[SR-Users] Keeping track of routing/dialog attribute value pairs

Olle E. Johansson oej at edvina.net
Fri Apr 10 14:45:17 CEST 2015


On 10 Apr 2015, at 14:21, Daniel Tryba <d.tryba at pocos.nl> wrote:

> On Friday 10 April 2015 13:16:40 Dirk Teurlings - SIGNET B.V. wrote:
>> Throughout the routes of kamailio we use multiple variables. These 
>> consist of $var, $avp, $dlg_var and probably more. What's the policy for 
>> these variables when used. When, if even, are they being cleaned up 
>> after a call has been terminated.
> 
> These variables are limited to their scope, a $var is valid in the current SIP 
> message. An $avp's scope is a SIP transaction (eg from INVITE til the end of a 
> BYE),
No, a transaction is a request and the attached responses. From an INVITE to the 
final response or a BYE to the final
response to the BYE - it's not in between INVITE and BYE.

> the same for $dlg_var but then only when using the dialog module. 
THis applies to the call.


/O


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