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Cisco 1751v with two FXS port.

andrea.meconi
Level 2
Level 2

‎12-31-2008 05:50 AM - edited ‎03-15-2019 03:17 PM

I need to move my voice gateway with an analog phone behind a PAT device that allows only port redirection.

I'm looking for help because now I'm not able to make an in or outbound call.

I believe I have a problem with NAT.

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Nicholas Matthews
Level 9
Level 9

‎12-31-2008 11:06 AM

Hi Andrea,

You will need to make sure that your PAT device supports fixup for the protocol you're using. If you're using H323, make sure it is H323-aware, or if you're using SIP, make sure it's SIP-aware. Also know that there are different versions of H323, and the gateway should use version 4 if you're on a more recent IOS.

We have some features that allow for the gateway to get around non-aware devices, but it is only available on the 5x00 boxes.

hth,

nick

andrea.meconi
Level 2
Level 2
In response to Nicholas Matthews

‎12-31-2008 01:22 PM

Hi Nick and thanks for your help.

My PAT device doesn't support fixup for SIP.

Happy new year!

Andrea.

0 Helpful

andrea.meconi
Level 2
Level 2
In response to Nicholas Matthews

‎01-01-2009 07:32 AM

There is a way to configure STUN on my 1751v?

Thanks.

Andrea.

0 Helpful

andrea.meconi
Level 2
Level 2
In response to andrea.meconi

‎01-07-2009 11:22 PM

Any ideas!?

Thanks.

Andrea.

0 Helpful
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