[cisco-voip] PSTN network emulation for voice and data

[Jason Aarons (AM)]

So simulate a PSTN I just use a router with 4 VWIC2-2MFT-T1E1 cards.  Let’s me have 8 sites via PRIs either E1 or T1. Builds your sip/h323 skills ☺

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Tom Storey
Sent: Monday, January 12, 2015 2:57 PM
To: Walenta, Philip
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] PSTN network emulation for voice and data


Hi Philip,

I came across those boxes the other day and indeed they look promising. I think the only thing they are lacking are E1 interfaces, which is what all of my current boxes are filled with. Not too much of a big deal though, T1 WICs/VWICs etc are not too expensive.

On 12 January 2015 at 18:47, Walenta, Philip <Philip.Walenta at polycom.com<mailto:Philip.Walenta at polycom.com>> wrote:
Honestly, go find yourself some old Adtran Atlas gear.  It’s ideal for this sort of thing and can emulate everything perfectly (ISDN BRI, PRI, T1, even T.120 data ISDN).

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Tom Storey
Sent: Monday, January 12, 2015 12:19 PM
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] PSTN network emulation for voice and data

Cross posting from cisco-nsp, as there may be more people in the know about the inner workings of this kind of thing over here. :-)

On 12 January 2015 at 06:02, Tom Storey <tom at snnap.net<mailto:tom at snnap.net>> wrote:

Hi everyone.

I'm looking at putting together a box with some PRI, BRI and FXS interfaces to act as an "exchange in a box."

Cisco has a 2 port BRI VIC that can do network emulation (VIC2-2BRI-NT/TE) but I need some help to clarify a point.

It seems that this VIC can be used to allow you to connect terminal equipment, which I guess could include a router with another BRI VIC, and place voice calls between the two devices. But, could I take something like a WIC-1B-S/T and connect it to this VIC to place data calls between a router and an access server?

Has anyone tried this, or does anyone simply know if it won't work and I'd be wasting my time/money? Perhaps I would have to configure the BRI to do DoV to work?

Thanks
Tom




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