[asterisk-users] how to push callerid for each user from sip phone on one side through asterisk (Digium) to E1 card running application on other side

[Robert Lister]

On Thu, Aug 09, 2007 at 11:07:50AM +0530, sanchal.singh at alliance-infotech.com wrote:
> Hi,
>       I am running asterisk PBX ( digium TE120P card configured) on one
> system. It is connected to E1 card running application on the other system.
> After establishing sync between two card, I am able to place call from sip
> phone to E1 card running application. I want to pass the callerid, when
> calling from sip phone to E1 card running application. Which all
> configuration files is to be changed in the asterisk.
> 	I am doing the following changes in extensions.conf
> 			exten=>115,1,SET(set(CALLERID(num)=11112)
> 			exten=>115,2,Dial(ZAP/g1/115,20)
> 
> 			So, when dialling from sip phone to extension 115 
> it pushes the callerid hardcoded for that extension to E1 card running 
> application, not for each user in sip.conf.
>
>

> Can anybody tell me how to insert the callerid to each users? Which all 
> are the configuration files, where changes are to be made? So that, when I 
> call from sip phone through asterisk PBX to E1 card running application, 
> callerid for each user from sip phone called should be forwarded to E1 
> card running application side. thanks and regards sanchal

There are two ways, depending on your setup.

Easiest method if you have a straightforward SIP config, set, for each 
extension in sip.conf, for example:

[1234]
callerid="Fred User" <11112>
...

Then this callerID string should be used.
(This sounds like what you have at the moment)

If you need to change it to something different depending on the trunk being 
used etc there are a variety of ways to do it, depending on how many users 
etc. You could use an asteris db lookup instead before you place the call in 
extensions.conf to overwrite what is set in sip.conf, to translate SIP extn 
caller id to something else (in the right place in extensions.conf):

exten => 115,1,Set(CALLERID(number)=${DB(${CALLERID(num)}/callerid)}}
exten => 115,2,Dial(ZAP/g1/115,20)

Then write a db entry for each client from the CLI:

asterisk -r

asterisk*CLI> database put 1234 callerid 11112
Updated database successfully

asterisk*CLI> database show 1234
/1234/callerid                                    : 11112

In this example a call with the callerid of "1234" would get changed to 
"11112" for that call.

This would be a good approach if there was no apparent relationship between 
1234 and 11112.

There are ways to modify the callerID on the way out based on the extension, 
say for example you have a callerID of 43703 and you just want to translate 
that to "703" on the way out, you could extract the digits and replace.

In this example if the callerid is in the range I want, translate the 
callerID to something else (in fact we just take the last three digits)

exten => 115,n,ExecIf($[$["${CALLERID(num)}" >= "43000"] & $["${CALLERID(num)}" <= "43999"]],Set,CALLERID(number)=${CALLERID(num):-3})

Hope one of these answers gives you some inspiration...


Rob