NAT keep-alive - ReadList.com

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NAT keep-alive
\ Ugo Bellavance (22 Nov 2007)
. \ Ugo Bellavance (23 Nov 2007)
. . \ Ugo Bellavance (23 Nov 2007)

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Subject:	NAT keep-alive
Group:	Asterisk-users
From:	Ugo Bellavance
Date:	22 Nov 2007

Hi,

On my linksys/sipura phones/ATA, there is a setting called "NAT
Mapping Enable" and another called "NAT Keep Alive Enable"

These settings must be on in my setup so that my phones/ATA remain
connected to my * server. My setup is:

Home LAN - Pfsense (NAT, Dynamic Public IP)- Internet - PFsense (1-to-1
NAT, Static public IP) - Asterisk server.

I was wondering:

What are doing those parameters?

I looked on my Polycom 330 and I haven't found anything similar... Is
Linksys the only Mfg that has a similar setting? The polycom doesn't
have STUN settings either. I'm looking to buy some SNOM phones (M3 and
a wired one), does SNOM phones have something similar?

BTW, are there public STUN servers, or must I have my one to use it?

Regards,

Ugo

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