[OpenSIPS-Users] limit number of outbound calls using DIALOG

[Alex Balashov]

Use a dialog profile.  Use $fu as the key ("value").  Check if profile 
size is > 1, refuse the call.

That's what they're there for.

Jayesh Nambiar wrote:

> Hi,
> I am looking at an option to limit more than one call per user even if 
> they are registered from multiple locations.
> Basically if User A calls from location A and if the call is active, 
> User A registered from location B should not be allowed to make a call. 
> What I did was:
> 
> 1) Create a dialog after every initial INVITE initiated by users
> 2) Before creating the dialog, query the dialog table to check if $fu 
> has an entry in the dialog table using avp_db_query.
> 3) If yes, means user A is already on a call so send a 403, Forbidden.
> 4) Else, create the dialog and process call.
> 
> Although this works, i just wonder if doing avp_db_query everytime to 
> check if the caller has a call active is an efficient way of doing it??
> Is it possible to store these dialog parameters in localcache using 
> memcache module or access the dialog parameters from memory and compare 
> it with the INVITE messages !!!
> 
> Just trying to find a more efficient way of achieving this.
> 
> Thanks for any inputs you might have !!
> 
> --- Jay
> 
> 
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> 
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-- 
Alex Balashov
Evariste Systems
Web     : http://www.evaristesys.com/
Tel     : (+1) (678) 954-0670
Direct  : (+1) (678) 954-0671