Setting a dialplan variable with asterisk cli output

Asterisk Asterisk Support
1

I would like to use some out put from core show channels count in a dial plan variable.
1 active channels
1 active calls
4 calls processed

I can’t see a dedicated dialplan variable which shows me active channels. Is there a way to execute an asterisk cli command from the dialplan and set the results as a dialplan variable?

2

create a AGI with three variables phone_number,start_time and end_time at the beginning of the dialplan call this agi which will update the mysql with phone_number and start_time but end_time as null.
now at hangup i.e(h exten)u will call the same agi to update the mysql with end_time

now when you select count the DATABASE with end_time as NULL you will get all the active calls and store the result in AGI variable and call the variable as per you requirement in the dialplan . now other parameters you can get mathematically in the same dialplan…

3

Thanks for the idea but it’s not realtime.

I’m interested to know how many calls are inprgress whilst still in the call.

I have done somthing similare but writted to SQL via odbc but again this not real time.

I’m surprised I can’t find a dialplan varable which simply shows how many calls are in progress!!

4

There is a function that will return the output of shell command. Run that with asterisk -rx.

I don’t think you requirement is common. Why do you need this value?

5

I’ll look into that idea.

Initial investigation looks like I may have to use the set command to set a returned agi response.

What I was looking to do is have the dialplan have some knowledge of the current number of calls from a capacity point of view and maybe react in some way.

For example if there are 50 active calls I may like to say to the 51st caller that there are already 50 calls in progress. Perhaps they would like to call back.

I may want to run a script based on high capacity.

I identified the asterisk command line returned the current number of active channels but can’t find an alternative dialplan variable.

6

i think this one can help you out…

edit the below given code as per your manager.conf
and run this PHP script.

<?php $strHost="127.0.0.1"; $strUser="obdadmin";//USE YOUR MANAGER.conf USERID $strSecret="admin";//MANAGER.conf PASSWORD $token = md5(uniqid(rand())); $strWaitTime="10"; $wrets=""; $oSocket = @fsockopen($strHost, 5038, $errnum, $errdesc) or die("Connection to host failed"); fputs($oSocket, "Action: login\r\n"); fputs($oSocket, "Events: off\r\n"); fputs($oSocket, "Username: $strUser\r\n"); fputs($oSocket, "Secret: $strSecret\r\n\r\n"); fputs($oSocket, "Action: command\r\n"); fputs($oSocket, "ActionID: $token\r\n"); fputs($oSocket, "command: core show channels count\r\n\r\n"); fputs($oSocket, "WaitTime: $strWaitTime\r\n"); fputs($oSocket, "Action: Logoff\r\n\r\n"); while (!feof($oSocket)) { $wrets .= fread($oSocket, 8192); } fclose($oSocket); preg_match('/(.*) active channels/',$wrets,$matches); $active_channels = $matches[1]; echo 'active : '.$active_channels.chr(10); $active_channels; $total_channel=60;// change this value to the total number of E1,s multiplied by 30 you have. $active_channels=$active_channels; $free_channels=$total_channel-$active_channels; echo"free channels: ".$free_channels; preg_match('/ActionID: (.*)/',$wrets,$matches); $ActionId = $matches[1]; ?>
7

Hi

If all you want to do is [quote]For example if there are 50 active calls I may like to say to the 51st caller that there are already 50 calls in progress. Perhaps they would like to call back.[/quote] then use group count and count the incoming and outgoing calls.

viewtopic.php?f=1&t=83177&p=175030&hilit=groupcount&sid=ba49101398d27b8a7270c630fccc134e#p175030

8

I was expecting this to work

exten => 7000,1,Answer()
exten => 7000,2,Set(CHANACTIVE=${SHELL(/usr/sbin/asterisk -rx ‘core show channels’ | grep channels)})
exten => 7000,3,Verbose(${CHANACTIVE})
exten => 7000,4,Hangup

Or even better

exten => 7000,1,Answer()
exten => 7000,2,Set(CHANACTIVE=${SHELL(/usr/sbin/asterisk -rx ‘core show channels’ | grep ‘channels’ | cut -d’ ’ -f1)})
exten => 7000,3,Verbose(${CHANACTIVE})
exten => 7000,4,Hangup

I get some output with

exten => 7000,1,Answer()
exten => 7000,2,Set(CHANACTIVE=${SHELL(/usr/sbin/asterisk -rx ‘core show channels’ )})
exten => 7000,3,Verbose(${CHANACTIVE})
exten => 7000,4,Hangup exten => 7000,1,Answer()

9

I have also tried

exten => 7000,1,Answer()
exten => 7000,2,Set(TES=${SHELL(/etc/config/activechannels.sh)})
exten => 7000,3,Verbose(${TES})
exten => 7000,4,Hangup

activechannels.sh
asterisk -rx ‘core show channels’ | grep ‘channels’ | cut -d’ ’ -f1

and I do not get an out put to the dial plan

I think I am missing somthing simple here

It would also apear that I can recive simple text back from a command or a script like

${SHELL(echo 123):0:-1}
or
${SHELL(/test.sh):0:-1}

test.sh
echo “123”

but nothing more complicated

10

After much poking and proding I got to this which works but what a mess.

exten => 7000,1,Answer()
exten => 7000,2,Set(NUM=${SHELL(/usr/sbin/asterisk -rx ‘core show channels’ | grep ‘active call’ | cut -d’ ’ -f1 | tr “\n” " " | sed -e “s/ //g”)})
exten => 7000,3,Verbose(${NUM})
exten => 7000,4,Hangup

anyone see a simpler way of doing it?

1 Like
11

Thats fine but it is system wide and not fine grained to specific queues and will also include incoming and outgoing, Groupcount that I pointed out earlier lets you count different queues and different types of calls. So is more scalable