On 4/26/11 9:20 PM, Klaus Darilion wrote:
Jan Janak wrote:
On Tue, Apr 26, 2011 at 8:42 PM, Klaus Darilion
<klaus.mailingli...@pernau.at> wrote:
Jan Janak wrote:
On Tue, Apr 26, 2011 at 7:41 PM, Klaus Darilion
<klaus.mailingli...@pernau.at> wrote:
Not helping with this issue - but having another question: what is
$td.did?
Is it a pseudo variable (as it starts with $)? Is it somehow
related/derived
to/from $td or is the '.' just a character like a-z?
This is the SER syntax for AVP names, see
http://sip-router.org/wiki/devel/avps-ser
Aha. But how does sip-router decide if $td is a ser AVP or a
Kamailio pseudo
variable?
If it starts with ${fu,tu,fd,td,g}. then it is taken as a SER AVPs,
otherwise it is a Kamailio pseudo variable.
Not sure if I got it right. I guess if I use $fu it will be Kamailio's
from-URI pseudo variable as there is no ser $fu AVP as $fu is only the
prefix and not the full AVP name, a full ser AVP name would be for
example $fu.foo.
Is this correct?
actually, to give further clarifications, the script variable lookup for
$xyz is like:
- search in K-style PV table for 'xyz' name and if found use it
- if not found, treat it as AVP
So, $xyz (literally) is practically the same as $avp(xyz). When the
integration happened, it was discovered there was no critical
overlapping between existing PV names and ser avp lists - as mentioned
in this thread, ser had lately several avp classes, using a dot to mark
the end of the class and the start of the avp name.
In the past a non-existing PV name in K would have thrown error, now is
considered to be classic K AVP (in ser style it is from uri avp).
Now the $avp(...) PV supports all classes, so you can use for example
$avp(td.did). If the avp class is missing, then it is the 'f' class,
afaik based on some emails sent in the past on the lists -- so these
should be equivalent in the config file:
- $myavp
- $f.myavp
- $avp(myavp)
- $avp(f.myavp)
However, you better test the above equivalency, since I am using only
K-style avps.
Cheers,
Daniel
--
Daniel-Constantin Mierla
http://www.asipto.com
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