I am looking for a way to limit the number of simultaneous calls that a given user can establish thru ser at a time. I realize of course that any options would require stateful use of ser but that is already a requirement in this project.
Thanks for any insight
That's not possible for the reason you mentioned.
Jan.
On 30-01 13:46, Glenn Dalgliesh wrote:
I am looking for a way to limit the number of simultaneous calls that a given user can establish thru ser at a time. I realize of course that any options would require stateful use of ser but that is already a requirement in this project.
Thanks for any insight _______________________________________________ Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
You may be able to use an external workaround. If you use radius accounting, and a radius server, such as radiator, which lets you create your own "session database" in an SQL table, based on the START/STOP accounting messages.
It would be a lot of work, but in your outgoing call processing, you could use one of the radius_uri functions, to have the radius server, check the session DB, and allow/deny it based on that.
--Dave
-----Original Message----- From: serusers-bounces@iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Jan Janak Sent: Friday, January 30, 2004 5:15 PM To: Glenn Dalgliesh Cc: serusers@lists.iptel.org Subject: Re: [Serusers] Limiting Calls per registrar
That's not possible for the reason you mentioned.
Jan.
On 30-01 13:46, Glenn Dalgliesh wrote:
I am looking for a way to limit the number of simultaneous calls that
a given user can establish thru ser at a time. I realize of course that any options would require stateful use of ser but that is already a requirement in this project.
Thanks for any insight _______________________________________________ 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
After a few discussion with some colleges, although it would not be a simple task, we feel it would be possible to maintain a table that would allow one to limit calls on a per registrar basis by either using the table you are creating in memory to support statefull transactions currently or creating a seperate sql based approach. I might even have a programmer who would be willing to put in some time on this for the project but the it lead me to remember my days of RAS/Radius Authentication. In the early days we had problem with lost radius accounting info caused by a crash or packet loss. This would leaving users locked out because of connection limits set on the radius profiles. Of course the answer was to start polling RAS's via snmp. This allowed us to clear bad data periodically from the radius connected users table. Along these lines I starting looking to see if there was any type of status messages or request that could be sent at a UA to verify it's call status and the only thing that I came across mention of session timers but I get the impression that some issues exist with support for this feature and not much energy is being placed on this because of that. Well, all this being said I would appreciate and input/direction in how you would like to see Call Limiting on a per user basis become a reality.
Thanks
----- Original Message ----- From: "Jan Janak" jan@iptel.org To: "Glenn Dalgliesh" ser@techhat.com Cc: serusers@lists.iptel.org Sent: Friday, January 30, 2004 8:15 PM Subject: Re: [Serusers] Limiting Calls per registrar
That's not possible for the reason you mentioned.
Jan.
On 30-01 13:46, Glenn Dalgliesh wrote:
I am looking for a way to limit the number of simultaneous calls that a
given user can establish thru ser at a time. I realize of course that any options would require stateful use of ser but that is already a requirement in this project.
Thanks for any insight _______________________________________________ Serusers mailing list serusers@lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers
I personaly think it is more interesting to encourage making calls rather than banning it.
Nevertheless, if you wish to ban calls based on user's status, then you must remember it somewhere. A simple possibility is to write a call stateful module which will keep a list of calls in some table. New calls will appear in the table (best inspiration can be imho found in the accounting module), all new call attempts will be checked against it.
To make sure that dead phones will not result in calls which are never terminated, you may wish to configure SER to use session timer. If the party, which understands session-timer, is still alive it will be able to detect the other party is dead and terminate the call. That's mostly ok -- people typicaly deploy all kind of limitations for calling to PSTN gateways and they are comfortable with delegating the accuracy job to them.
If you don't wish to rely on accuracy of UAs, you may wish to write a B2BUA on your own. Such a server will then keep track of call and will be able to terminate it on its own. That's however quite some work.
-jiri
At 06:29 PM 2/5/2004, Glenn Dalgliesh wrote:
After a few discussion with some colleges, although it would not be a simple task, we feel it would be possible to maintain a table that would allow one to limit calls on a per registrar basis by either using the table you are creating in memory to support statefull transactions currently or creating a seperate sql based approach. I might even have a programmer who would be willing to put in some time on this for the project but the it lead me to remember my days of RAS/Radius Authentication. In the early days we had problem with lost radius accounting info caused by a crash or packet loss. This would leaving users locked out because of connection limits set on the radius profiles. Of course the answer was to start polling RAS's via snmp. This allowed us to clear bad data periodically from the radius connected users table. Along these lines I starting looking to see if there was any type of status messages or request that could be sent at a UA to verify it's call status and the only thing that I came across mention of session timers but I get the impression that some issues exist with support for this feature and not much energy is being placed on this because of that. Well, all this being said I would appreciate and input/direction in how you would like to see Call Limiting on a per user basis become a reality.
Thanks
----- Original Message ----- From: "Jan Janak" jan@iptel.org To: "Glenn Dalgliesh" ser@techhat.com Cc: serusers@lists.iptel.org Sent: Friday, January 30, 2004 8:15 PM Subject: Re: [Serusers] Limiting Calls per registrar
That's not possible for the reason you mentioned.
Jan.
On 30-01 13:46, Glenn Dalgliesh wrote:
I am looking for a way to limit the number of simultaneous calls that a
given user can establish thru ser at a time. I realize of course that any options would require stateful use of ser but that is already a requirement in this project.
Thanks for any insight _______________________________________________ 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
-- Jiri Kuthan http://iptel.org/~jiri/
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David R. Kompel -
Glenn Dalgliesh -
Jan Janak -
Jiri Kuthan