Hi list,

we have found a solution to kevin's issue.

first, on top of dialplan:

variables definitions

<extension name="variables" continue="true">
                        <condition field="${destination_number}" expression=".*" break="never">
                                <action inline="true" application="set" data="limittotalcalls=200" /> ## limit of total call
                                <action inline="true" application="set" data="limitcps=${expr(ceil(${limittotalcalls}*10/100))}" /> ## sum of cps 10% = 20 CPS
                                <action inline="true" application="set" data="limitprogresscall=${expr(ceil(${limittotalcalls}*30/100))}" /> ## sum of call in progress 30% = 60 call in progress
                        </condition>
                </extension>

after in dialpan

fix hash with variable ${custdomain}, is ENUM domain of my customer.

<condition field="${limitcalls}" expression="^yes$" break="never">
                                <action application="limit" data="hash cps ${custdomain} ${limitcps}/1 limit_exceeded_cps XML excess_limit"/>
                                <action application="limit" data="hash total ${custdomain} ${limittotalcalls} limit_exceeded_total XML excess_limit" />
                                <action application="export" data="nolocal:execute_on_answer=limit hash answercall ${custdomain} -1"/>
                        </condition>

before bridge (end of dialplan):

<condition field="${cond(${expr(${limit_usage(hash total ${custdomain})} - ${limit_usage(hash answercall ${custdomain})})} > ${limitprogresscall} ? true:false)}" expression="^true$" break="on-true">
                                <action application="log" data="WARNING LOG : Call progress > ${limitprogresscall} to ${custdomain}"/>
                                <action application="respond" data="503"/>
                                <action application="hangup" data="CALL_REJECTED"/>
                        </condition>

if 80 total calls - 30 answer calls = 50 calls in progress is < to 60 limit, call is passed

BUT, if 90 total calls - 29 answer calls = 61 calls in progress is > to 60 limit, call is rejected

This code is perfect to limit machine call for example.

Thanks for your response.

bye

2014-06-10 14:50 GMT+02:00 Markus Lindenberg <markus.lindenberg@gmail.com>:

Hi Kevin,

I'm using/abusing limit for limiting incoming calls *to* an extension, although I've just discovered that I would have the same problem, in my current implementation the limit for the callee is raised when the call is bridged:

First I do a inline lookup from the user directory and populate ${user_id} with the callee's id.

<condition>
<action inline="true" application="log" data="INFO Dialed number ${destination_number} is ${user_id}@${domain_name} in XML User Directory."/>


<action inline="true" application="set" data="user_busy=${cond(${limit_usage(db ${domain_name} ${user_id})} > 0 ? true : false)}"/>


<action inline="true" application="set" data="user_busy=${cond("${user_name}" == "${user_id}" ? false : ${user_busy})}"/>

</condition>

<condition field="${user_busy}" expression="false" break="never">


<action application="set" data="bridge_pre_execute_bleg_app=limit"/>
<action application="set" data="bridge_pre_execute_bleg_data=db ${domain_name} ${user_id} 100 !USER_BUSY"/>

<action application="limit" data="db ${domain_name} ${user_id} 100 !USER_BUSY"/>

<action application="set" data="fail_on_single_reject=USER_BUSY"/>

<action application="bridge" data="user/${user_id}@${domain_name}"/>

<anti-action application="log" data="INFO ${user_id}@${domain_name} is busy, not bridging call!"/>

</condition>

Now if I replace this:

<action application="set" data="bridge_pre_execute_bleg_app=limit"/>

<action application="set" data="bridge_pre_execute_bleg_data=db ${domain_name} ${user_id} 100 !USER_BUSY"/>

with that:

<action application="limit" data="db ${domain_name} ${user_id} 100 !USER_BUSY"/>

the callee is marked as busy directly before i try to bridge to the user. as soon as the call ends, the limit is reset. I just did a quick test though and didn't try all the corner cases.

best regards, markus

On Tue, Jun 10, 2014 at 12:11 PM, Avi Marcus <avi@avimarcus.net> wrote:

Just thinking out loud: you can use limit and an execute on answer to decrease the count, and also make sure it decreases it it fails.

I assume your ringing limit will be lower than channel limit? Otherwise the channel limit should suffice.

-Avi

On Jun 10, 2014 10:52 AM, "Kevin Mathy" <k.mathy@hexanet.fr> wrote:

Hi List,

I'm trying to find something on freeswitch to make a "per-user" limitation of concurrent "RINGING" calls (or more generally, calls in PROCEEDING state).

I've found the "max-proceeding" value I can set in switch.conf.xml, but it's a system's wide parameter, and I'd like more granularity...

So, after some time spent on the mailing list and with my friend Google, it seems that someone asked for quite the same thing 2 years ago, but didn't get any answer : http://marc.info/?l=freeswitch-users&m=134375187528797

So, today, is there anything to achieve this ? Maybe something based on the "limit" module ?

Thanks a lot,
Kevin

Bien cordialement,
Best Regards,

Kevin MATHY | Ingénieur VoIP

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_________________________________________________________________________
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Cordialement

HUBERT Mickaël
Ingénieur VOIP - Hexanet