Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

PSTN Emulation with CCM Lab Question

For our internal voice lab we want to be able to simulate the PSTN.

If I have Call manager with two sites(both with MGCP gateways, DSP's and 1MFT-t1) can I make calls over the pstn links as long as I set one side up as the Network Side? Our goal is to use this setup to test SRST failover, AAR etc...

Or will I need a PSTN simulator to get this testing capabilities between Call Manager (4.1.3) and the gateways?

Thanks

2 REPLIES
Green

Re: PSTN Emulation with CCM Lab Question

No need to setup a PSTN simulator.

can I make calls over the pstn links as long as I set one side up as the Network Side?

YES! T1s back 2 back can do it

u can also setup a third router.

That acts as PSTN swithc

You can do the following:

Site A Router 1 connected to PSTN Router

Site B Router 2 connected to PSTN Router

PSTN Router Router 3 with 2 T1 cards.

with that you can emulate all PSTN scnearios.

Actually a back to back should do it but I would use the previuos one.

New Member

Re: PSTN Emulation with CCM Lab Question

Yes, you can,

I always in similar situations (testing, classes, etc.) use additional router withe two E1/T1 PRI instraces, one IP Phone and CME configuration. This way I able to test calls between sites and calls to the PSTN (which in my situation is CME part of the router's configuration). I configue IP Phone (7960) with up to 6 characteristic DN such as emergency, local, long distance, international, toll free etc.

Regards

Wojtek

154
Views
0
Helpful
2
Replies