[VoiceOps] Enterprise customer desiring NAT for their SIP

Frank Bulk frnkblk at iname.com
Mon Feb 27 14:39:13 EST 2012

Yes, bridging both worlds means I use TDM terms from time to time. =)


-----Original Message-----
From: Alex Balashov [mailto:abalashov at evaristesys.com] 
Sent: Monday, February 27, 2012 7:50 AM
To: Frank Bulk
Cc: voiceops at voiceops.org
Subject: Re: [VoiceOps] Enterprise customer desiring NAT for their SIP

On 02/26/2012 11:34 PM, Frank Bulk wrote:

> Yes, our SBC does supports the usual NAT traversal features, but
> our customer will have more than one trunk with us...they have
> several two PRIs today, so it will be 15 to 20 active trunks on a
> regular basis and almost 30 at peak.

This is a situation where the discussion is unaided by use of Golden 
Years PSTN terminology.

If there is going to be one signaling channel and 15-20 (with up to 
30) calls, you're fine, as long as the SBC can do the appropriate NAT 
and media source port detection.

Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/, http://www.alexbalashov.com/

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