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Posted by Norm Young on February 15, 2006, 12:36 pm
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Ramon F Herrera wrote:
> If you look in the Linksys pages, you will find that they only offer
> two devices which combine NAT routing and SIP telephony, for domestic
> use:
>
>
http://www.linksys.com/servlet/Satellite?c=L_Product_C1&childpagename=US%2FLayout&cid=1118334687006&pagename=Linksys%2FCommon%2FVisitorWrapper
>
>
> 1) PAP2: This seems to be a Sipura (now Linksys). In the manual they
> refer exclusively to Vonage. In my experience the Sipura boxes don't
> have the capacity to drive a LAN, as their NAT capabilities are lacking
> and the most you can connect to them is ONE PC (in the PC port).
> Sometimes not even one connected PC will work, because as soon as you
> connect it, the audio will become impossible to understand.
>
> 2) RT41P2-AT: This is a much more capable device, combining the NAT
> abilities of a Linksys product with the SIP abilities of a Sipura.
> Looks like it should fill my needs. EXCEPT that this product only
> works in conjunction with the AT&T CallVantage service.
>
Well I hope the RT41P2 is better implemented than the RT31P2.
I had nothing but grief with that box whenever the LAN/WAN ports
were heavily loaded (hanging & self-rebooting). I suspect a very
badly implemented NAT which can't handle a large number of
connections.
I finally convinced Vonage to swap it out for an RTP-300 which
is more stable under heavy load but doesn't seem to implement
any QoS/priority for the voice stream. Under heavy load you
can't even originate or receive a call and although the RTP-300
doesn't crash or hang, you can forget about making/receiving
phone calls while running a bit-torrent for example.
Overall I'm very disappointed with the Linksys products I've
tried, they are certainly not what I've come to expect from a
product with the name Cisco on the box.
Norm
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