[sr-dev] domain attributes

[Klaus Darilion]

Jan Janak schrieb:
> On 02-07 16:04, Klaus Darilion wrote:
>>
>> Jan Janak schrieb:
>>> On 02-07 15:53, Juha Heinanen wrote:
>>>> Jan Janak writes:
>>>>
>>>>  > route[DOMAIN]
>>>>  > {
>>>>  >         # Check whether the caller is from a local domain.
>>>>  >         lookup_domain("$fd", "@from.uri.host");
>>>>  >  >         # Check whether the callee is at a local domain
>>>>  >         lookup_domain("$td", "@ruri.host");
>>>>  > }
>>>>  >  > The first call will store the did of the domain in $fd.did if 
>>>> it finds a
>>>>  > match. The second call will store the did in $td.did.
>>>>
>>>> jan,
>>>>
>>>> i start to get it, although i'm not familiar with ser's avp naming
>>>> system. can each avp name be followed by .something? what does @ sign
>>>> mean in front of ruri.host in above?  can the same call be written as:
>>>>
>>>> lookup_domain("$td", "$rd") ?
>>> Identifiers starting with $ denote AVPs. Identifiers starting with @ denote
>>> selects. Selects are similar to pseudo-variables in Kamailio.
>> Hi Jan!
>>
>> So, how are ser identifiers and Kamailio pseudo-variables  
>> differentiated? Both start with $.
>>
>> e.g. in Kamailio $fd is the domain of the URI in the From header.
> 
> Ohh, that's a very good point and this is also probably the reason why Juha
> was asking about the lookup_domain("$fd", "$fd") example--but I didn't get it.
> 
> I am not sure now whether $fd in the second parameter of lookup_domain will be
> treated as an AVP or as a pseudo-variable, Andrei?

Is the $fd identifer only in certain function parameters allowed or 
everywhere in the config script?

regards
klaus