[Users] NEW FEATURE: new pseudo-variables from dialog module

[Bogdan-Andrei Iancu]

Hi everybody,

the dialog module exports 2 new pseudo variables:

    *DLG_lifetime* - the duration (in seconds) of the dialog. The 
duration is calculated from the dialog confirmation and the current 
moment. This PV will be available only for sequential requests, after 
doing loose_route(). So, it can be used to get timestamps foe sequential 
requests, or to get the overall dialog duration and to use it for 
accounting. Closes Feature Request 1611930.

https://sourceforge.net/tracker/index.php?func=detail&aid=1611930&group_id=139143&atid=743023


    *DLG_status* - Returns the status of the dialog. This PV will be 
available only for sequential requests, after doing loose_route(). Value 
may be:
            3 - Confirmed by a final reply but no ACK received yet.
            4 - Confirmed by a final reply and ACK received.
            5 - Dialog ended.
    Can be used to delay re-INVITEs until ACK is received and avoid 
signalling races. Closes Feature Request 1610630.

https://sourceforge.net/tracker/index.php?func=detail&aid=1610630&group_id=139143&atid=743023


regards,
bogdan