[Serusers] SER & PSTN gateways (Ovislink?)

[Klaus Darilion]

Tom wrote:

>   Is anyone using any of the Ovislink PSTN gateways (eLive 400/800) with
> SER?
> 
>   The products specs state support for H.323 and SIP.  Like many products
> it means that the unit supports only H.323, and you need to download new
> firmware which replaces H.323 with SIP.  I'm new to SIP in general, and
> haven't got a working configuration yet.
> 
>   How is PSTN gateway security supposed to work?  I see in the manual
> there is an example using SER to protect a "simple" gateway.  Ovislink
> definitely fits into that category.  I guess that means that I need to put
> ACLs on the router to make sure that all SIP traffic to the gateway is
> blocked except from the SER server.  How do better gateways implement
> security?

The gateway should only accept requests fromt he IP address of your 
proxy and only TCP requests (UDP can be spoofed).

klaus

> 
>   Any nice PSTN gateways around that anyone can recommend for use?  I'm
> looking at Cisco, which seems like a lot of people use.  I've looked at
> Patton and Vegastream too.  Neither of these companies has a 8 port POTS
> PSTN gateway though.
> 
> 
> Tom
> 
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