[asterisk-users] Asterisk's DANGEROUS Transfer CDR's

[Grey Man]

----- Original Message ----
> From: Mindaugas Kezys <mkezys at gmail.com>
> To: Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users at lists.digium.com>
> Sent: Friday, 1 February, 2008 4:04:30 PM
> Subject: Re: [asterisk-users] Asterisk's DANGEROUS Transfer CDR's
> 
>For 
such 
cases 
we 
usually 
suggest 
to 
put 
2 
boxes 
in 
your 
infrastructure: 
>
> 1. 
Main 
billing 
gateway 
- 
where 
all 
PBX'es 
are 
connected 
(all 
client's 
remote 
PBX'es 
and 
your 
Local 
PBX)
> 2. 
Local 
PBX 
- 
where 
user's 
without 
PBX'es 
are 
connected
> 
> Then 
user 
connects 
in 
following 
way:
> 
> User 
-> 
Local 
PBX 
-> 
Main 
GTW 
-> 
PSTN
>
> That 
way 
you 
will 
be 
save 
from 
transfer 
issue 
and 
all 
your 
clients 
will 
be 
able 
to 
transfer 
their 
calls 
on 
Local 
PBX.

Hi Mindaugas,

That's a good tip, thanks for that.

My concerns would be that the call path is now running through two Asterisk servers and that could add some quality problems, probably negligible though. The other concern would be that for fault tolerance we'd now need double the number of servers. If we currently require 3 Asterisk load balanced servers then now we are going to need 6. It's an idea worth toying around with though.

Maybe we could specify that all customers that required the ability to transfer had to use server x and then from the SIP Proxy only allow REFER requests to that server.

Regards,

Greyman.



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