[OpenSIPS-Users] Need Suggestion on Large Setup

[Alex Balashov]

This question mainly hinges on whether the topology and configuration of 
your providers allows you to get away with not using a B2BUA.

In other words, do you *need* a B2BUA?  Or can you get away with having 
customers pass media and signaling (except in NAT cases) directly to 
your service provider, because their signaling gateways and media 
gateway farms are publicly exposed?

There are also interop issues;  because with a proxy, technically the 
provider's equipment is interoperating with whatever's behind the proxy 
(i.e. customer CPE), some may not like that idea.

There are various situations in which a B2BUA is necessary and you can't 
get away with just using a proxy, but most of the time they all 
fundamentally have to do with whether the endpoints of the calls have 
comprehensive access to each other.  The applicability of that is 
something that only you can determine.

ram wrote:

> Hi
>  
> iam having Old SER runing with basic need of Sip Proxy
>  
> now iam planning to  migrate to handle more calls, since my requirement 
> is increased
> and  my setup is not upto date. its quite old of 3 years now
>  
> So i have 3 options but iam confused which is the best.
>  
> So expert coments will be apprciated.
>  
> Option1 :
>  
> Opensips
> - simple proxy to handle the register users, and forward the calls to 
> provider
> - Acc / CDR
> - NAT
> - LCR
> - Carrierroute
> Media Proxy
> - to handle FAR NAT users
> Freeradius
> - handle CDR and CDRtools
>  
> Option2:
>  
> Opensips - as a registrar and loadbalance
> Freeswitch - NAT, IVR, CDR, Conference, LCR , Loadbalance Providers ( 
> number of boxes) , b2bua
>       
> Option 3 :
>  
> Opensips - as a registrar and loadbalance
> Asterisk- NAT, IVR, CDR, Conference, LCR , Loadbalance Providers ( 
> number of boxes). , b2bua
>  
>  
>  
> your inputs are apprciated.
>  
> Ram
>  
> 
> 
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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
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