[Freeswitch-users] Limit concurrent calls

Avi Marcus avi at avimarcus.net
Fri Mar 29 12:06:49 MSK 2013 

Ah!

You're using the same hash value for each user.
it's $backend $realm $resource.
So if you want each user to *different* limits, you need to name their
realm/resource differently.

E.g. I use <action application="limit" data="hash outbound 1000 2"/> which
limits outbound *for user 1000* to only 2 calls.

So do something like: <action application="limit" data="hash
fraud_protection calls_max_intl_1000 1 !NORMAL_TEMPORARY_FAILURE" />

ALSO:
This is a BAD idea! <condition field="caller_id_number" expression="1000$"
/>
1) it matches any number that ends in 1000 -- you meant to do ^1000$
2) Anybody can set the caller ID number to anything they want (unless your
system is completely firewalled and they can't access it, except internally
and you TRUST everyone...) and then get access to this route.
The suggestion is to create users and set passwords or ACL for them, and
then set a variable accountcode. That variable is added internally so is as
safe as the credentials. Use ${accountcode} for your match then.
See: http://wiki.freeswitch.org/wiki/XML_User_Directory_Guide -- I'll
update it a bit...

-Avi Marcus
BestFone

On Fri, Mar 29, 2013 at 9:30 AM, Tomasz Szuster <tomasz.szuster at gmail.com>wrote:

> <extension name="test1" >
>    <condition field="caller_id_number" expression="1000$" />
>    <condition field="destination_number" expression="^(61\d{7})$" >
>        <action application="limit" data="hash fraud_protection
> calls_max_intl 3 !NORMAL_TEMPORARY_FAILURE" />
>        <action application="set" data="RECORD_TITLE=Recording
> ${destination_number} ${caller_id_number} ${strftime(%Y-%m-%d %H:%M)}" />
>        <action application="set" data="media_bug_answer_req=true" />
>        <action application="set" data="recording_follow_transfer=true" />
>        <action application="set" data="continue_on_fail=true" />
>        <action application="set" data="hangup_after_bridge=true" />
>        <action application="bridge"
> data="{codec_string='PCMA'}sofia/gateway/${distributor(distributor1)}/$1"
> loop="2" />
>    </condition>
> </extension>
>
>
> <extension name="test2" >
>    <condition field="caller_id_number" expression="2000" />
>    <condition field="destination_number" expression="^(61\d{7})$" >
>        <action application="limit" data="hash fraud_protection
> calls_max_intl 1 !NORMAL_TEMPORARY_FAILURE" />
>        <action application="set" data="media_bug_answer_req=true" />
>        <action application="set" data="recording_follow_transfer=true" />
>        <action application="set" data="continue_on_fail=true" />
>        <action application="set" data="hangup_after_bridge=true" />
>        <action application="bridge"
> data="{codec_string='PCMA'}sofia/gateway/${distributor(distributor2)}/$1"
> loop="3" />
>    </condition>
> </extension>
>
>
> logs:
>
> first call:
>
> EXECUTE sofia/internal/1000 at sip1.linuxtechnology.com.pl limit(hash
> fraud_protection calls_max_intl 3 !NORMAL_TEMPORARY_FAILURE)
> 2013-03-29 06:12:22.954993 [INFO] switch_limit.c:126 incr called:
> fraud_protection_calls_max_intl max:3, interval:0
> 2013-03-29 06:12:22.954993 [INFO] mod_hash.c:202 Usage for
> fraud_protection_calls_max_intl is now 1/3
>
>
> During first call, I've tried to establish second call:
>
> EXECUTE sofia/internal/2000 at sip1.linuxtechnology.com.pl limit(hash
> fraud_protection calls_max_intl 1 !NORMAL_TEMPORARY_FAILURE)
> 2013-03-29 06:12:31.915022 [INFO] switch_limit.c:126 incr called:
> fraud_protection_calls_max_intl max:1, interval:0
> 2013-03-29 06:12:31.915022 [INFO] mod_hash.c:189 Usage for
> fraud_protection_calls_max_intl is already at max value (1)
> 2013-03-29 06:12:31.915022 [DEBUG] switch_channel.c:3011 (sofia/internal/
> 2000 at sip1.linuxtechnology.com.pl) Callstate Change RINGING -> HANGUP
> 2013-03-29 06:12:31.915022 [NOTICE] mod_dptools.c:4326 Hangup
> sofia/internal/2000 at sip1.linuxtechnology.com.pl [CS_EXECUTE]
> [NORMAL_TEMPORARY_FAILURE]
>
> Regards.
> Tom
>
>
> On Thu, Mar 28, 2013 at 11:59 PM, Avi Marcus <avi at avimarcus.net> wrote:
>
>> Can you give some of your dialplan and logs? It sounds like you're using
>> it fine.
>> Do you have transfers going on in the dialplan?
>>
>> -Avi
>>
>> On Fri, Mar 29, 2013 at 12:36 AM, Tomasz Szuster <
>> tomasz.szuster at gmail.com> wrote:
>>
>>> Hi Nick.
>>>
>>> I used different gateways.
>>>
>>> Regards
>>> Tom
>>> On 28 Mar 2013 23:21, "Nick Vines" <jnvines at gmail.com> wrote:
>>>
>>>> Try changing "gateway" to something like "gateway_dialplan1" and
>>>> "gateway_dialplan2". You are just querying the same limit data
>>>> otherwise.
>>>>
>>>>
>>>> On Thu, Mar 28, 2013 at 3:02 PM, Tomasz Szuster <
>>>> tomasz.szuster at gmail.com> wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I've set up limit for outgoing calls using
>>>>> http://wiki.freeswitch.org/wiki/FS_weekly_2010_12_01, especially by
>>>>> adding:
>>>>>
>>>>> limit hash fraud_protection calls_max_intl 32 !NORMAL_TEMPORARY_FAILURE
>>>>>  to the dialplan.
>>>>>
>>>>> When I created second dialplan with different call_max_intl value
>>>>> freeswitch did not get it.
>>>>> It has still remember call_max_intl 32 from first dialplan.
>>>>>
>>>>> At console I've got:
>>>>>
>>>>> *Usage for fraud_protection_calls_max_intl is already at max value
>>>>> (32)*
>>>>>
>>>>> I've also try with:
>>>>>
>>>>> <action application="limit_execute" data="hash outbound gateway 12
>>>>> bridge sofia/gateway/gateway/$1" />
>>>>>
>>>>> Result was the same as for limit hash.
>>>>>
>>>>> My goal is to create dialplans with different calls max where calls
>>>>> max value are treated separately.
>>>>>
>>>>> Can you please advice how to proceed, where to look ?
>>>>> --
>>>>> Regards.
>>>>> Tom
>>>>>
>>>>>
>>>>> _________________________________________________________________________
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>>>>> 
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>>>>
>>>>
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>>>>
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>>
>> _________________________________________________________________________
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>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>> http://wiki.freeswitch.org
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>>
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>>
>
>
> --
> Pozdrawiam
> Tomasz
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
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