you try to use rating plans with different time-units.

Best regards, Marian

Iqbal wrote:

...

perfect, just what I needed for my kludge solution ...:-)

Iqbal

Jan Janak wrote:

...

Yes, exactly. You can force the cisco to send re-INVITEs and drop them on your SER proxy when the user runs out of credit. The cisco would terminate the call if the re-INVITE does not make it through.

Jan.

On 24-03 12:46, Iqbal wrote:

...

Hi

Okay so that I'm on the same page with this, doe sthis mean if my GW supports this...from what I read cisco seems to, that on a INVITE coming from a UA (even if its not cisco), I can set session-expires, and use the GW then to drop the session...if so when dropped will it send a BYE

Iqbal

Java Rockx wrote:

...

Nevermind all - I found the answer (thanks Jan) in the archives.

http://lists.iptel.org/pipermail/serusers/2005-March/016484.html

Regards, Paul

On Wed, 23 Mar 2005 21:01:04 -0500, Java Rockx javarockx@gmail.com wrote:

...

Hi All.

Our PSTN gateway supports Session-Expires for re-INVITEs. The session timer is "automagically" enabled when dialing SIP->PSTN.

However, when calling PSTN->SIP re-INVITEs do not happen, however the PSTN GW does support them.

I think the problem is that PSTN->SIP calls need to (for some reason) explicitly request session timers.

How would I request this? I know I can add the "Session-Expires: 120;refresher=??" header, but do I then do this in the 200OK response back to the PSTN GW?

Also, if the PSTN->SIP call is asking the PSTN GW to enable session timers, would the "refresher=" tag be set to UAS or UAC?

Regards, Paul

-- Voice System http://www.voice-system.ro