asterisk users - Jun 2007 - asterisk call unique id in dialplan

Hi

how can i retrieve the call unique id of asterisk in the dialplan?

I have enabled the cdr logging on a postgres database.

In the table cdr each record has a field that assumes an unique id
(for example: 1141628669.51)

Can i retrieve this from the dialplan?

For example:

exten => 203,1,Answer
exten => 203,2,Set(CALLERID(name)=UNIQUE_ID - ${var_name_unique_id})
exten => 203,3,Dial(SIP/203)


Can i do something similar that?
How can i retrieve the unique_id generated?
thanks.


-- 
/*************/
nik600
https://sourceforge.net/projects/ccmanager
https://sourceforge.net/projects/nikstresser

In the top directory of your asterisk source in the doc dir there is a
file that explains channel variables.

many thanks!

bye

On 6/29/07, Alexander Lopez <Alex.Lopez at opsys.com>
wrote:
> In the top directory of your asterisk source in the doc dir there is a
> file that explains channel variables.
>
> From that file:
> ${UNIQUEID}             * Current call unique identifier
>
> BEWARE the UNIQUEID can be repeated do not use this as a primary index
> on your databse.
>
>
> >>-----Original Message-----
> >>From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-
> >>bounces at lists.digium.com] On Behalf Of nik600
> >>Sent: Friday, June 29, 2007 6:07 AM
> >>To: Asterisk Users Mailing List - Non-Commercial Discussion
> >>Subject: [asterisk-users] asterisk call unique id in dialplan
> >>
> >>Hi
> >>
> >>how can i retrieve the call unique id of asterisk in the dialplan?
> >>
> >>I have enabled the cdr logging on a postgres database.
> >>
> >>In the table cdr each record has a field that assumes an unique id
> >>(for example: 1141628669.51)
> >>
> >>Can i retrieve this from the dialplan?
> >>
> >>For example:
> >>
> >>exten => 203,1,Answer
> >>exten => 203,2,Set(CALLERID(name)=UNIQUE_ID -
${var_name_unique_id})
> >>exten => 203,3,Dial(SIP/203)
> >>
> >>
> >>Can i do something similar that?
> >>How can i retrieve the unique_id generated?
> >>thanks.
> >>
> >>
> >>--
> >>/*************/
> >>nik600
> >>https://sourceforge.net/projects/ccmanager
> >>https://sourceforge.net/projects/nikstresser
> >>
> >>_______________________________________________
> >>--Bandwidth and Colocation Provided by http://www.api-digital.com--
> >>
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>
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-- 
/*************/
nik600
https://sourceforge.net/projects/ccmanager
https://sourceforge.net/projects/nikstresser

Alexander Lopez wrote:
> From that file:
> ${UNIQUEID}             * Current call unique identifier
> 
> BEWARE the UNIQUEID can be repeated do not use this as a primary index
> on your databse.
A UNIQUEID value will never be used for more than a single channel on the same 
server.  It is a combination of the current time, and a unique call counter.  It
could only happen if you both restarted Asterisk and messed around with the 
system clock.  Even then, it is extremely unlikely.

However, it is possible for there to be more than one CDR record for the same 
unique ID.  That varies depending on configuration.

-- 
Russell Bryant
Software Engineer
Digium, Inc.

On Fri, 2007-06-29 at 12:06 +0200, nik600 wrote:
> Hi
> 
> how can i retrieve the call unique id of asterisk in the dialplan?
> 
> I have enabled the cdr logging on a postgres database.
> 
> In the table cdr each record has a field that assumes an unique id
> (for example: 1141628669.51)
> 
> Can i retrieve this from the dialplan?
> 
> For example:
> 
> exten => 203,1,Answer
> exten => 203,2,Set(CALLERID(name)=UNIQUE_ID - ${var_name_unique_id})
> exten => 203,3,Dial(SIP/203)
> 
> 
> Can i do something similar that?
> How can i retrieve the unique_id generated?
> thanks.
> 
> 
the uniqueID field can lead you to misery and heartbreak, possibly. In
some transfer situations, the uniqueID will change on the channel (via
masquerading), 
from the start of a bridge to the end of the bridge. (for instance,
using Zap phones, do an unattended transfer via a hookflash (A picks up
phone, dials B,
B hookflashes; gets dialtone and dials C; then B hangs up before C
answers.)

Right now, I don't think the CHANNEL function returns the name or
uniqueID fields. Nope. Just checked. I personally would like to see name
as an option, so I could fetch the channel name, and uniqueID would also
be a good one. You can fetch the uniqueid field from the CDR associated
with the channel, tho! See ${CDR(uniqueid)}, it was set at some point
from the uniqueid field in the channel. It may hold the original
uniqueID from the channel, or it might also have been updated, had it
changed, depending on life, circumstances, and the phase of the moon,
mayhaps, tho.

murf

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